Pass down table relation into more index relation functions

This is done in preparation for logical decoding on standby, which needs to
include whether visibility affecting WAL records are about a (user) catalog
table. Which is only known for the table, not the indexes.

It's also nice to be able to pass the heap relation to GlobalVisTestFor() in
vacuumRedirectAndPlaceholder().

Author: "Drouvot, Bertrand" <bertranddrouvot.pg@gmail.com>
Discussion: https://postgr.es/m/21b700c3-eecf-2e05-a699-f8c78dd31ec7@gmail.com

15 files changed, 164 insertions, 139 deletions

diff --git a/src/backend/access/gist/gist.c b/src/backend/access/gist/gist.c
index ea72bcce1bc..c3a3d49bca0 100644
--- a/src/backend/access/gist/gist.c
+++ b/src/backend/access/gist/gist.c
@@ -349,7 +349,7 @@ gistplacetopage(Relation rel, Size freespace, GISTSTATE *giststate,
 		for (; ptr; ptr = ptr->next)
 		{
 			/* Allocate new page */
-			ptr->buffer = gistNewBuffer(rel);
+			ptr->buffer = gistNewBuffer(rel, heapRel);
 			GISTInitBuffer(ptr->buffer, (is_leaf) ? F_LEAF : 0);
 			ptr->page = BufferGetPage(ptr->buffer);
 			ptr->block.blkno = BufferGetBlockNumber(ptr->buffer);
@@ -1695,7 +1695,8 @@ gistprunepage(Relation rel, Page page, Buffer buffer, Relation heapRel)
 
 			recptr = gistXLogDelete(buffer,
 									deletable, ndeletable,
-									snapshotConflictHorizon);
+									snapshotConflictHorizon,
+									heapRel);
 
 			PageSetLSN(page, recptr);
 		}
diff --git a/src/backend/access/gist/gistbuild.c b/src/backend/access/gist/gistbuild.c
index 57fe553a5c9..d2f8da5b026 100644
--- a/src/backend/access/gist/gistbuild.c
+++ b/src/backend/access/gist/gistbuild.c
@@ -298,7 +298,7 @@ gistbuild(Relation heap, Relation index, IndexInfo *indexInfo)
 		Page		page;
 
 		/* initialize the root page */
-		buffer = gistNewBuffer(index);
+		buffer = gistNewBuffer(index, heap);
 		Assert(BufferGetBlockNumber(buffer) == GIST_ROOT_BLKNO);
 		page = BufferGetPage(buffer);
 
diff --git a/src/backend/access/gist/gistutil.c b/src/backend/access/gist/gistutil.c
index b4d843a0ff1..a607464b979 100644
--- a/src/backend/access/gist/gistutil.c
+++ b/src/backend/access/gist/gistutil.c
@@ -821,7 +821,7 @@ gistcheckpage(Relation rel, Buffer buf)
  * Caller is responsible for initializing the page by calling GISTInitBuffer
  */
 Buffer
-gistNewBuffer(Relation r)
+gistNewBuffer(Relation r, Relation heaprel)
 {
 	Buffer		buffer;
 	bool		needLock;
@@ -865,7 +865,7 @@ gistNewBuffer(Relation r)
 				 * page's deleteXid.
 				 */
 				if (XLogStandbyInfoActive() && RelationNeedsWAL(r))
-					gistXLogPageReuse(r, blkno, GistPageGetDeleteXid(page));
+					gistXLogPageReuse(r, heaprel, blkno, GistPageGetDeleteXid(page));
 
 				return buffer;
 			}
diff --git a/src/backend/access/gist/gistxlog.c b/src/backend/access/gist/gistxlog.c
index f65864254a7..4b52719765f 100644
--- a/src/backend/access/gist/gistxlog.c
+++ b/src/backend/access/gist/gistxlog.c
@@ -597,7 +597,8 @@ gistXLogAssignLSN(void)
  * Write XLOG record about reuse of a deleted page.
  */
 void
-gistXLogPageReuse(Relation rel, BlockNumber blkno, FullTransactionId deleteXid)
+gistXLogPageReuse(Relation rel, Relation heaprel,
+				  BlockNumber blkno, FullTransactionId deleteXid)
 {
 	gistxlogPageReuse xlrec_reuse;
 
@@ -672,7 +673,7 @@ gistXLogUpdate(Buffer buffer,
  */
 XLogRecPtr
 gistXLogDelete(Buffer buffer, OffsetNumber *todelete, int ntodelete,
-			   TransactionId snapshotConflictHorizon)
+			   TransactionId snapshotConflictHorizon, Relation heaprel)
 {
 	gistxlogDelete xlrec;
 	XLogRecPtr	recptr;
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c
index 8abc101c8cb..9662e382549 100644
--- a/src/backend/access/heap/heapam.c
+++ b/src/backend/access/heap/heapam.c
@@ -8268,7 +8268,7 @@ bottomup_sort_and_shrink(TM_IndexDeleteOp *delstate)
  * update the heap page's LSN.
  */
 XLogRecPtr
-log_heap_visible(RelFileLocator rlocator, Buffer heap_buffer, Buffer vm_buffer,
+log_heap_visible(Relation rel, Buffer heap_buffer, Buffer vm_buffer,
 				 TransactionId snapshotConflictHorizon, uint8 vmflags)
 {
 	xl_heap_visible xlrec;
diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index 9e690074e94..97b5daee920 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -822,9 +822,14 @@ heapam_relation_copy_for_cluster(Relation OldHeap, Relation NewHeap,
 								 *multi_cutoff);
 
 
-	/* Set up sorting if wanted */
+	/*
+	 * Set up sorting if wanted. NewHeap is being passed to
+	 * tuplesort_begin_cluster(), it could have been OldHeap too. It does not
+	 * really matter, as the goal is to have a heap relation being passed to
+	 * _bt_log_reuse_page() (which should not be called from this code path).
+	 */
 	if (use_sort)
-		tuplesort = tuplesort_begin_cluster(oldTupDesc, OldIndex,
+		tuplesort = tuplesort_begin_cluster(oldTupDesc, OldIndex, NewHeap,
 											maintenance_work_mem,
 											NULL, TUPLESORT_NONE);
 	else
diff --git a/src/backend/access/heap/vacuumlazy.c b/src/backend/access/heap/vacuumlazy.c
index 8f14cf85f38..ae628d747dc 100644
--- a/src/backend/access/heap/vacuumlazy.c
+++ b/src/backend/access/heap/vacuumlazy.c
@@ -2710,6 +2710,7 @@ lazy_vacuum_one_index(Relation indrel, IndexBulkDeleteResult *istat,
 	ivinfo.message_level = DEBUG2;
 	ivinfo.num_heap_tuples = reltuples;
 	ivinfo.strategy = vacrel->bstrategy;
+	ivinfo.heaprel = vacrel->rel;
 
 	/*
 	 * Update error traceback information.
@@ -2759,6 +2760,7 @@ lazy_cleanup_one_index(Relation indrel, IndexBulkDeleteResult *istat,
 
 	ivinfo.num_heap_tuples = reltuples;
 	ivinfo.strategy = vacrel->bstrategy;
+	ivinfo.heaprel = vacrel->rel;
 
 	/*
 	 * Update error traceback information.
diff --git a/src/backend/access/heap/visibilitymap.c b/src/backend/access/heap/visibilitymap.c
index e193682352a..11e6d0d479f 100644
--- a/src/backend/access/heap/visibilitymap.c
+++ b/src/backend/access/heap/visibilitymap.c
@@ -288,8 +288,7 @@ visibilitymap_set(Relation rel, BlockNumber heapBlk, Buffer heapBuf,
 			if (XLogRecPtrIsInvalid(recptr))
 			{
 				Assert(!InRecovery);
-				recptr = log_heap_visible(rel->rd_locator, heapBuf, vmBuf,
-										  cutoff_xid, flags);
+				recptr = log_heap_visible(rel, heapBuf, vmBuf, cutoff_xid, flags);
 
 				/*
 				 * If data checksums are enabled (or wal_log_hints=on), we
diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index f4c1a974ef8..8c6e867c619 100644
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -30,7 +30,8 @@
 #define BTREE_FASTPATH_MIN_LEVEL	2
 
 
-static BTStack _bt_search_insert(Relation rel, BTInsertState insertstate);
+static BTStack _bt_search_insert(Relation rel, Relation heaprel,
+								 BTInsertState insertstate);
 static TransactionId _bt_check_unique(Relation rel, BTInsertState insertstate,
 									  Relation heapRel,
 									  IndexUniqueCheck checkUnique, bool *is_unique,
@@ -41,8 +42,9 @@ static OffsetNumber _bt_findinsertloc(Relation rel,
 									  bool indexUnchanged,
 									  BTStack stack,
 									  Relation heapRel);
-static void _bt_stepright(Relation rel, BTInsertState insertstate, BTStack stack);
-static void _bt_insertonpg(Relation rel, BTScanInsert itup_key,
+static void _bt_stepright(Relation rel, Relation heaprel,
+						  BTInsertState insertstate, BTStack stack);
+static void _bt_insertonpg(Relation rel, Relation heaprel, BTScanInsert itup_key,
 						   Buffer buf,
 						   Buffer cbuf,
 						   BTStack stack,
@@ -51,13 +53,13 @@ static void _bt_insertonpg(Relation rel, BTScanInsert itup_key,
 						   OffsetNumber newitemoff,
 						   int postingoff,
 						   bool split_only_page);
-static Buffer _bt_split(Relation rel, BTScanInsert itup_key, Buffer buf,
-						Buffer cbuf, OffsetNumber newitemoff, Size newitemsz,
-						IndexTuple newitem, IndexTuple orignewitem,
+static Buffer _bt_split(Relation rel, Relation heaprel, BTScanInsert itup_key,
+						Buffer buf, Buffer cbuf, OffsetNumber newitemoff,
+						Size newitemsz, IndexTuple newitem, IndexTuple orignewitem,
 						IndexTuple nposting, uint16 postingoff);
-static void _bt_insert_parent(Relation rel, Buffer buf, Buffer rbuf,
-							  BTStack stack, bool isroot, bool isonly);
-static Buffer _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf);
+static void _bt_insert_parent(Relation rel, Relation heaprel, Buffer buf,
+							  Buffer rbuf, BTStack stack, bool isroot, bool isonly);
+static Buffer _bt_newroot(Relation rel, Relation heaprel, Buffer lbuf, Buffer rbuf);
 static inline bool _bt_pgaddtup(Page page, Size itemsize, IndexTuple itup,
 								OffsetNumber itup_off, bool newfirstdataitem);
 static void _bt_delete_or_dedup_one_page(Relation rel, Relation heapRel,
@@ -108,7 +110,7 @@ _bt_doinsert(Relation rel, IndexTuple itup,
 	bool		checkingunique = (checkUnique != UNIQUE_CHECK_NO);
 
 	/* we need an insertion scan key to do our search, so build one */
-	itup_key = _bt_mkscankey(rel, itup);
+	itup_key = _bt_mkscankey(rel, heapRel, itup);
 
 	if (checkingunique)
 	{
@@ -162,7 +164,7 @@ search:
 	 * searching from the root page.  insertstate.buf will hold a buffer that
 	 * is locked in exclusive mode afterwards.
 	 */
-	stack = _bt_search_insert(rel, &insertstate);
+	stack = _bt_search_insert(rel, heapRel, &insertstate);
 
 	/*
 	 * checkingunique inserts are not allowed to go ahead when two tuples with
@@ -255,8 +257,8 @@ search:
 		 */
 		newitemoff = _bt_findinsertloc(rel, &insertstate, checkingunique,
 									   indexUnchanged, stack, heapRel);
-		_bt_insertonpg(rel, itup_key, insertstate.buf, InvalidBuffer, stack,
-					   itup, insertstate.itemsz, newitemoff,
+		_bt_insertonpg(rel, heapRel, itup_key, insertstate.buf, InvalidBuffer,
+					   stack, itup, insertstate.itemsz, newitemoff,
 					   insertstate.postingoff, false);
 	}
 	else
@@ -312,7 +314,7 @@ search:
  * since each per-backend cache won't stay valid for long.
  */
 static BTStack
-_bt_search_insert(Relation rel, BTInsertState insertstate)
+_bt_search_insert(Relation rel, Relation heaprel, BTInsertState insertstate)
 {
 	Assert(insertstate->buf == InvalidBuffer);
 	Assert(!insertstate->bounds_valid);
@@ -375,8 +377,8 @@ _bt_search_insert(Relation rel, BTInsertState insertstate)
 	}
 
 	/* Cannot use optimization -- descend tree, return proper descent stack */
-	return _bt_search(rel, insertstate->itup_key, &insertstate->buf, BT_WRITE,
-					  NULL);
+	return _bt_search(rel, heaprel, insertstate->itup_key, &insertstate->buf,
+					  BT_WRITE, NULL);
 }
 
 /*
@@ -885,7 +887,7 @@ _bt_findinsertloc(Relation rel,
 					_bt_compare(rel, itup_key, page, P_HIKEY) <= 0)
 					break;
 
-				_bt_stepright(rel, insertstate, stack);
+				_bt_stepright(rel, heapRel, insertstate, stack);
 				/* Update local state after stepping right */
 				page = BufferGetPage(insertstate->buf);
 				opaque = BTPageGetOpaque(page);
@@ -969,7 +971,7 @@ _bt_findinsertloc(Relation rel,
 				pg_prng_uint32(&pg_global_prng_state) <= (PG_UINT32_MAX / 100))
 				break;
 
-			_bt_stepright(rel, insertstate, stack);
+			_bt_stepright(rel, heapRel, insertstate, stack);
 			/* Update local state after stepping right */
 			page = BufferGetPage(insertstate->buf);
 			opaque = BTPageGetOpaque(page);
@@ -1022,7 +1024,7 @@ _bt_findinsertloc(Relation rel,
  * indexes.
  */
 static void
-_bt_stepright(Relation rel, BTInsertState insertstate, BTStack stack)
+_bt_stepright(Relation rel, Relation heaprel, BTInsertState insertstate, BTStack stack)
 {
 	Page		page;
 	BTPageOpaque opaque;
@@ -1048,7 +1050,7 @@ _bt_stepright(Relation rel, BTInsertState insertstate, BTStack stack)
 		 */
 		if (P_INCOMPLETE_SPLIT(opaque))
 		{
-			_bt_finish_split(rel, rbuf, stack);
+			_bt_finish_split(rel, heaprel, rbuf, stack);
 			rbuf = InvalidBuffer;
 			continue;
 		}
@@ -1099,6 +1101,7 @@ _bt_stepright(Relation rel, BTInsertState insertstate, BTStack stack)
  */
 static void
 _bt_insertonpg(Relation rel,
+			   Relation heaprel,
 			   BTScanInsert itup_key,
 			   Buffer buf,
 			   Buffer cbuf,
@@ -1209,8 +1212,8 @@ _bt_insertonpg(Relation rel,
 		Assert(!split_only_page);
 
 		/* split the buffer into left and right halves */
-		rbuf = _bt_split(rel, itup_key, buf, cbuf, newitemoff, itemsz, itup,
-						 origitup, nposting, postingoff);
+		rbuf = _bt_split(rel, heaprel, itup_key, buf, cbuf, newitemoff, itemsz,
+						 itup, origitup, nposting, postingoff);
 		PredicateLockPageSplit(rel,
 							   BufferGetBlockNumber(buf),
 							   BufferGetBlockNumber(rbuf));
@@ -1233,7 +1236,7 @@ _bt_insertonpg(Relation rel,
 		 * page.
 		 *----------
 		 */
-		_bt_insert_parent(rel, buf, rbuf, stack, isroot, isonly);
+		_bt_insert_parent(rel, heaprel, buf, rbuf, stack, isroot, isonly);
 	}
 	else
 	{
@@ -1254,7 +1257,7 @@ _bt_insertonpg(Relation rel,
 			Assert(!isleaf);
 			Assert(BufferIsValid(cbuf));
 
-			metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_WRITE);
+			metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_WRITE);
 			metapg = BufferGetPage(metabuf);
 			metad = BTPageGetMeta(metapg);
 
@@ -1418,7 +1421,7 @@ _bt_insertonpg(Relation rel,
 		 * call _bt_getrootheight while holding a buffer lock.
 		 */
 		if (BlockNumberIsValid(blockcache) &&
-			_bt_getrootheight(rel) >= BTREE_FASTPATH_MIN_LEVEL)
+			_bt_getrootheight(rel, heaprel) >= BTREE_FASTPATH_MIN_LEVEL)
 			RelationSetTargetBlock(rel, blockcache);
 	}
 
@@ -1459,8 +1462,8 @@ _bt_insertonpg(Relation rel,
  *		The pin and lock on buf are maintained.
  */
 static Buffer
-_bt_split(Relation rel, BTScanInsert itup_key, Buffer buf, Buffer cbuf,
-		  OffsetNumber newitemoff, Size newitemsz, IndexTuple newitem,
+_bt_split(Relation rel, Relation heaprel, BTScanInsert itup_key, Buffer buf,
+		  Buffer cbuf, OffsetNumber newitemoff, Size newitemsz, IndexTuple newitem,
 		  IndexTuple orignewitem, IndexTuple nposting, uint16 postingoff)
 {
 	Buffer		rbuf;
@@ -1712,7 +1715,7 @@ _bt_split(Relation rel, BTScanInsert itup_key, Buffer buf, Buffer cbuf,
 	 * way because it avoids an unnecessary PANIC when either origpage or its
 	 * existing sibling page are corrupt.
 	 */
-	rbuf = _bt_getbuf(rel, P_NEW, BT_WRITE);
+	rbuf = _bt_getbuf(rel, heaprel, P_NEW, BT_WRITE);
 	rightpage = BufferGetPage(rbuf);
 	rightpagenumber = BufferGetBlockNumber(rbuf);
 	/* rightpage was initialized by _bt_getbuf */
@@ -1885,7 +1888,7 @@ _bt_split(Relation rel, BTScanInsert itup_key, Buffer buf, Buffer cbuf,
 	 */
 	if (!isrightmost)
 	{
-		sbuf = _bt_getbuf(rel, oopaque->btpo_next, BT_WRITE);
+		sbuf = _bt_getbuf(rel, heaprel, oopaque->btpo_next, BT_WRITE);
 		spage = BufferGetPage(sbuf);
 		sopaque = BTPageGetOpaque(spage);
 		if (sopaque->btpo_prev != origpagenumber)
@@ -2092,6 +2095,7 @@ _bt_split(Relation rel, BTScanInsert itup_key, Buffer buf, Buffer cbuf,
  */
 static void
 _bt_insert_parent(Relation rel,
+				  Relation heaprel,
 				  Buffer buf,
 				  Buffer rbuf,
 				  BTStack stack,
@@ -2118,7 +2122,7 @@ _bt_insert_parent(Relation rel,
 		Assert(stack == NULL);
 		Assert(isonly);
 		/* create a new root node and update the metapage */
-		rootbuf = _bt_newroot(rel, buf, rbuf);
+		rootbuf = _bt_newroot(rel, heaprel, buf, rbuf);
 		/* release the split buffers */
 		_bt_relbuf(rel, rootbuf);
 		_bt_relbuf(rel, rbuf);
@@ -2157,7 +2161,8 @@ _bt_insert_parent(Relation rel,
 					 BlockNumberIsValid(RelationGetTargetBlock(rel))));
 
 			/* Find the leftmost page at the next level up */
-			pbuf = _bt_get_endpoint(rel, opaque->btpo_level + 1, false, NULL);
+			pbuf = _bt_get_endpoint(rel, heaprel, opaque->btpo_level + 1, false,
+									NULL);
 			/* Set up a phony stack entry pointing there */
 			stack = &fakestack;
 			stack->bts_blkno = BufferGetBlockNumber(pbuf);
@@ -2183,7 +2188,7 @@ _bt_insert_parent(Relation rel,
 		 * new downlink will be inserted at the correct offset. Even buf's
 		 * parent may have changed.
 		 */
-		pbuf = _bt_getstackbuf(rel, stack, bknum);
+		pbuf = _bt_getstackbuf(rel, heaprel, stack, bknum);
 
 		/*
 		 * Unlock the right child.  The left child will be unlocked in
@@ -2207,7 +2212,7 @@ _bt_insert_parent(Relation rel,
 									 RelationGetRelationName(rel), bknum, rbknum)));
 
 		/* Recursively insert into the parent */
-		_bt_insertonpg(rel, NULL, pbuf, buf, stack->bts_parent,
+		_bt_insertonpg(rel, heaprel, NULL, pbuf, buf, stack->bts_parent,
 					   new_item, MAXALIGN(IndexTupleSize(new_item)),
 					   stack->bts_offset + 1, 0, isonly);
 
@@ -2227,7 +2232,7 @@ _bt_insert_parent(Relation rel,
  * and unpinned.
  */
 void
-_bt_finish_split(Relation rel, Buffer lbuf, BTStack stack)
+_bt_finish_split(Relation rel, Relation heaprel, Buffer lbuf, BTStack stack)
 {
 	Page		lpage = BufferGetPage(lbuf);
 	BTPageOpaque lpageop = BTPageGetOpaque(lpage);
@@ -2240,7 +2245,7 @@ _bt_finish_split(Relation rel, Buffer lbuf, BTStack stack)
 	Assert(P_INCOMPLETE_SPLIT(lpageop));
 
 	/* Lock right sibling, the one missing the downlink */
-	rbuf = _bt_getbuf(rel, lpageop->btpo_next, BT_WRITE);
+	rbuf = _bt_getbuf(rel, heaprel, lpageop->btpo_next, BT_WRITE);
 	rpage = BufferGetPage(rbuf);
 	rpageop = BTPageGetOpaque(rpage);
 
@@ -2252,7 +2257,7 @@ _bt_finish_split(Relation rel, Buffer lbuf, BTStack stack)
 		BTMetaPageData *metad;
 
 		/* acquire lock on the metapage */
-		metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_WRITE);
+		metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_WRITE);
 		metapg = BufferGetPage(metabuf);
 		metad = BTPageGetMeta(metapg);
 
@@ -2269,7 +2274,7 @@ _bt_finish_split(Relation rel, Buffer lbuf, BTStack stack)
 	elog(DEBUG1, "finishing incomplete split of %u/%u",
 		 BufferGetBlockNumber(lbuf), BufferGetBlockNumber(rbuf));
 
-	_bt_insert_parent(rel, lbuf, rbuf, stack, wasroot, wasonly);
+	_bt_insert_parent(rel, heaprel, lbuf, rbuf, stack, wasroot, wasonly);
 }
 
 /*
@@ -2304,7 +2309,7 @@ _bt_finish_split(Relation rel, Buffer lbuf, BTStack stack)
  *		offset number bts_offset + 1.
  */
 Buffer
-_bt_getstackbuf(Relation rel, BTStack stack, BlockNumber child)
+_bt_getstackbuf(Relation rel, Relation heaprel, BTStack stack, BlockNumber child)
 {
 	BlockNumber blkno;
 	OffsetNumber start;
@@ -2318,13 +2323,13 @@ _bt_getstackbuf(Relation rel, BTStack stack, BlockNumber child)
 		Page		page;
 		BTPageOpaque opaque;
 
-		buf = _bt_getbuf(rel, blkno, BT_WRITE);
+		buf = _bt_getbuf(rel, heaprel, blkno, BT_WRITE);
 		page = BufferGetPage(buf);
 		opaque = BTPageGetOpaque(page);
 
 		if (P_INCOMPLETE_SPLIT(opaque))
 		{
-			_bt_finish_split(rel, buf, stack->bts_parent);
+			_bt_finish_split(rel, heaprel, buf, stack->bts_parent);
 			continue;
 		}
 
@@ -2428,7 +2433,7 @@ _bt_getstackbuf(Relation rel, BTStack stack, BlockNumber child)
  *		lbuf, rbuf & rootbuf.
  */
 static Buffer
-_bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
+_bt_newroot(Relation rel, Relation heaprel, Buffer lbuf, Buffer rbuf)
 {
 	Buffer		rootbuf;
 	Page		lpage,
@@ -2454,12 +2459,12 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
 	lopaque = BTPageGetOpaque(lpage);
 
 	/* get a new root page */
-	rootbuf = _bt_getbuf(rel, P_NEW, BT_WRITE);
+	rootbuf = _bt_getbuf(rel, heaprel, P_NEW, BT_WRITE);
 	rootpage = BufferGetPage(rootbuf);
 	rootblknum = BufferGetBlockNumber(rootbuf);
 
 	/* acquire lock on the metapage */
-	metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_WRITE);
+	metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_WRITE);
 	metapg = BufferGetPage(metabuf);
 	metad = BTPageGetMeta(metapg);
 
diff --git a/src/backend/access/nbtree/nbtpage.c b/src/backend/access/nbtree/nbtpage.c
index 3feee28d197..ee996b56602 100644
--- a/src/backend/access/nbtree/nbtpage.c
+++ b/src/backend/access/nbtree/nbtpage.c
@@ -38,25 +38,24 @@
 #include "utils/snapmgr.h"
 
 static BTMetaPageData *_bt_getmeta(Relation rel, Buffer metabuf);
-static void _bt_log_reuse_page(Relation rel, BlockNumber blkno,
+static void _bt_log_reuse_page(Relation rel, Relation heaprel, BlockNumber blkno,
 							   FullTransactionId safexid);
-static void _bt_delitems_delete(Relation rel, Buffer buf,
+static void _bt_delitems_delete(Relation rel, Relation heaprel, Buffer buf,
 								TransactionId snapshotConflictHorizon,
 								OffsetNumber *deletable, int ndeletable,
 								BTVacuumPosting *updatable, int nupdatable);
 static char *_bt_delitems_update(BTVacuumPosting *updatable, int nupdatable,
 								 OffsetNumber *updatedoffsets,
 								 Size *updatedbuflen, bool needswal);
-static bool _bt_mark_page_halfdead(Relation rel, Buffer leafbuf,
-								   BTStack stack);
+static bool _bt_mark_page_halfdead(Relation rel, Relation heaprel,
+								   Buffer leafbuf, BTStack stack);
 static bool _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf,
 									 BlockNumber scanblkno,
 									 bool *rightsib_empty,
 									 BTVacState *vstate);
-static bool _bt_lock_subtree_parent(Relation rel, BlockNumber child,
-									BTStack stack,
-									Buffer *subtreeparent,
-									OffsetNumber *poffset,
+static bool _bt_lock_subtree_parent(Relation rel, Relation heaprel,
+									BlockNumber child, BTStack stack,
+									Buffer *subtreeparent, OffsetNumber *poffset,
 									BlockNumber *topparent,
 									BlockNumber *topparentrightsib);
 static void _bt_pendingfsm_add(BTVacState *vstate, BlockNumber target,
@@ -178,7 +177,7 @@ _bt_getmeta(Relation rel, Buffer metabuf)
  * index tuples needed to be deleted.
  */
 bool
-_bt_vacuum_needs_cleanup(Relation rel)
+_bt_vacuum_needs_cleanup(Relation rel, Relation heaprel)
 {
 	Buffer		metabuf;
 	Page		metapg;
@@ -191,7 +190,7 @@ _bt_vacuum_needs_cleanup(Relation rel)
 	 *
 	 * Note that we deliberately avoid using cached version of metapage here.
 	 */
-	metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_READ);
+	metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_READ);
 	metapg = BufferGetPage(metabuf);
 	metad = BTPageGetMeta(metapg);
 	btm_version = metad->btm_version;
@@ -231,7 +230,7 @@ _bt_vacuum_needs_cleanup(Relation rel)
  * finalized.
  */
 void
-_bt_set_cleanup_info(Relation rel, BlockNumber num_delpages)
+_bt_set_cleanup_info(Relation rel, Relation heaprel, BlockNumber num_delpages)
 {
 	Buffer		metabuf;
 	Page		metapg;
@@ -255,7 +254,7 @@ _bt_set_cleanup_info(Relation rel, BlockNumber num_delpages)
 	 * no longer used as of PostgreSQL 14.  We set it to -1.0 on rewrite, just
 	 * to be consistent.
 	 */
-	metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_READ);
+	metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_READ);
 	metapg = BufferGetPage(metabuf);
 	metad = BTPageGetMeta(metapg);
 
@@ -340,7 +339,7 @@ _bt_set_cleanup_info(Relation rel, BlockNumber num_delpages)
  *		The metadata page is not locked or pinned on exit.
  */
 Buffer
-_bt_getroot(Relation rel, int access)
+_bt_getroot(Relation rel, Relation heaprel, int access)
 {
 	Buffer		metabuf;
 	Buffer		rootbuf;
@@ -370,7 +369,7 @@ _bt_getroot(Relation rel, int access)
 		Assert(rootblkno != P_NONE);
 		rootlevel = metad->btm_fastlevel;
 
-		rootbuf = _bt_getbuf(rel, rootblkno, BT_READ);
+		rootbuf = _bt_getbuf(rel, heaprel, rootblkno, BT_READ);
 		rootpage = BufferGetPage(rootbuf);
 		rootopaque = BTPageGetOpaque(rootpage);
 
@@ -396,7 +395,7 @@ _bt_getroot(Relation rel, int access)
 		rel->rd_amcache = NULL;
 	}
 
-	metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_READ);
+	metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_READ);
 	metad = _bt_getmeta(rel, metabuf);
 
 	/* if no root page initialized yet, do it */
@@ -429,7 +428,7 @@ _bt_getroot(Relation rel, int access)
 			 * to optimize this case.)
 			 */
 			_bt_relbuf(rel, metabuf);
-			return _bt_getroot(rel, access);
+			return _bt_getroot(rel, heaprel, access);
 		}
 
 		/*
@@ -437,7 +436,7 @@ _bt_getroot(Relation rel, int access)
 		 * the new root page.  Since this is the first page in the tree, it's
 		 * a leaf as well as the root.
 		 */
-		rootbuf = _bt_getbuf(rel, P_NEW, BT_WRITE);
+		rootbuf = _bt_getbuf(rel, heaprel, P_NEW, BT_WRITE);
 		rootblkno = BufferGetBlockNumber(rootbuf);
 		rootpage = BufferGetPage(rootbuf);
 		rootopaque = BTPageGetOpaque(rootpage);
@@ -574,7 +573,7 @@ _bt_getroot(Relation rel, int access)
  * moving to the root --- that'd deadlock against any concurrent root split.)
  */
 Buffer
-_bt_gettrueroot(Relation rel)
+_bt_gettrueroot(Relation rel, Relation heaprel)
 {
 	Buffer		metabuf;
 	Page		metapg;
@@ -596,7 +595,7 @@ _bt_gettrueroot(Relation rel)
 		pfree(rel->rd_amcache);
 	rel->rd_amcache = NULL;
 
-	metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_READ);
+	metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_READ);
 	metapg = BufferGetPage(metabuf);
 	metaopaque = BTPageGetOpaque(metapg);
 	metad = BTPageGetMeta(metapg);
@@ -669,7 +668,7 @@ _bt_gettrueroot(Relation rel)
  *		about updating previously cached data.
  */
 int
-_bt_getrootheight(Relation rel)
+_bt_getrootheight(Relation rel, Relation heaprel)
 {
 	BTMetaPageData *metad;
 
@@ -677,7 +676,7 @@ _bt_getrootheight(Relation rel)
 	{
 		Buffer		metabuf;
 
-		metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_READ);
+		metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_READ);
 		metad = _bt_getmeta(rel, metabuf);
 
 		/*
@@ -733,7 +732,7 @@ _bt_getrootheight(Relation rel)
  *		pg_upgrade'd from Postgres 12.
  */
 void
-_bt_metaversion(Relation rel, bool *heapkeyspace, bool *allequalimage)
+_bt_metaversion(Relation rel, Relation heaprel, bool *heapkeyspace, bool *allequalimage)
 {
 	BTMetaPageData *metad;
 
@@ -741,7 +740,7 @@ _bt_metaversion(Relation rel, bool *heapkeyspace, bool *allequalimage)
 	{
 		Buffer		metabuf;
 
-		metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_READ);
+		metabuf = _bt_getbuf(rel, heaprel, BTREE_METAPAGE, BT_READ);
 		metad = _bt_getmeta(rel, metabuf);
 
 		/*
@@ -825,7 +824,8 @@ _bt_checkpage(Relation rel, Buffer buf)
  * Log the reuse of a page from the FSM.
  */
 static void
-_bt_log_reuse_page(Relation rel, BlockNumber blkno, FullTransactionId safexid)
+_bt_log_reuse_page(Relation rel, Relation heaprel, BlockNumber blkno,
+				   FullTransactionId safexid)
 {
 	xl_btree_reuse_page xlrec_reuse;
 
@@ -868,7 +868,7 @@ _bt_log_reuse_page(Relation rel, BlockNumber blkno, FullTransactionId safexid)
  *		as _bt_lockbuf().
  */
 Buffer
-_bt_getbuf(Relation rel, BlockNumber blkno, int access)
+_bt_getbuf(Relation rel, Relation heaprel, BlockNumber blkno, int access)
 {
 	Buffer		buf;
 
@@ -943,7 +943,7 @@ _bt_getbuf(Relation rel, BlockNumber blkno, int access)
 					 * than safexid value
 					 */
 					if (XLogStandbyInfoActive() && RelationNeedsWAL(rel))
-						_bt_log_reuse_page(rel, blkno,
+						_bt_log_reuse_page(rel, heaprel, blkno,
 										   BTPageGetDeleteXid(page));
 
 					/* Okay to use page.  Re-initialize and return it. */
@@ -1293,7 +1293,7 @@ _bt_delitems_vacuum(Relation rel, Buffer buf,
  * clear page's VACUUM cycle ID.
  */
 static void
-_bt_delitems_delete(Relation rel, Buffer buf,
+_bt_delitems_delete(Relation rel, Relation heaprel, Buffer buf,
 					TransactionId snapshotConflictHorizon,
 					OffsetNumber *deletable, int ndeletable,
 					BTVacuumPosting *updatable, int nupdatable)
@@ -1684,8 +1684,8 @@ _bt_delitems_delete_check(Relation rel, Buffer buf, Relation heapRel,
 	}
 
 	/* Physically delete tuples (or TIDs) using deletable (or updatable) */
-	_bt_delitems_delete(rel, buf, snapshotConflictHorizon,
-						deletable, ndeletable, updatable, nupdatable);
+	_bt_delitems_delete(rel, heapRel, buf, snapshotConflictHorizon, deletable,
+						ndeletable, updatable, nupdatable);
 
 	/* be tidy */
 	for (int i = 0; i < nupdatable; i++)
@@ -1706,7 +1706,8 @@ _bt_delitems_delete_check(Relation rel, Buffer buf, Relation heapRel,
  * same level must always be locked left to right to avoid deadlocks.
  */
 static bool
-_bt_leftsib_splitflag(Relation rel, BlockNumber leftsib, BlockNumber target)
+_bt_leftsib_splitflag(Relation rel, Relation heaprel, BlockNumber leftsib,
+					  BlockNumber target)
 {
 	Buffer		buf;
 	Page		page;
@@ -1717,7 +1718,7 @@ _bt_leftsib_splitflag(Relation rel, BlockNumber leftsib, BlockNumber target)
 	if (leftsib == P_NONE)
 		return false;
 
-	buf = _bt_getbuf(rel, leftsib, BT_READ);
+	buf = _bt_getbuf(rel, heaprel, leftsib, BT_READ);
 	page = BufferGetPage(buf);
 	opaque = BTPageGetOpaque(page);
 
@@ -1763,7 +1764,7 @@ _bt_leftsib_splitflag(Relation rel, BlockNumber leftsib, BlockNumber target)
  * to-be-deleted subtree.)
  */
 static bool
-_bt_rightsib_halfdeadflag(Relation rel, BlockNumber leafrightsib)
+_bt_rightsib_halfdeadflag(Relation rel, Relation heaprel, BlockNumber leafrightsib)
 {
 	Buffer		buf;
 	Page		page;
@@ -1772,7 +1773,7 @@ _bt_rightsib_halfdeadflag(Relation rel, BlockNumber leafrightsib)
 
 	Assert(leafrightsib != P_NONE);
 
-	buf = _bt_getbuf(rel, leafrightsib, BT_READ);
+	buf = _bt_getbuf(rel, heaprel, leafrightsib, BT_READ);
 	page = BufferGetPage(buf);
 	opaque = BTPageGetOpaque(page);
 
@@ -1961,17 +1962,18 @@ _bt_pagedel(Relation rel, Buffer leafbuf, BTVacState *vstate)
 				 * marked with INCOMPLETE_SPLIT flag before proceeding
 				 */
 				Assert(leafblkno == scanblkno);
-				if (_bt_leftsib_splitflag(rel, leftsib, leafblkno))
+				if (_bt_leftsib_splitflag(rel, vstate->info->heaprel, leftsib, leafblkno))
 				{
 					ReleaseBuffer(leafbuf);
 					return;
 				}
 
 				/* we need an insertion scan key for the search, so build one */
-				itup_key = _bt_mkscankey(rel, targetkey);
+				itup_key = _bt_mkscankey(rel, vstate->info->heaprel, targetkey);
 				/* find the leftmost leaf page with matching pivot/high key */
 				itup_key->pivotsearch = true;
-				stack = _bt_search(rel, itup_key, &sleafbuf, BT_READ, NULL);
+				stack = _bt_search(rel, vstate->info->heaprel, itup_key,
+								   &sleafbuf, BT_READ, NULL);
 				/* won't need a second lock or pin on leafbuf */
 				_bt_relbuf(rel, sleafbuf);
 
@@ -2002,7 +2004,7 @@ _bt_pagedel(Relation rel, Buffer leafbuf, BTVacState *vstate)
 			 * leafbuf page half-dead.
 			 */
 			Assert(P_ISLEAF(opaque) && !P_IGNORE(opaque));
-			if (!_bt_mark_page_halfdead(rel, leafbuf, stack))
+			if (!_bt_mark_page_halfdead(rel, vstate->info->heaprel, leafbuf, stack))
 			{
 				_bt_relbuf(rel, leafbuf);
 				return;
@@ -2065,7 +2067,7 @@ _bt_pagedel(Relation rel, Buffer leafbuf, BTVacState *vstate)
 		if (!rightsib_empty)
 			break;
 
-		leafbuf = _bt_getbuf(rel, rightsib, BT_WRITE);
+		leafbuf = _bt_getbuf(rel, vstate->info->heaprel, rightsib, BT_WRITE);
 	}
 }
 
@@ -2084,7 +2086,8 @@ _bt_pagedel(Relation rel, Buffer leafbuf, BTVacState *vstate)
  * successfully.
  */
 static bool
-_bt_mark_page_halfdead(Relation rel, Buffer leafbuf, BTStack stack)
+_bt_mark_page_halfdead(Relation rel, Relation heaprel, Buffer leafbuf,
+					   BTStack stack)
 {
 	BlockNumber leafblkno;
 	BlockNumber leafrightsib;
@@ -2119,7 +2122,7 @@ _bt_mark_page_halfdead(Relation rel, Buffer leafbuf, BTStack stack)
 	 * delete the downlink.  It would fail the "right sibling of target page
 	 * is also the next child in parent page" cross-check below.
 	 */
-	if (_bt_rightsib_halfdeadflag(rel, leafrightsib))
+	if (_bt_rightsib_halfdeadflag(rel, heaprel, leafrightsib))
 	{
 		elog(DEBUG1, "could not delete page %u because its right sibling %u is half-dead",
 			 leafblkno, leafrightsib);
@@ -2143,7 +2146,7 @@ _bt_mark_page_halfdead(Relation rel, Buffer leafbuf, BTStack stack)
 	 */
 	topparent = leafblkno;
 	topparentrightsib = leafrightsib;
-	if (!_bt_lock_subtree_parent(rel, leafblkno, stack,
+	if (!_bt_lock_subtree_parent(rel, heaprel, leafblkno, stack,
 								 &subtreeparent, &poffset,
 								 &topparent, &topparentrightsib))
 		return false;
@@ -2363,7 +2366,7 @@ _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf, BlockNumber scanblkno,
 		Assert(target != leafblkno);
 
 		/* Fetch the block number of the target's left sibling */
-		buf = _bt_getbuf(rel, target, BT_READ);
+		buf = _bt_getbuf(rel, vstate->info->heaprel, target, BT_READ);
 		page = BufferGetPage(buf);
 		opaque = BTPageGetOpaque(page);
 		leftsib = opaque->btpo_prev;
@@ -2390,7 +2393,7 @@ _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf, BlockNumber scanblkno,
 		_bt_lockbuf(rel, leafbuf, BT_WRITE);
 	if (leftsib != P_NONE)
 	{
-		lbuf = _bt_getbuf(rel, leftsib, BT_WRITE);
+		lbuf = _bt_getbuf(rel, vstate->info->heaprel, leftsib, BT_WRITE);
 		page = BufferGetPage(lbuf);
 		opaque = BTPageGetOpaque(page);
 		while (P_ISDELETED(opaque) || opaque->btpo_next != target)
@@ -2440,7 +2443,7 @@ _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf, BlockNumber scanblkno,
 			CHECK_FOR_INTERRUPTS();
 
 			/* step right one page */
-			lbuf = _bt_getbuf(rel, leftsib, BT_WRITE);
+			lbuf = _bt_getbuf(rel, vstate->info->heaprel, leftsib, BT_WRITE);
 			page = BufferGetPage(lbuf);
 			opaque = BTPageGetOpaque(page);
 		}
@@ -2504,7 +2507,7 @@ _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf, BlockNumber scanblkno,
 	 * And next write-lock the (current) right sibling.
 	 */
 	rightsib = opaque->btpo_next;
-	rbuf = _bt_getbuf(rel, rightsib, BT_WRITE);
+	rbuf = _bt_getbuf(rel, vstate->info->heaprel, rightsib, BT_WRITE);
 	page = BufferGetPage(rbuf);
 	opaque = BTPageGetOpaque(page);
 	if (opaque->btpo_prev != target)
@@ -2533,7 +2536,8 @@ _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf, BlockNumber scanblkno,
 		if (P_RIGHTMOST(opaque))
 		{
 			/* rightsib will be the only one left on the level */
-			metabuf = _bt_getbuf(rel, BTREE_METAPAGE, BT_WRITE);
+			metabuf = _bt_getbuf(rel, vstate->info->heaprel, BTREE_METAPAGE,
+								 BT_WRITE);
 			metapg = BufferGetPage(metabuf);
 			metad = BTPageGetMeta(metapg);
 
@@ -2773,9 +2777,10 @@ _bt_unlink_halfdead_page(Relation rel, Buffer leafbuf, BlockNumber scanblkno,
  * parent block in the leafbuf page using BTreeTupleSetTopParent()).
  */
 static bool
-_bt_lock_subtree_parent(Relation rel, BlockNumber child, BTStack stack,
-						Buffer *subtreeparent, OffsetNumber *poffset,
-						BlockNumber *topparent, BlockNumber *topparentrightsib)
+_bt_lock_subtree_parent(Relation rel, Relation heaprel, BlockNumber child,
+						BTStack stack, Buffer *subtreeparent,
+						OffsetNumber *poffset, BlockNumber *topparent,
+						BlockNumber *topparentrightsib)
 {
 	BlockNumber parent,
 				leftsibparent;
@@ -2789,7 +2794,7 @@ _bt_lock_subtree_parent(Relation rel, BlockNumber child, BTStack stack,
 	 * Locate the pivot tuple whose downlink points to "child".  Write lock
 	 * the parent page itself.
 	 */
-	pbuf = _bt_getstackbuf(rel, stack, child);
+	pbuf = _bt_getstackbuf(rel, heaprel, stack, child);
 	if (pbuf == InvalidBuffer)
 	{
 		/*
@@ -2889,11 +2894,11 @@ _bt_lock_subtree_parent(Relation rel, BlockNumber child, BTStack stack,
 	 *
 	 * Note: We deliberately avoid completing incomplete splits here.
 	 */
-	if (_bt_leftsib_splitflag(rel, leftsibparent, parent))
+	if (_bt_leftsib_splitflag(rel, heaprel, leftsibparent, parent))
 		return false;
 
 	/* Recurse to examine child page's grandparent page */
-	return _bt_lock_subtree_parent(rel, parent, stack->bts_parent,
+	return _bt_lock_subtree_parent(rel, heaprel, parent, stack->bts_parent,
 								   subtreeparent, poffset,
 								   topparent, topparentrightsib);
 }
diff --git a/src/backend/access/nbtree/nbtree.c b/src/backend/access/nbtree/nbtree.c
index a68dd07534f..97a39b0f658 100644
--- a/src/backend/access/nbtree/nbtree.c
+++ b/src/backend/access/nbtree/nbtree.c
@@ -835,7 +835,7 @@ btvacuumcleanup(IndexVacuumInfo *info, IndexBulkDeleteResult *stats)
 	if (stats == NULL)
 	{
 		/* Check if VACUUM operation can entirely avoid btvacuumscan() call */
-		if (!_bt_vacuum_needs_cleanup(info->index))
+		if (!_bt_vacuum_needs_cleanup(info->index, info->heaprel))
 			return NULL;
 
 		/*
@@ -871,7 +871,7 @@ btvacuumcleanup(IndexVacuumInfo *info, IndexBulkDeleteResult *stats)
 	 */
 	Assert(stats->pages_deleted >= stats->pages_free);
 	num_delpages = stats->pages_deleted - stats->pages_free;
-	_bt_set_cleanup_info(info->index, num_delpages);
+	_bt_set_cleanup_info(info->index, info->heaprel, num_delpages);
 
 	/*
 	 * It's quite possible for us to be fooled by concurrent page splits into
diff --git a/src/backend/access/nbtree/nbtsearch.c b/src/backend/access/nbtree/nbtsearch.c
index c43c1a2830a..263f75fce95 100644
--- a/src/backend/access/nbtree/nbtsearch.c
+++ b/src/backend/access/nbtree/nbtsearch.c
@@ -42,7 +42,8 @@ static bool _bt_steppage(IndexScanDesc scan, ScanDirection dir);
 static bool _bt_readnextpage(IndexScanDesc scan, BlockNumber blkno, ScanDirection dir);
 static bool _bt_parallel_readpage(IndexScanDesc scan, BlockNumber blkno,
 								  ScanDirection dir);
-static Buffer _bt_walk_left(Relation rel, Buffer buf, Snapshot snapshot);
+static Buffer _bt_walk_left(Relation rel, Relation heaprel, Buffer buf,
+							Snapshot snapshot);
 static bool _bt_endpoint(IndexScanDesc scan, ScanDirection dir);
 static inline void _bt_initialize_more_data(BTScanOpaque so, ScanDirection dir);
 
@@ -93,14 +94,14 @@ _bt_drop_lock_and_maybe_pin(IndexScanDesc scan, BTScanPos sp)
  * during the search will be finished.
  */
 BTStack
-_bt_search(Relation rel, BTScanInsert key, Buffer *bufP, int access,
-		   Snapshot snapshot)
+_bt_search(Relation rel, Relation heaprel, BTScanInsert key, Buffer *bufP,
+		   int access, Snapshot snapshot)
 {
 	BTStack		stack_in = NULL;
 	int			page_access = BT_READ;
 
 	/* Get the root page to start with */
-	*bufP = _bt_getroot(rel, access);
+	*bufP = _bt_getroot(rel, heaprel, access);
 
 	/* If index is empty and access = BT_READ, no root page is created. */
 	if (!BufferIsValid(*bufP))
@@ -129,8 +130,8 @@ _bt_search(Relation rel, BTScanInsert key, Buffer *bufP, int access,
 		 * also taken care of in _bt_getstackbuf).  But this is a good
 		 * opportunity to finish splits of internal pages too.
 		 */
-		*bufP = _bt_moveright(rel, key, *bufP, (access == BT_WRITE), stack_in,
-							  page_access, snapshot);
+		*bufP = _bt_moveright(rel, heaprel, key, *bufP, (access == BT_WRITE),
+							  stack_in, page_access, snapshot);
 
 		/* if this is a leaf page, we're done */
 		page = BufferGetPage(*bufP);
@@ -190,7 +191,7 @@ _bt_search(Relation rel, BTScanInsert key, Buffer *bufP, int access,
 		 * but before we acquired a write lock.  If it has, we may need to
 		 * move right to its new sibling.  Do that.
 		 */
-		*bufP = _bt_moveright(rel, key, *bufP, true, stack_in, BT_WRITE,
+		*bufP = _bt_moveright(rel, heaprel, key, *bufP, true, stack_in, BT_WRITE,
 							  snapshot);
 	}
 
@@ -234,6 +235,7 @@ _bt_search(Relation rel, BTScanInsert key, Buffer *bufP, int access,
  */
 Buffer
 _bt_moveright(Relation rel,
+			  Relation heaprel,
 			  BTScanInsert key,
 			  Buffer buf,
 			  bool forupdate,
@@ -288,12 +290,12 @@ _bt_moveright(Relation rel,
 			}
 
 			if (P_INCOMPLETE_SPLIT(opaque))
-				_bt_finish_split(rel, buf, stack);
+				_bt_finish_split(rel, heaprel, buf, stack);
 			else
 				_bt_relbuf(rel, buf);
 
 			/* re-acquire the lock in the right mode, and re-check */
-			buf = _bt_getbuf(rel, blkno, access);
+			buf = _bt_getbuf(rel, heaprel, blkno, access);
 			continue;
 		}
 
@@ -860,6 +862,7 @@ bool
 _bt_first(IndexScanDesc scan, ScanDirection dir)
 {
 	Relation	rel = scan->indexRelation;
+	Relation	heaprel = scan->heapRelation;
 	BTScanOpaque so = (BTScanOpaque) scan->opaque;
 	Buffer		buf;
 	BTStack		stack;
@@ -1352,7 +1355,7 @@ _bt_first(IndexScanDesc scan, ScanDirection dir)
 	}
 
 	/* Initialize remaining insertion scan key fields */
-	_bt_metaversion(rel, &inskey.heapkeyspace, &inskey.allequalimage);
+	_bt_metaversion(rel, heaprel, &inskey.heapkeyspace, &inskey.allequalimage);
 	inskey.anynullkeys = false; /* unused */
 	inskey.nextkey = nextkey;
 	inskey.pivotsearch = false;
@@ -1363,7 +1366,7 @@ _bt_first(IndexScanDesc scan, ScanDirection dir)
 	 * Use the manufactured insertion scan key to descend the tree and
 	 * position ourselves on the target leaf page.
 	 */
-	stack = _bt_search(rel, &inskey, &buf, BT_READ, scan->xs_snapshot);
+	stack = _bt_search(rel, heaprel, &inskey, &buf, BT_READ, scan->xs_snapshot);
 
 	/* don't need to keep the stack around... */
 	_bt_freestack(stack);
@@ -2004,7 +2007,7 @@ _bt_readnextpage(IndexScanDesc scan, BlockNumber blkno, ScanDirection dir)
 			/* check for interrupts while we're not holding any buffer lock */
 			CHECK_FOR_INTERRUPTS();
 			/* step right one page */
-			so->currPos.buf = _bt_getbuf(rel, blkno, BT_READ);
+			so->currPos.buf = _bt_getbuf(rel, scan->heapRelation, blkno, BT_READ);
 			page = BufferGetPage(so->currPos.buf);
 			TestForOldSnapshot(scan->xs_snapshot, rel, page);
 			opaque = BTPageGetOpaque(page);
@@ -2078,7 +2081,8 @@ _bt_readnextpage(IndexScanDesc scan, BlockNumber blkno, ScanDirection dir)
 		if (BTScanPosIsPinned(so->currPos))
 			_bt_lockbuf(rel, so->currPos.buf, BT_READ);
 		else
-			so->currPos.buf = _bt_getbuf(rel, so->currPos.currPage, BT_READ);
+			so->currPos.buf = _bt_getbuf(rel, scan->heapRelation,
+										 so->currPos.currPage, BT_READ);
 
 		for (;;)
 		{
@@ -2092,8 +2096,8 @@ _bt_readnextpage(IndexScanDesc scan, BlockNumber blkno, ScanDirection dir)
 			}
 
 			/* Step to next physical page */
-			so->currPos.buf = _bt_walk_left(rel, so->currPos.buf,
-											scan->xs_snapshot);
+			so->currPos.buf = _bt_walk_left(rel, scan->heapRelation,
+											so->currPos.buf, scan->xs_snapshot);
 
 			/* if we're physically at end of index, return failure */
 			if (so->currPos.buf == InvalidBuffer)
@@ -2140,7 +2144,8 @@ _bt_readnextpage(IndexScanDesc scan, BlockNumber blkno, ScanDirection dir)
 					BTScanPosInvalidate(so->currPos);
 					return false;
 				}
-				so->currPos.buf = _bt_getbuf(rel, blkno, BT_READ);
+				so->currPos.buf = _bt_getbuf(rel, scan->heapRelation, blkno,
+											 BT_READ);
 			}
 		}
 	}
@@ -2185,7 +2190,7 @@ _bt_parallel_readpage(IndexScanDesc scan, BlockNumber blkno, ScanDirection dir)
  * again if it's important.
  */
 static Buffer
-_bt_walk_left(Relation rel, Buffer buf, Snapshot snapshot)
+_bt_walk_left(Relation rel, Relation heaprel, Buffer buf, Snapshot snapshot)
 {
 	Page		page;
 	BTPageOpaque opaque;
@@ -2213,7 +2218,7 @@ _bt_walk_left(Relation rel, Buffer buf, Snapshot snapshot)
 		_bt_relbuf(rel, buf);
 		/* check for interrupts while we're not holding any buffer lock */
 		CHECK_FOR_INTERRUPTS();
-		buf = _bt_getbuf(rel, blkno, BT_READ);
+		buf = _bt_getbuf(rel, heaprel, blkno, BT_READ);
 		page = BufferGetPage(buf);
 		TestForOldSnapshot(snapshot, rel, page);
 		opaque = BTPageGetOpaque(page);
@@ -2304,7 +2309,7 @@ _bt_walk_left(Relation rel, Buffer buf, Snapshot snapshot)
  * The returned buffer is pinned and read-locked.
  */
 Buffer
-_bt_get_endpoint(Relation rel, uint32 level, bool rightmost,
+_bt_get_endpoint(Relation rel, Relation heaprel, uint32 level, bool rightmost,
 				 Snapshot snapshot)
 {
 	Buffer		buf;
@@ -2320,9 +2325,9 @@ _bt_get_endpoint(Relation rel, uint32 level, bool rightmost,
 	 * smarter about intermediate levels.)
 	 */
 	if (level == 0)
-		buf = _bt_getroot(rel, BT_READ);
+		buf = _bt_getroot(rel, heaprel, BT_READ);
 	else
-		buf = _bt_gettrueroot(rel);
+		buf = _bt_gettrueroot(rel, heaprel);
 
 	if (!BufferIsValid(buf))
 		return InvalidBuffer;
@@ -2403,7 +2408,8 @@ _bt_endpoint(IndexScanDesc scan, ScanDirection dir)
 	 * version of _bt_search().  We don't maintain a stack since we know we
 	 * won't need it.
 	 */
-	buf = _bt_get_endpoint(rel, 0, ScanDirectionIsBackward(dir), scan->xs_snapshot);
+	buf = _bt_get_endpoint(rel, scan->heapRelation, 0,
+						   ScanDirectionIsBackward(dir), scan->xs_snapshot);
 
 	if (!BufferIsValid(buf))
 	{
diff --git a/src/backend/access/nbtree/nbtsort.c b/src/backend/access/nbtree/nbtsort.c
index 02b9601bece..1207a496895 100644
--- a/src/backend/access/nbtree/nbtsort.c
+++ b/src/backend/access/nbtree/nbtsort.c
@@ -566,7 +566,7 @@ _bt_leafbuild(BTSpool *btspool, BTSpool *btspool2)
 
 	wstate.heap = btspool->heap;
 	wstate.index = btspool->index;
-	wstate.inskey = _bt_mkscankey(wstate.index, NULL);
+	wstate.inskey = _bt_mkscankey(wstate.index, btspool->heap, NULL);
 	/* _bt_mkscankey() won't set allequalimage without metapage */
 	wstate.inskey->allequalimage = _bt_allequalimage(wstate.index, true);
 	wstate.btws_use_wal = RelationNeedsWAL(wstate.index);
diff --git a/src/backend/access/nbtree/nbtutils.c b/src/backend/access/nbtree/nbtutils.c
index 7da499c4dd5..05abf36032e 100644
--- a/src/backend/access/nbtree/nbtutils.c
+++ b/src/backend/access/nbtree/nbtutils.c
@@ -87,7 +87,7 @@ static int	_bt_keep_natts(Relation rel, IndexTuple lastleft,
  *		field themselves.
  */
 BTScanInsert
-_bt_mkscankey(Relation rel, IndexTuple itup)
+_bt_mkscankey(Relation rel, Relation heaprel, IndexTuple itup)
 {
 	BTScanInsert key;
 	ScanKey		skey;
@@ -112,7 +112,7 @@ _bt_mkscankey(Relation rel, IndexTuple itup)
 	key = palloc(offsetof(BTScanInsertData, scankeys) +
 				 sizeof(ScanKeyData) * indnkeyatts);
 	if (itup)
-		_bt_metaversion(rel, &key->heapkeyspace, &key->allequalimage);
+		_bt_metaversion(rel, heaprel, &key->heapkeyspace, &key->allequalimage);
 	else
 	{
 		/* Utility statement callers can set these fields themselves */
@@ -1761,7 +1761,8 @@ _bt_killitems(IndexScanDesc scan)
 
 		droppedpin = true;
 		/* Attempt to re-read the buffer, getting pin and lock. */
-		buf = _bt_getbuf(scan->indexRelation, so->currPos.currPage, BT_READ);
+		buf = _bt_getbuf(scan->indexRelation, scan->heapRelation,
+						 so->currPos.currPage, BT_READ);
 
 		page = BufferGetPage(buf);
 		if (BufferGetLSNAtomic(buf) == so->currPos.lsn)
diff --git a/src/backend/access/spgist/spgvacuum.c b/src/backend/access/spgist/spgvacuum.c
index 3adb18f2d82..3cff71e7203 100644
--- a/src/backend/access/spgist/spgvacuum.c
+++ b/src/backend/access/spgist/spgvacuum.c
@@ -489,7 +489,7 @@ vacuumLeafRoot(spgBulkDeleteState *bds, Relation index, Buffer buffer)
  * Unlike the routines above, this works on both leaf and inner pages.
  */
 static void
-vacuumRedirectAndPlaceholder(Relation index, Buffer buffer)
+vacuumRedirectAndPlaceholder(Relation index, Relation heaprel, Buffer buffer)
 {
 	Page		page = BufferGetPage(buffer);
 	SpGistPageOpaque opaque = SpGistPageGetOpaque(page);
@@ -643,13 +643,13 @@ spgvacuumpage(spgBulkDeleteState *bds, BlockNumber blkno)
 		else
 		{
 			vacuumLeafPage(bds, index, buffer, false);
-			vacuumRedirectAndPlaceholder(index, buffer);
+			vacuumRedirectAndPlaceholder(index, bds->info->heaprel, buffer);
 		}
 	}
 	else
 	{
 		/* inner page */
-		vacuumRedirectAndPlaceholder(index, buffer);
+		vacuumRedirectAndPlaceholder(index, bds->info->heaprel, buffer);
 	}
 
 	/*
@@ -719,7 +719,7 @@ spgprocesspending(spgBulkDeleteState *bds)
 			/* deal with any deletable tuples */
 			vacuumLeafPage(bds, index, buffer, true);
 			/* might as well do this while we are here */
-			vacuumRedirectAndPlaceholder(index, buffer);
+			vacuumRedirectAndPlaceholder(index, bds->info->heaprel, buffer);
 
 			SpGistSetLastUsedPage(index, buffer);