sharpetronics/PostgreSQL
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-10-31 00:03:57 -04:00
Code Issues Projects Releases Wiki Activity

Fix division by zero in the new range type histogram creation.

Browse Source 
Report and analysis by Matthias.
This commit is contained in:
Heikki Linnakangas 2012-08-30 20:27:19 +03:00
parent a66fca3f0c
commit 3e6eb0dd0a
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/backend/utils/adt/rangetypes_typanalyze.c
View File

@ -158,7 +158,10 @@ compute_range_stats(VacAttrStats *stats, AnalyzeAttrFetchFunc fetchfunc,
/* Must copy the target values into anl_context */
old_cxt = MemoryContextSwitchTo(stats->anl_context);
if (non_empty_cnt > 0)
/*
* Generate a histogram slot entry if there are at least two values.
*/
if (non_empty_cnt >= 2)
{
/* Sort bound values */
qsort_arg(lowers, non_empty_cnt, sizeof(RangeBound),