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[PATCH v1 4/4] combine relopts correctly for VACUUM commands
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* [PATCH v1 4/4] combine relopts correctly for VACUUM commands
@ 2025-06-23 20:40 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Nathan Bossart @ 2025-06-23 20:40 UTC (permalink / raw)

---
 src/backend/commands/vacuum.c       | 30 +++++++++++++++++++----------
 src/backend/postmaster/autovacuum.c |  2 +-
 src/include/commands/vacuum.h       |  2 ++
 3 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c
index 0015b9ef4b0..a74c3a9e2a2 100644
--- a/src/backend/commands/vacuum.c
+++ b/src/backend/commands/vacuum.c
@@ -124,7 +124,7 @@ static void vac_truncate_clog(TransactionId frozenXID,
 							  TransactionId lastSaneFrozenXid,
 							  MultiXactId lastSaneMinMulti);
 static bool vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
-					   BufferAccessStrategy bstrategy);
+					   BufferAccessStrategy bstrategy, StdRdOptions *main_opts);
 static double compute_parallel_delay(void);
 static VacOptValue get_vacoptval_from_boolean(DefElem *def);
 static bool vac_tid_reaped(ItemPointer itemptr, void *state);
@@ -634,7 +634,7 @@ vacuum(List *relations, VacuumParams *params, BufferAccessStrategy bstrategy,
 
 			if (params->options & VACOPT_VACUUM)
 			{
-				if (!vacuum_rel(vrel->oid, vrel->relation, params, bstrategy))
+				if (!vacuum_rel(vrel->oid, vrel->relation, params, bstrategy, NULL))
 					continue;
 			}
 
@@ -1998,7 +1998,7 @@ vac_truncate_clog(TransactionId frozenXID,
  */
 static bool
 vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
-		   BufferAccessStrategy bstrategy)
+		   BufferAccessStrategy bstrategy, StdRdOptions *main_opts)
 {
 	LOCKMODE	lmode;
 	Relation	rel;
@@ -2008,6 +2008,8 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
 	Oid			save_userid;
 	int			save_sec_context;
 	int			save_nestlevel;
+	StdRdOptions saved_opts;
+	StdRdOptions combined_opts;
 
 	Assert(params != NULL);
 
@@ -2165,6 +2167,15 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
 	lockrelid = rel->rd_lockInfo.lockRelId;
 	LockRelationIdForSession(&lockrelid, lmode);
 
+	if (rel->rd_options)
+	{
+		memcpy(&saved_opts, rel->rd_options, sizeof(StdRdOptions));
+		memcpy(&combined_opts, rel->rd_options, sizeof(StdRdOptions));
+
+		if (main_opts)
+			combine_relopts(&combined_opts, main_opts);
+	}
+
 	/*
 	 * Set index_cleanup option based on index_cleanup reloption if it wasn't
 	 * specified in VACUUM command, or when running in an autovacuum worker
@@ -2176,8 +2187,7 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
 		if (rel->rd_options == NULL)
 			vacuum_index_cleanup = STDRD_OPTION_VACUUM_INDEX_CLEANUP_AUTO;
 		else
-			vacuum_index_cleanup =
-				((StdRdOptions *) rel->rd_options)->vacuum_index_cleanup;
+			vacuum_index_cleanup = combined_opts.vacuum_index_cleanup;
 
 		if (vacuum_index_cleanup == STDRD_OPTION_VACUUM_INDEX_CLEANUP_AUTO)
 			params->index_cleanup = VACOPTVALUE_AUTO;
@@ -2197,9 +2207,9 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
 	 */
 	if (params->max_eager_freeze_failure_rate < 0 &&
 		rel->rd_options != NULL &&
-		((StdRdOptions *) rel->rd_options)->vacuum_max_eager_freeze_failure_rate >= 0)
+		combined_opts.vacuum_max_eager_freeze_failure_rate >= 0)
 		params->max_eager_freeze_failure_rate =
-			((StdRdOptions *) rel->rd_options)->vacuum_max_eager_freeze_failure_rate;
+			combined_opts.vacuum_max_eager_freeze_failure_rate;
 	else
 		params->max_eager_freeze_failure_rate = vacuum_max_eager_freeze_failure_rate;
 
@@ -2211,9 +2221,9 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
 	{
 		StdRdOptions *opts = (StdRdOptions *) rel->rd_options;
 
-		if (opts && opts->vacuum_truncate_set)
+		if (opts && combined_opts.vacuum_truncate_set)
 		{
-			if (opts->vacuum_truncate)
+			if (combined_opts.vacuum_truncate)
 				params->truncate = VACOPTVALUE_ENABLED;
 			else
 				params->truncate = VACOPTVALUE_DISABLED;
@@ -2314,7 +2324,7 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams *params,
 		toast_vacuum_params.options |= VACOPT_PROCESS_MAIN;
 		toast_vacuum_params.toast_parent = relid;
 
-		vacuum_rel(toast_relid, NULL, &toast_vacuum_params, bstrategy);
+		vacuum_rel(toast_relid, NULL, &toast_vacuum_params, bstrategy, &saved_opts);
 	}
 
 	/*
diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c
index 0d1f4e38b58..ca399b6a92e 100644
--- a/src/backend/postmaster/autovacuum.c
+++ b/src/backend/postmaster/autovacuum.c
@@ -1873,7 +1873,7 @@ get_database_list(void)
 	return dblist;
 }
 
-static void
+void
 combine_relopts(StdRdOptions *toast_opts, const StdRdOptions *main_opts)
 {
 	AutoVacOpts *toast_avopts = &toast_opts->autovacuum;
diff --git a/src/include/commands/vacuum.h b/src/include/commands/vacuum.h
index bc37a80dc74..928f864581b 100644
--- a/src/include/commands/vacuum.h
+++ b/src/include/commands/vacuum.h
@@ -24,6 +24,7 @@
 #include "parser/parse_node.h"
 #include "storage/buf.h"
 #include "storage/lock.h"
+#include "utils/rel.h"
 #include "utils/relcache.h"
 
 /*
@@ -377,6 +378,7 @@ extern IndexBulkDeleteResult *vac_cleanup_one_index(IndexVacuumInfo *ivinfo,
 /* In postmaster/autovacuum.c */
 extern void AutoVacuumUpdateCostLimit(void);
 extern void VacuumUpdateCosts(void);
+extern void combine_relopts(StdRdOptions *toast_opts, const StdRdOptions *main_opts);
 
 /* in commands/vacuumparallel.c */
 extern ParallelVacuumState *parallel_vacuum_init(Relation rel, Relation *indrels,
-- 
2.39.5 (Apple Git-154)


--QWBYbd5Ar5k8NvSv--





^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread

* [PATCH 2/8] Move functions to repack.c.
@ 2026-06-16 11:54 Antonin Houska <[email protected]>
  0 siblings, 0 replies; 152+ messages in thread

From: Antonin Houska @ 2026-06-16 11:54 UTC (permalink / raw)

In the next patches, the functions will be called from other modules. Use a
separate diff for the move so that the following diffs are a bit easier to
read.
---
 src/backend/access/heap/heapam_handler.c | 97 +-----------------------
 src/backend/commands/repack.c            | 91 ++++++++++++++++++++++
 src/include/commands/repack.h            |  7 ++
 3 files changed, 99 insertions(+), 96 deletions(-)

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 127d4415084..2866a5e696e 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -34,6 +34,7 @@
 #include "catalog/storage.h"
 #include "catalog/storage_xlog.h"
 #include "commands/progress.h"
+#include "commands/repack.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
 #include "pgstat.h"
@@ -50,11 +51,6 @@
 
 static void reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 									 RewriteState rwstate);
-static void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
-								   TupleTableSlot *reform,
-								   BulkInsertStateData *bistate);
-static bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
-static void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 
 static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer,
 								   HeapTuple tuple,
@@ -2382,97 +2378,6 @@ reform_and_rewrite_tuple(TupleTableSlot *src, TupleTableSlot *reform,
 		heap_freetuple(newtuple);
 }
 
-/*
- * 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.
- *
- * 'reform' is a slot to use for tuple "reforming", typically to get set
- * values of dropped columns to NULL.
- *
- * 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(Relation rel, TupleTableSlot *src,
-					   TupleTableSlot *reform, BulkInsertStateData *bistate)
-{
-	HeapTuple	tuple;
-	bool		shouldFree;
-	TupleTableSlot *slot;
-
-	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
-	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
-	{
-		clear_dropped_attributes(tuple, reform);
-		slot = reform;
-	}
-	else
-		slot = src;
-
-	/*
-	 * clear_dropped_attributes() should have deformed the tuple, so nothing
-	 * should depend on it now.
-	 */
-	if (shouldFree)
-		heap_freetuple(tuple);
-
-	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
-					   TABLE_INSERT_NO_LOGICAL, bistate);
-}
-
-static bool
-tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
-{
-	/*
-	 * A short tuple might require values from attmissing val, so activate the
-	 * coding unconditionally in that case.  The value might legitimally be
-	 * NULL otherwise, so this is slightly wasteful, but it probably beats
-	 * having to test each attribute for presence of attmissingval each time.
-	 */
-	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
-		return true;
-
-	/* Does it have dropped attributes? */
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
-			!heap_attisnull(tuple, i + 1, tupDesc))
-			return true;
-	}
-
-	return false;
-}
-
-/*
- * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
- *
- * Set values of dropped columns to NULL,
- */
-static void
-clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
-{
-	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
-
-	/* Assuming 'reform' is virtual, this deforms the tuple. */
-	Assert(TTS_IS_VIRTUAL(reform));
-	ExecForceStoreHeapTuple(tuple, reform, false);
-
-	for (int i = 0; i < tupDesc->natts; i++)
-	{
-		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
-			reform->tts_isnull[i] = true;
-	}
-}
-
 /*
  * Check visibility of the tuple.
  */
diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index ec100e3eef5..fa98b8b9247 100644
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -1268,6 +1268,97 @@ make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 	return OIDNewHeap;
 }
 
+/*
+ * 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.
+ *
+ * 'reform' is a slot to use for tuple "reforming", typically to get set
+ * values of dropped columns to NULL.
+ *
+ * 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.
+ */
+void
+heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+					   TupleTableSlot *reform, BulkInsertStateData *bistate)
+{
+	HeapTuple	tuple;
+	bool		shouldFree;
+	TupleTableSlot *slot;
+
+	tuple = ExecFetchSlotHeapTuple(src, false, &shouldFree);
+	if (tuple_needs_reform(tuple, src->tts_tupleDescriptor))
+	{
+		clear_dropped_attributes(tuple, reform);
+		slot = reform;
+	}
+	else
+		slot = src;
+
+	/*
+	 * clear_dropped_attributes() should have deformed the tuple, so nothing
+	 * should depend on it now.
+	 */
+	if (shouldFree)
+		heap_freetuple(tuple);
+
+	table_tuple_insert(rel, slot, GetCurrentCommandId(true),
+					   TABLE_INSERT_NO_LOGICAL, bistate);
+}
+
+bool
+tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc)
+{
+	/*
+	 * A short tuple might require values from attmissing val, so activate the
+	 * coding unconditionally in that case.  The value might legitimally be
+	 * NULL otherwise, so this is slightly wasteful, but it probably beats
+	 * having to test each attribute for presence of attmissingval each time.
+	 */
+	if (HeapTupleHeaderGetNatts(tuple->t_data) < tupDesc->natts)
+		return true;
+
+	/* Does it have dropped attributes? */
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped &&
+			!heap_attisnull(tuple, i + 1, tupDesc))
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Subroutine for reform_and_rewrite_tuple and heap_insert_for_repack.
+ *
+ * Set values of dropped columns to NULL,
+ */
+void
+clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform)
+{
+	TupleDesc	tupDesc = reform->tts_tupleDescriptor;
+
+	/* Assuming 'reform' is virtual, this deforms the tuple. */
+	Assert(TTS_IS_VIRTUAL(reform));
+	ExecForceStoreHeapTuple(tuple, reform, false);
+
+	for (int i = 0; i < tupDesc->natts; i++)
+	{
+		if (TupleDescCompactAttr(tupDesc, i)->attisdropped)
+			reform->tts_isnull[i] = true;
+	}
+}
+
 /*
  * Do the physical copying of table data.
  *
diff --git a/src/include/commands/repack.h b/src/include/commands/repack.h
index 45e5440a311..27105c10591 100644
--- a/src/include/commands/repack.h
+++ b/src/include/commands/repack.h
@@ -15,6 +15,8 @@
 
 #include <signal.h>
 
+#include "access/hio.h"
+#include "nodes/execnodes.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
 #include "storage/lockdefs.h"
@@ -48,6 +50,11 @@ extern void mark_index_clustered(Relation rel, Oid indexOid, bool is_internal);
 
 extern Oid	make_new_heap(Oid OIDOldHeap, Oid NewTableSpace, Oid NewAccessMethod,
 						  char relpersistence, LOCKMODE lockmode);
+extern void heap_insert_for_repack(Relation rel, TupleTableSlot *src,
+								   TupleTableSlot *reform,
+								   BulkInsertStateData *bistate);
+extern bool tuple_needs_reform(HeapTuple tuple, TupleDesc tupDesc);
+extern void clear_dropped_attributes(HeapTuple tuple, TupleTableSlot *reform);
 extern void finish_heap_swap(Oid OIDOldHeap, Oid OIDNewHeap,
 							 bool is_system_catalog,
 							 bool swap_toast_by_content,
-- 
2.52.0


--=-=-=
Content-Type: text/x-diff
Content-Disposition: attachment;
 filename=v01-0003-Introduce-RepackDest-structure.patch



^ permalink  raw  reply  [nested|flat] 152+ messages in thread