postgresql

mirror of https://git.postgresql.org/git/postgresql.git synced 2026-02-23 14:57:03 +08:00

Files

Tom Lane eed6c9ed7e Add a GUC parameter seq_page_cost, and use that everywhere we formerly

assumed that a sequential page fetch has cost 1.0.  This patch doesn't
in itself change the system's behavior at all, but it opens the door to
people adopting other units of measurement for EXPLAIN costs.  Also, if
we ever decide it's worth inventing per-tablespace access cost settings,
this change provides a workable intellectual framework for that.

2006-06-05 02:49:58 +00:00

allpaths.c

Avoid assuming that statistics for a parent relation reflect the properties of

2006-05-02 04:34:18 +00:00

clausesel.c

Remove the stub support we had for UNION JOIN; per discussion, this is

2006-03-07 01:00:19 +00:00

costsize.c

Add a GUC parameter seq_page_cost, and use that everywhere we formerly

2006-06-05 02:49:58 +00:00

indxpath.c

Fix choose_bitmap_and() so that partial index predicates are considered when