Function _bitmap_buildinsert

src/backend/access/bitmap/bitmapinsert.c:2525–2539

* _bitmap_buildinsert() -- insert an index tuple during index creation. */

 * _bitmap_buildinsert() -- insert an index tuple during index creation.
 */
void
_bitmap_buildinsert(Relation rel, ItemPointerData ht_ctid, Datum *attdata, 
					bool *nulls, BMBuildState *state)
{
	TupleDesc	tupDesc;
	uint64		tidOffset;

	tidOffset = BM_IPTR_TO_INT(&ht_ctid); 

	tupDesc = RelationGetDescr(rel);

	/* insert a new bit into the corresponding bitmap */
	build_inserttuple(rel, tidOffset, ht_ctid,
							  tupDesc, attdata, nulls, state);
}

/*
 * _bitmap_doinsert() -- insert an index tuple for a given tuple.