diff options
| -rw-r--r-- | src/backend/commands/analyze.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/backend/commands/analyze.c b/src/backend/commands/analyze.c index ef10f1b2634..5f6a2c42de6 100644 --- a/src/backend/commands/analyze.c +++ b/src/backend/commands/analyze.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.131 2009/01/01 17:23:37 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.132 2009/01/06 23:46:06 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -2149,7 +2149,9 @@ compute_scalar_stats(VacAttrStatsP stats, * least 2 instances in the sample. Also, we won't suppress values * that have a frequency of at least 1/K where K is the intended * number of histogram bins; such values might otherwise cause us to - * emit duplicate histogram bin boundaries. + * emit duplicate histogram bin boundaries. (We might end up with + * duplicate histogram entries anyway, if the distribution is skewed; + * but we prefer to treat such values as MCVs if at all possible.) */ if (track_cnt == ndistinct && toowide_cnt == 0 && stats->stadistinct > 0 && |