0003_warm_fixes_v6.patch

diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c
index b3de79c..9353175 100644
--- a/src/backend/access/heap/heapam.c
+++ b/src/backend/access/heap/heapam.c
@@ -7831,7 +7831,7 @@ log_heap_update(Relation reln, Buffer oldbuf,
 	bool		need_tuple_data = RelationIsLogicallyLogged(reln);
 	bool		init;
 	int			bufflags;
-	bool		warm_update;
+	bool		warm_update = false;
 
 	/* Caller should not call me on a non-WAL-logged relation */
 	Assert(RelationNeedsWAL(reln));
diff --git a/src/backend/access/heap/hio.c b/src/backend/access/heap/hio.c
index e32deb1..39ee6ac 100644
--- a/src/backend/access/heap/hio.c
+++ b/src/backend/access/heap/hio.c
@@ -75,6 +75,9 @@ RelationPutHeapTuple(Relation relation,
 		ItemId		itemId = PageGetItemId(pageHeader, offnum);
 		Item		item = PageGetItem(pageHeader, itemId);
 
+		/* Copy t_ctid to set the correct block number */
+		((HeapTupleHeader) item)->t_ctid = tuple->t_self;
+
 		HeapTupleHeaderSetHeapLatest((HeapTupleHeader) item);
 		if (OffsetNumberIsValid(root_offnum))
 			HeapTupleHeaderSetRootOffset((HeapTupleHeader) item,
diff --git a/src/backend/executor/execIndexing.c b/src/backend/executor/execIndexing.c
index 03c6b62..c24e486 100644
--- a/src/backend/executor/execIndexing.c
+++ b/src/backend/executor/execIndexing.c
@@ -801,7 +801,8 @@ retry:
 			  DirtySnapshot.speculativeToken &&
 			  TransactionIdPrecedes(GetCurrentTransactionId(), xwait))))
 		{
-			ctid_wait = tup->t_data->t_ctid;
+			HeapTupleHeaderGetNextCtid(tup->t_data, &ctid_wait,
+					ItemPointerGetOffsetNumber(&tup->t_self));
 			reason_wait = indexInfo->ii_ExclusionOps ?
 				XLTW_RecheckExclusionConstr : XLTW_InsertIndex;
 			index_endscan(index_scan);
diff --git a/src/backend/executor/execMain.c b/src/backend/executor/execMain.c
index 079a77f..466609c 100644
--- a/src/backend/executor/execMain.c
+++ b/src/backend/executor/execMain.c
@@ -2451,7 +2451,8 @@ EvalPlanQualFetch(EState *estate, Relation relation, int lockmode,
 		}
 
 		/* updated, so look at the updated row */
-		tuple.t_self = tuple.t_data->t_ctid;
+		HeapTupleHeaderGetNextCtid(tuple.t_data, &tuple.t_self,
+				ItemPointerGetOffsetNumber(&tuple.t_self));
 		/* updated row should have xmin matching this xmax */
 		priorXmax = HeapTupleHeaderGetUpdateXid(tuple.t_data);
 		ReleaseBuffer(buffer);
diff --git a/src/backend/utils/adt/pgstatfuncs.c b/src/backend/utils/adt/pgstatfuncs.c
index 25752b0..ef4f5b4 100644
--- a/src/backend/utils/adt/pgstatfuncs.c
+++ b/src/backend/utils/adt/pgstatfuncs.c
@@ -37,6 +37,7 @@ extern Datum pg_stat_get_tuples_inserted(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_tuples_updated(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_tuples_deleted(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_tuples_hot_updated(PG_FUNCTION_ARGS);
+extern Datum pg_stat_get_tuples_warm_updated(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_live_tuples(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_dead_tuples(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_mod_since_analyze(PG_FUNCTION_ARGS);
diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c
index 37874ca..c6ef4e2 100644
--- a/src/backend/utils/cache/relcache.c
+++ b/src/backend/utils/cache/relcache.c
@@ -4487,6 +4487,12 @@ RelationGetIndexAttrBitmap(Relation relation, IndexAttrBitmapKind attrKind)
 		pull_varattnos((Node *) indexInfo->ii_Predicate, 1, &exprindexattrs);
 
 		/*
+		 * indexattrs should include attributes referenced in index expressions
+		 * and predicates too
+		 */
+		indexattrs = bms_add_members(indexattrs, exprindexattrs);
+
+		/*
 		 * Check if the index has amrecheck method defined. If the method is
 		 * not defined, the index does not support WARM update. Completely
 		 * disable WARM updates on such tables