mirrors/postgres
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix rounding problem in dynahash.c's decision about when the target

Browse Source 
fill factor has been exceeded.  We usually run with ffactor == 1, but
the way the test was coded, it wouldn't split a bucket until the actual
fill factor reached 2.0, because of use of integer division.  Change
from > to >= so that it will split more aggressively when the table
starts to get full.
This commit is contained in:
Tom Lane 2004-11-21 22:57:00 +00:00
parent 7f1711f29d
commit 294c34bb9d
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/utils/hash/dynahash.c
View File

@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/hash/dynahash.c,v 1.56 2004/10/25 00:46:43 neilc Exp $ * $PostgreSQL: pgsql/src/backend/utils/hash/dynahash.c,v 1.57 2004/11/21 22:57:00 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -662,7 +662,7 @@ hash_search(HTAB *hashp,
/* caller is expected to fill the data field on return */ /* caller is expected to fill the data field on return */
/* Check if it is time to split the segment */ /* Check if it is time to split the segment */
if (++hctl->nentries / (long) (hctl->max_bucket + 1) > hctl->ffactor) if (++hctl->nentries / (long) (hctl->max_bucket + 1) >= hctl->ffactor)
{ {
/* /*
* NOTE: failure to expand table is not a fatal error, it * NOTE: failure to expand table is not a fatal error, it