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[PATCH v12 5/7] Row pattern recognition patch (docs).
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* [PATCH v12 5/7] Row pattern recognition patch (docs).
@ 2023-12-04 11:23 Tatsuo Ishii <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Tatsuo Ishii @ 2023-12-04 11:23 UTC (permalink / raw)

---
 doc/src/sgml/advanced.sgml   | 80 ++++++++++++++++++++++++++++++++++++
 doc/src/sgml/func.sgml       | 54 ++++++++++++++++++++++++
 doc/src/sgml/ref/select.sgml | 38 ++++++++++++++++-
 3 files changed, 170 insertions(+), 2 deletions(-)

diff --git a/doc/src/sgml/advanced.sgml b/doc/src/sgml/advanced.sgml
index 755c9f1485..cf18dd887e 100644
--- a/doc/src/sgml/advanced.sgml
+++ b/doc/src/sgml/advanced.sgml
@@ -537,6 +537,86 @@ WHERE pos &lt; 3;
     <literal>rank</literal> less than 3.
    </para>
 
+   <para>
+    Row pattern common syntax can be used to perform row pattern recognition
+    in a query. Row pattern common syntax includes two sub
+    clauses: <literal>DEFINE</literal>
+    and <literal>PATTERN</literal>. <literal>DEFINE</literal> defines
+    definition variables along with an expression. The expression must be a
+    logical expression, which means it must
+    return <literal>TRUE</literal>, <literal>FALSE</literal>
+    or <literal>NULL</literal>. The expression may comprise column references
+    and functions. Window functions, aggregate functions and subqueries are
+    not allowed. An example of <literal>DEFINE</literal> is as follows.
+
+<programlisting>
+DEFINE
+ LOWPRICE AS price &lt;= 100,
+ UP AS price &gt; PREV(price),
+ DOWN AS price &lt; PREV(price)
+</programlisting>
+
+    Note that <function>PREV</function> returns the price column in the
+    previous row if it's called in a context of row pattern recognition. So in
+    the second line the definition variable "UP" is <literal>TRUE</literal>
+    when the price column in the current row is greater than the price column
+    in the previous row. Likewise, "DOWN" is <literal>TRUE</literal> when when
+    the price column in the current row is lower than the price column in the
+    previous row.
+   </para>
+   <para>
+    Once <literal>DEFINE</literal> exists, <literal>PATTERN</literal> can be
+    used. <literal>PATTERN</literal> defines a sequence of rows that satisfies
+    certain conditions.  For example following <literal>PATTERN</literal>
+    defines that a row starts with the condition "LOWPRICE", then one or more
+    rows satisfy "UP" and finally one or more rows satisfy "DOWN". Note that
+    "+" means one or more matches. Also you can use "*", which means zero or
+    more matches. If a sequence of rows which satisfies the PATTERN is found,
+    in the starting row of the sequence of rows all window functions and
+    aggregates are shown in the target list. Note that aggregations only look
+    into the matched rows, rather than whole frame. In the second or
+    subsequent rows all window functions and aggregates are NULL. For rows
+    that do not match the PATTERN, all window functions and aggregates are
+    shown AS NULL too, except count which shows 0. This is because the
+    unmatched rows are in an empty frame. Example of
+    a <literal>SELECT</literal> using the <literal>DEFINE</literal>
+    and <literal>PATTERN</literal> clause is as follows.
+
+<programlisting>
+SELECT company, tdate, price,
+ first_value(price) OVER w,
+ max(price) OVER w,
+ count(price) OVER w
+FROM stock,
+ WINDOW w AS (
+ PARTITION BY company
+ ORDER BY tdate
+ ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING
+ AFTER MATCH SKIP PAST LAST ROW
+ INITIAL
+ PATTERN (LOWPRICE UP+ DOWN+)
+ DEFINE
+  LOWPRICE AS price &lt;= 100,
+  UP AS price &gt; PREV(price),
+  DOWN AS price &lt; PREV(price)
+);
+</programlisting>
+<screen>
+ company  |   tdate    | price | first_value | max | count 
+----------+------------+-------+-------------+-----+-------
+ company1 | 2023-07-01 |   100 |         100 | 200 |     4
+ company1 | 2023-07-02 |   200 |             |     |      
+ company1 | 2023-07-03 |   150 |             |     |      
+ company1 | 2023-07-04 |   140 |             |     |      
+ company1 | 2023-07-05 |   150 |             |     |     0
+ company1 | 2023-07-06 |    90 |          90 | 130 |     4
+ company1 | 2023-07-07 |   110 |             |     |      
+ company1 | 2023-07-08 |   130 |             |     |      
+ company1 | 2023-07-09 |   120 |             |     |      
+ company1 | 2023-07-10 |   130 |             |     |     0
+</screen>
+   </para>
+
    <para>
     When a query involves multiple window functions, it is possible to write
     out each one with a separate <literal>OVER</literal> clause, but this is
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 20da3ed033..8a18e0ee23 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -21935,6 +21935,7 @@ SELECT count(*) FROM sometable;
         returns <literal>NULL</literal> if there is no such row.
        </para></entry>
       </row>
+
      </tbody>
     </tgroup>
    </table>
@@ -21974,6 +21975,59 @@ SELECT count(*) FROM sometable;
    Other frame specifications can be used to obtain other effects.
   </para>
 
+  <para>
+   Row pattern recognition navigation functions are listed in
+   <xref linkend="functions-rpr-navigation-table"/>.  These functions
+   can be used to describe DEFINE clause of Row pattern recognition.
+  </para>
+
+   <table id="functions-rpr-navigation-table">
+    <title>Row Pattern Navigation Functions</title>
+    <tgroup cols="1">
+     <thead>
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        Function
+       </para>
+       <para>
+        Description
+       </para></entry>
+      </row>
+     </thead>
+
+     <tbody>
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>prev</primary>
+        </indexterm>
+        <function>prev</function> ( <parameter>value</parameter> <type>anyelement</type> )
+        <returnvalue>anyelement</returnvalue>
+       </para>
+       <para>
+        Returns the column value at the previous row;
+        returns NULL if there is no previous row in the window frame.
+       </para></entry>
+      </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>next</primary>
+        </indexterm>
+        <function>next</function> ( <parameter>value</parameter> <type>anyelement</type> )
+        <returnvalue>anyelement</returnvalue>
+       </para>
+       <para>
+        Returns the column value at the next row;
+        returns NULL if there is no next row in the window frame.
+       </para></entry>
+      </row>
+
+     </tbody>
+    </tgroup>
+   </table>
+
   <note>
    <para>
     The SQL standard defines a <literal>RESPECT NULLS</literal> or
diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml
index 227ba1993b..dabaca9127 100644
--- a/doc/src/sgml/ref/select.sgml
+++ b/doc/src/sgml/ref/select.sgml
@@ -969,8 +969,8 @@ WINDOW <replaceable class="parameter">window_name</replaceable> AS ( <replaceabl
     The <replaceable class="parameter">frame_clause</replaceable> can be one of
 
 <synopsis>
-{ RANGE | ROWS | GROUPS } <replaceable>frame_start</replaceable> [ <replaceable>frame_exclusion</replaceable> ]
-{ RANGE | ROWS | GROUPS } BETWEEN <replaceable>frame_start</replaceable> AND <replaceable>frame_end</replaceable> [ <replaceable>frame_exclusion</replaceable> ]
+{ RANGE | ROWS | GROUPS } <replaceable>frame_start</replaceable> [ <replaceable>frame_exclusion</replaceable> ] [row_pattern_common_syntax]
+{ RANGE | ROWS | GROUPS } BETWEEN <replaceable>frame_start</replaceable> AND <replaceable>frame_end</replaceable> [ <replaceable>frame_exclusion</replaceable> ] [row_pattern_common_syntax]
 </synopsis>
 
     where <replaceable>frame_start</replaceable>
@@ -1077,6 +1077,40 @@ EXCLUDE NO OTHERS
     a given peer group will be in the frame or excluded from it.
    </para>
 
+   <para>
+    The
+    optional <replaceable class="parameter">row_pattern_common_syntax</replaceable>
+    defines the <firstterm>row pattern recognition condition</firstterm> for
+    this
+    window. <replaceable class="parameter">row_pattern_common_syntax</replaceable>
+    includes following subclauses. <literal>AFTER MATCH SKIP PAST LAST
+    ROW</literal> or <literal>AFTER MATCH SKIP TO NEXT ROW</literal> controls
+    how to proceed to next row position after a match
+    found. With <literal>AFTER MATCH SKIP PAST LAST ROW</literal> (the
+    default) next row position is next to the last row of previous match. On
+    the other hand, with <literal>AFTER MATCH SKIP TO NEXT ROW</literal> next
+    row position is always next to the last row of previous
+    match. <literal>DEFINE</literal> defines definition variables along with a
+    boolean expression. <literal>PATTERN</literal> defines a sequence of rows
+    that satisfies certain conditions using variables defined
+    in <literal>DEFINE</literal> clause. If the variable is not defined in
+    the <literal>DEFINE</literal> clause, it is implicitly assumed
+    following is defined in the <literal>DEFINE</literal> clause.
+
+<synopsis>
+<literal>variable_name</literal> AS TRUE
+</synopsis>
+
+    Note that the maximu number of variables defined
+    in <literal>DEFINE</literal> clause is 26.
+
+<synopsis>
+[ AFTER MATCH SKIP PAST LAST ROW | AFTER MATCH SKIP TO NEXT ROW ]
+PATTERN <replaceable class="parameter">pattern_variable_name</replaceable>[+] [, ...]
+DEFINE <replaceable class="parameter">definition_varible_name</replaceable> AS <replaceable class="parameter">expression</replaceable> [, ...]
+</synopsis>
+   </para>
+
    <para>
     The purpose of a <literal>WINDOW</literal> clause is to specify the
     behavior of <firstterm>window functions</firstterm> appearing in the query's
-- 
2.25.1


----Next_Part(Fri_Dec__8_10_16_13_2023_489)--
Content-Type: Text/X-Patch; charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="v12-0006-Row-pattern-recognition-patch-tests.patch"



^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--





^ permalink  raw  reply  [nested|flat] 141+ messages in thread

* [PATCH] Cover some errors and corner conditions in repack.c
@ 2026-05-28 09:20 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 141+ messages in thread

From: Álvaro Herrera @ 2026-05-28 09:20 UTC (permalink / raw)

---
 src/test/regress/expected/cluster.out | 33 +++++++++++++++++++++++++++
 src/test/regress/sql/cluster.sql      | 28 +++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 23f312c62a3..cfbe2764427 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -697,6 +697,39 @@ SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 (4 rows)
 
 COMMIT;
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+ERROR:  "clstr_idx_b" is not an index for table "clstr_table_one"
+CLUSTER clstr_table_one USING nonexistant;
+ERROR:  index "nonexistant" for table "clstr_table_one" does not exist
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+ERROR:  cannot cluster on index "clstr_hash_idx" because access method does not support clustering
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+ERROR:  cannot cluster on partial index "clstr_partial_idx"
+REPACK pg_class USING INDEX pg_class_oid_index;
+ERROR:  permission denied: "pg_class" is a system catalog
+DETAIL:  System catalogs can only be clustered by the index they're already clustered on, if any, unless "allow_system_table_mods" is enabled.
+DROP TABLE clstr_table_one, clstr_table_two;
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+ ?column? 
+----------
+ t
+(1 row)
+
+DROP MATERIALIZED VIEW clstr_matview;
 ----------------------------------------------------------------------
 --
 -- REPACK
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index c2f329ecd1b..1cb1942263c 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -328,6 +328,34 @@ EXPLAIN (COSTS OFF) SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 SELECT * FROM clstr_expression WHERE -a = -3 ORDER BY -a, b;
 COMMIT;
 
+-- verify some error cases
+CREATE TABLE clstr_table_one (id int, val text);
+CREATE TABLE clstr_table_two (id int, val text);
+CREATE INDEX clstr_idx_b ON clstr_table_two (id);
+CLUSTER clstr_table_one USING clstr_idx_b;
+CLUSTER clstr_table_one USING nonexistant;
+
+CREATE INDEX clstr_hash_idx ON clstr_table_one USING hash (id);
+CLUSTER clstr_table_one USING clstr_hash_idx;
+
+CREATE INDEX clstr_partial_idx ON clstr_table_one (id) WHERE id > 0;
+CLUSTER clstr_table_one USING clstr_partial_idx;
+
+REPACK pg_class USING INDEX pg_class_oid_index;
+
+DROP TABLE clstr_table_one, clstr_table_two;
+
+-- verify that CLUSTER/REPACK don't touch a NO DATA matview
+CREATE MATERIALIZED VIEW clstr_matview AS
+    SELECT i FROM generate_series(1, 5) i
+    WITH NO DATA;
+CREATE INDEX clstr_matview_idx ON clstr_matview (i);
+SELECT relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass \gset
+CLUSTER clstr_matview USING clstr_matview_idx;
+REPACK clstr_matview USING INDEX clstr_matview_idx;
+SELECT relfilenode = :relfilenode FROM pg_class WHERE oid = 'clstr_matview'::regclass;
+DROP MATERIALIZED VIEW clstr_matview;
+
 ----------------------------------------------------------------------
 --
 -- REPACK
-- 
2.47.3


--yrl6wzxda7bokrre--






^ permalink  raw  reply  [nested|flat] 141+ messages in thread


end of thread, other threads:[~2026-05-28 09:20 UTC | newest]

Thread overview: 141+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2023-12-04 11:23 [PATCH v12 5/7] Row pattern recognition patch (docs). Tatsuo Ishii <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>
2026-05-28 09:20 [PATCH] Cover some errors and corner conditions in repack.c Álvaro Herrera <[email protected]>

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