database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-02 09:02:37 +03:00
Code Activity

Clean up the use of some page-header-access macros: principally, use

Browse Source 
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.
This commit is contained in:
Tom Lane
2008-07-13 20:45:47 +00:00
parent 45efb09a01
commit 9d035f4254
17 changed files with 96 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/optimizer/util/plancat.c
View File

@ -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;