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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2008-07-13 20:45:47 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2008-07-13 20:45:47 +0000 |
| commit | 9d035f425452279041c52e01cf83b2a27e121b5c (patch) | |
| tree | d521a3bdb9ca231ed49e09a48259a45b519f6d1c /src/backend/optimizer/util/plancat.c | |
| parent | 45efb09a01e93d20ccb5671703649d9f87f744de (diff) | |
| download | postgresql-9d035f425452279041c52e01cf83b2a27e121b5c.tar.gz postgresql-9d035f425452279041c52e01cf83b2a27e121b5c.zip | |
Clean up the use of some page-header-access macros: principally, use
SizeOfPageHeaderData instead of sizeof(PageHeaderData) in places where that
makes the code clearer, and avoid casting between Page and PageHeader where
possible. Zdenek Kotala, with some additional cleanup by Heikki Linnakangas.
I did not apply the parts of the proposed patch that would have resulted in
slightly changing the on-disk format of hash indexes; it seems to me that's
not a win as long as there's any chance of having in-place upgrade for 8.4.
Diffstat (limited to 'src/backend/optimizer/util/plancat.c')
| -rw-r--r-- | src/backend/optimizer/util/plancat.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c index a0f146aa38e..cb9a07b77d5 100644 --- a/src/backend/optimizer/util/plancat.c +++ b/src/backend/optimizer/util/plancat.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.147 2008/06/19 00:46:04 alvherre Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.148 2008/07/13 20:45:47 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -429,7 +429,7 @@ estimate_rel_size(Relation rel, int32 *attr_widths, tuple_width += sizeof(HeapTupleHeaderData); tuple_width += sizeof(ItemPointerData); /* note: integer division is intentional here */ - density = (BLCKSZ - sizeof(PageHeaderData)) / tuple_width; + density = (BLCKSZ - SizeOfPageHeaderData) / tuple_width; } *tuples = rint(density * (double) curpages); break; |