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[PATCH 5/7] Use BulkInsertState when copying data to the new heap.
826+ messages / 2 participants
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* [PATCH 5/7] Use BulkInsertState when copying data to the new heap.
@ 2026-03-11 14:20  Antonin Houska <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Antonin Houska @ 2026-03-11 14:20 UTC (permalink / raw)

It should make the copying more efficient. Besides that, buffer access
strategy is involved this way.

This diff reverts the changes done in previous parts of the series to
reform_and_rewrite_tuple() and introduces a separate function
heap_insert_for_repack().
---
 src/backend/access/heap/heapam_handler.c | 110 +++++++++++++++--------
 1 file changed, 72 insertions(+), 38 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index ae0b011f6c1..ee763c995f0 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -50,6 +50,11 @@
 static void reform_and_rewrite_tuple(HeapTuple tuple,
 									 Relation OldHeap, Relation NewHeap,
 									 Datum *values, bool *isnull, RewriteState rwstate);
+static void heap_insert_for_repack(HeapTuple tuple, Relation OldHeap,
+								   Relation NewHeap, Datum *values, bool *isnull,
+								   BulkInsertState bistate);
+static HeapTuple reform_tuple(HeapTuple tuple, Relation OldHeap,
+							  Relation NewHeap, Datum *values, bool *isnull);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -703,6 +708,7 @@ heapam_relation_copy_for_cluster(Relation OldHeap, Relation NewHeap,
 								 double *tups_recently_dead)
 {
 	RewriteState rwstate = NULL;
+	BulkInsertState	bistate = NULL;
 	IndexScanDesc indexScan;
 	TableScanDesc tableScan;
 	HeapScanDesc heapScan;
@@ -738,6 +744,8 @@ heapam_relation_copy_for_cluster(Relation OldHeap, Relation NewHeap,
 	if (!concurrent)
 		rwstate = begin_heap_rewrite(OldHeap, NewHeap, OldestXmin,
 									 *xid_cutoff, *multi_cutoff);
+	else
+		bistate = GetBulkInsertState();
 
 
 	/* Set up sorting if wanted */
@@ -967,8 +975,12 @@ heapam_relation_copy_for_cluster(Relation OldHeap, Relation NewHeap,
 			};
 			int64		ct_val[2];
 
-			reform_and_rewrite_tuple(tuple, OldHeap, NewHeap,
-									 values, isnull, rwstate);
+			if (!concurrent)
+				reform_and_rewrite_tuple(tuple, OldHeap, NewHeap,
+										 values, isnull, rwstate);
+			else
+				heap_insert_for_repack(tuple, OldHeap, NewHeap,
+									   values, isnull, bistate);
 
 			/*
 			 * In indexscan mode and also VACUUM FULL, report increase in
@@ -1016,10 +1028,15 @@ heapam_relation_copy_for_cluster(Relation OldHeap, Relation NewHeap,
 				break;
 
 			n_tuples += 1;
-			reform_and_rewrite_tuple(tuple,
-									 OldHeap, NewHeap,
-									 values, isnull,
-									 rwstate);
+			if (!concurrent)
+				reform_and_rewrite_tuple(tuple,
+										 OldHeap, NewHeap,
+										 values, isnull,
+										 rwstate);
+			else
+				heap_insert_for_repack(tuple, OldHeap, NewHeap,
+									   values, isnull, bistate);
+
 			/* Report n_tuples */
 			pgstat_progress_update_param(PROGRESS_REPACK_HEAP_TUPLES_INSERTED,
 										 n_tuples);
@@ -1031,6 +1048,8 @@ heapam_relation_copy_for_cluster(Relation OldHeap, Relation NewHeap,
 	/* Write out any remaining tuples, and fsync if needed */
 	if (rwstate)
 		end_heap_rewrite(rwstate);
+	if (bistate)
+		FreeBulkInsertState(bistate);
 
 	/* Clean up */
 	pfree(values);
@@ -2423,56 +2442,71 @@ heapam_scan_sample_next_tuple(TableScanDesc scan, SampleScanState *scanstate,
  * SET WITHOUT OIDS.
  *
  * So, we must reconstruct the tuple from component Datums.
- *
- * If rwstate=NULL, use simple_heap_insert() instead of rewriting - in that
- * case we still need to deform/form the tuple. TODO Shouldn't we rename the
- * function, as might not do any rewrite?
  */
 static void
 reform_and_rewrite_tuple(HeapTuple tuple,
 						 Relation OldHeap, Relation NewHeap,
 						 Datum *values, bool *isnull, RewriteState rwstate)
+{
+	HeapTuple       copiedTuple;
+
+	copiedTuple = reform_tuple(tuple, OldHeap, NewHeap, values, isnull);
+
+	/* The heap rewrite module does the rest */
+	rewrite_heap_tuple(rwstate, tuple, copiedTuple);
+
+	heap_freetuple(copiedTuple);
+}
+
+/*
+ * Insert tuple when processing REPACK CONCURRENTLY.
+ *
+ * rewriteheap.c is not used in the CONCURRENTLY case because it'd be
+ * difficult to do the same in the catch-up phase (as the logical
+ * decoding does not provide us with sufficient visibility
+ * information). Thus we must use heap_insert() both during the
+ * catch-up and here.
+ *
+ * We pass the NO_LOGICAL flag to heap_insert() in order to skip logical
+ * decoding: as soon as REPACK CONCURRENTLY swaps the relation files, it drops
+ * this relation, so no logical replication subscription should need the data.
+ *
+ * BulkInsertState is used because many tuples are inserted in the typical
+ * case.
+ */
+static void
+heap_insert_for_repack(HeapTuple tuple, Relation OldHeap, Relation NewHeap,
+					   Datum *values, bool *isnull, BulkInsertState bistate)
+{
+	tuple = reform_tuple(tuple, OldHeap, NewHeap, values, isnull);
+
+	heap_insert(NewHeap, tuple, GetCurrentCommandId(true),
+				HEAP_INSERT_NO_LOGICAL, bistate);
+
+	heap_freetuple(tuple);
+}
+
+/*
+ * Deform tuple, set values of dropped columns to NULL, form a new tuple and
+ * return it.
+ */
+static HeapTuple
+reform_tuple(HeapTuple tuple, Relation OldHeap, Relation NewHeap,
+			 Datum *values, bool *isnull)
 {
 	TupleDesc	oldTupDesc = RelationGetDescr(OldHeap);
 	TupleDesc	newTupDesc = RelationGetDescr(NewHeap);
-	HeapTuple	copiedTuple;
 	int			i;
 
 	heap_deform_tuple(tuple, oldTupDesc, values, isnull);
 
-	/* Be sure to null out any dropped columns */
 	for (i = 0; i < newTupDesc->natts; i++)
 	{
 		if (TupleDescCompactAttr(newTupDesc, i)->attisdropped)
 			isnull[i] = true;
 	}
 
-	copiedTuple = heap_form_tuple(newTupDesc, values, isnull);
-
-	if (rwstate)
-		/* The heap rewrite module does the rest */
-		rewrite_heap_tuple(rwstate, tuple, copiedTuple);
-	else
-	{
-		/*
-		 * Insert tuple when processing REPACK CONCURRENTLY.
-		 *
-		 * rewriteheap.c is not used in the CONCURRENTLY case because it'd be
-		 * difficult to do the same in the catch-up phase (as the logical
-		 * decoding does not provide us with sufficient visibility
-		 * information). Thus we must use heap_insert() both during the
-		 * catch-up and here.
-		 *
-		 * The following is like simple_heap_insert() except that we pass the
-		 * flag to skip logical decoding: as soon as REPACK CONCURRENTLY swaps
-		 * the relation files, it drops this relation, so no logical
-		 * replication subscription should need the data.
-		 */
-		heap_insert(NewHeap, copiedTuple, GetCurrentCommandId(true),
-					HEAP_INSERT_NO_LOGICAL, NULL);
-	}
-
-	heap_freetuple(copiedTuple);
+	return heap_form_tuple(newTupDesc, values, isnull);
 }
 
 /*
-- 
2.47.3


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v42-0006-Fix-a-few-problems-in-index-build-progress-reporting.patch



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v52 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--gp2pyozrd5pweboh
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v52-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v53 5/7] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index f2759cdbef1..8d9b2b2e370 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -279,6 +279,21 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 	/* Determine the lock mode to use. */
 	lockmode = RepackLockLevel((params.options & CLUOPT_CONCURRENT) != 0);
 
+	if ((params.options & CLUOPT_CONCURRENT) != 0)
+	{
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose any functionality.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
+	}
+
 	/*
 	 * If a single relation is specified, process it and we're done ... unless
 	 * the relation is a partitioned table, in which case we fall through.
@@ -511,19 +526,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could deadlock
-		 * if there's an XID already assigned.  It would be possible to run in
-		 * a transaction block if we had no XID, but this restriction is
-		 * simpler for users to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--qr3jlalmmcpkiodg
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v53-0006-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread

* [PATCH v51 07/10] Check for transaction block early in ExecRepack
@ 2026-04-03 15:23  Srinath Reddy Sadipiralla <[email protected]>
  0 siblings, 0 replies; 826+ messages in thread

From: Srinath Reddy Sadipiralla @ 2026-04-03 15:23 UTC (permalink / raw)

Currently, executing REPACK (CONCURRENTLY) without a table name inside a
transaction block throws the error "REPACK CONCURRENTLY requires explicit
table name" instead of the expected transaction block error. This occurs
because ExecRepack() validates the parsed options and missing relation
before verifying the transaction state.

This behavior is inconsistent with other utility commands like VACUUM
,REINDEX, etc; which invoke PreventInTransactionBlock() at the very start
of their execution to properly reject execution inside user transactions
before validating targets.

Add PreventInTransactionBlock to the top of ExecRepack() to enforce the
transaction block restriction early. This prevents the user from fixing
a missing table error only to immediately hit a transaction block error,
and also ensures consistency with rest of the commands.

Author: Srinath Reddy Sadipiralla <[email protected]>
---
 src/backend/commands/repack.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index d6e446d582d..d4c1f0e7652 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -292,6 +292,18 @@ ExecRepack(ParseState *pstate, RepackStmt *stmt, bool isTopLevel)
 		MyProc->statusFlags |= PROC_IN_CONCURRENT_REPACK;
 		ProcGlobal->statusFlags[MyProc->pgxactoff] = MyProc->statusFlags;
 		LWLockRelease(ProcArrayLock);
+
+		/*
+		 * Make sure we're not in a transaction block.
+		 *
+		 * The reason is that repack_setup_logical_decoding() could wait
+		 * indefinitely for our XID to complete. (The deadlock detector would
+		 * not recognize it because we'd be waiting for ourselves, i.e. no
+		 * real lock conflict.) It would be possible to run in a transaction
+		 * block if we had no XID, but this restriction is simpler for users
+		 * to understand and we don't lose anything.
+		 */
+		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
 	}
 
 	/*
@@ -523,21 +535,7 @@ cluster_rel(RepackCommand cmd, Relation OldHeap, Oid indexOid,
 	 * replica index OID.
 	 */
 	if (concurrent)
-	{
-		/*
-		 * Make sure we're not in a transaction block.
-		 *
-		 * The reason is that repack_setup_logical_decoding() could wait
-		 * indefinitely for our XID to complete. (The deadlock detector would
-		 * not recognize it because we'd be waiting for ourselves, i.e. no
-		 * real lock conflict.) It would be possible to run in a transaction
-		 * block if we had no XID, but this restriction is simpler for users
-		 * to understand and we don't lose anything.
-		 */
-		PreventInTransactionBlock(isTopLevel, "REPACK (CONCURRENTLY)");
-
 		check_repack_concurrently_requirements(OldHeap, &ident_idx);
-	}
 
 	/* Check for user-requested abort. */
 	CHECK_FOR_INTERRUPTS();
-- 
2.47.3


--r2slln3zpmilwu22
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v51-0008-Introduce-an-option-to-make-logical-replication-.patch"



^ permalink  raw  reply  [nested|flat] 826+ messages in thread