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Diffstat (limited to 'src/backend/optimizer/path/costsize.c')
| -rw-r--r-- | src/backend/optimizer/path/costsize.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c index 020558b430a..78ef22949a6 100644 --- a/src/backend/optimizer/path/costsize.c +++ b/src/backend/optimizer/path/costsize.c @@ -4036,11 +4036,11 @@ set_rel_width(PlannerInfo *root, RelOptInfo *rel) /* * If we have a whole-row reference, estimate its width as the sum of - * per-column widths plus sizeof(HeapTupleHeaderData). + * per-column widths plus heap tuple header overhead. */ if (have_wholerow_var) { - int32 wholerow_width = sizeof(HeapTupleHeaderData); + int32 wholerow_width = MAXALIGN(SizeofHeapTupleHeader); if (reloid != InvalidOid) { @@ -4078,7 +4078,7 @@ set_rel_width(PlannerInfo *root, RelOptInfo *rel) static double relation_byte_size(double tuples, int width) { - return tuples * (MAXALIGN(width) + MAXALIGN(sizeof(HeapTupleHeaderData))); + return tuples * (MAXALIGN(width) + MAXALIGN(SizeofHeapTupleHeader)); } /* |