3 files changed, 34 insertions, 1 deletions
diff --git a/src/include/access/heapam.h b/src/include/access/heapam.h
index 85cbeb3273..ed30b5dada 100644
--- a/src/include/access/heapam.h
+++ b/src/include/access/heapam.h
@@ -97,6 +97,8 @@ extern void FreeBulkInsertState(BulkInsertState);
 
 extern Oid heap_insert(Relation relation, HeapTuple tup, CommandId cid,
 			int options, BulkInsertState bistate);
+extern void heap_multi_insert(Relation relation, HeapTuple *tuples, int ntuples,
+				  CommandId cid, int options, BulkInsertState bistate);
 extern HTSU_Result heap_delete(Relation relation, ItemPointer tid,
 			ItemPointer ctid, TransactionId *update_xmax,
 			CommandId cid, Snapshot crosscheck, bool wait);
diff --git a/src/include/access/htup.h b/src/include/access/htup.h
index 966e2d0299..3ca25acb89 100644
--- a/src/include/access/htup.h
+++ b/src/include/access/htup.h
@@ -608,6 +608,7 @@ typedef HeapTupleData *HeapTuple;
 /* 0x20 is free, was XLOG_HEAP2_CLEAN_MOVE */
 #define XLOG_HEAP2_CLEANUP_INFO 0x30
 #define XLOG_HEAP2_VISIBLE		0x40
+#define XLOG_HEAP2_MULTI_INSERT	0x50
 
 /*
  * All what we need to find changed tuple
@@ -661,6 +662,36 @@ typedef struct xl_heap_insert
 
 #define SizeOfHeapInsert	(offsetof(xl_heap_insert, all_visible_cleared) + sizeof(bool))
 
+/*
+ * This is what we need to know about a multi-insert. The record consists of
+ * xl_heap_multi_insert header, followed by a xl_multi_insert_tuple and tuple
+ * data for each tuple. 'offsets' array is omitted if the whole page is
+ * reinitialized (XLOG_HEAP_INIT_PAGE)
+ */
+typedef struct xl_heap_multi_insert
+{
+	RelFileNode node;
+	BlockNumber	blkno;
+	bool		all_visible_cleared;
+	uint16		ntuples;
+	OffsetNumber offsets[1];
+
+	/* TUPLE DATA (xl_multi_insert_tuples) FOLLOW AT END OF STRUCT */
+} xl_heap_multi_insert;
+
+#define SizeOfHeapMultiInsert	offsetof(xl_heap_multi_insert, offsets)
+
+typedef struct xl_multi_insert_tuple
+{
+	uint16		datalen;				/* size of tuple data that follows */
+	uint16		t_infomask2;
+	uint16		t_infomask;
+	uint8		t_hoff;
+	/* TUPLE DATA FOLLOWS AT END OF STRUCT */
+} xl_multi_insert_tuple;
+
+#define SizeOfMultiInsertTuple	(offsetof(xl_multi_insert_tuple, t_hoff) + sizeof(uint8))
+
 /* This is what we need to know about update|hot_update */
 typedef struct xl_heap_update
 {
diff --git a/src/include/pgstat.h b/src/include/pgstat.h
index 7b2bd4edc0..651b7d9ddf 100644
--- a/src/include/pgstat.h
+++ b/src/include/pgstat.h
@@ -766,7 +766,7 @@ extern void pgstat_initstats(Relation rel);
 			(rel)->pgstat_info->t_counts.t_blocks_hit++;			\
 	} while (0)
 
-extern void pgstat_count_heap_insert(Relation rel);
+extern void pgstat_count_heap_insert(Relation rel, int n);
 extern void pgstat_count_heap_update(Relation rel, bool hot);
 extern void pgstat_count_heap_delete(Relation rel);
 extern void pgstat_update_heap_dead_tuples(Relation rel, int delta);