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| author | Vadim B. Mikheev <vadim4o@yahoo.com> | 1997-04-09 02:20:32 +0000 |
|---|---|---|
| committer | Vadim B. Mikheev <vadim4o@yahoo.com> | 1997-04-09 02:20:32 +0000 |
| commit | 2fd9273d97ce995cadc71e87aa6216a69972cbc1 (patch) | |
| tree | 36461896edfd1b03b601fc73a34b5223610b2b34 /src/backend/utils/adt/selfuncs.c | |
| parent | 610d0d00edde703e6ce4c1f8ce24fde981293774 (diff) | |
| download | postgresql-2fd9273d97ce995cadc71e87aa6216a69972cbc1.tar.gz postgresql-2fd9273d97ce995cadc71e87aa6216a69972cbc1.zip | |
getattnvals(): if attnvals in pg_attribute is 0 then use
ATTNVALS_SCALE/reltuples (instead of reltuples).
Diffstat (limited to 'src/backend/utils/adt/selfuncs.c')
| -rw-r--r-- | src/backend/utils/adt/selfuncs.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c index 769024bd427..b127e4238b2 100644 --- a/src/backend/utils/adt/selfuncs.c +++ b/src/backend/utils/adt/selfuncs.c @@ -12,7 +12,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.5 1997/02/07 16:23:39 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.6 1997/04/09 02:20:32 vadim Exp $ * *------------------------------------------------------------------------- */ @@ -291,6 +291,15 @@ getattnvals(Oid relid, AttrNumber attnum) return(0); } nvals = ((Form_pg_class) GETSTRUCT(atp))->reltuples; + /* Look above how nvals is used. - vadim 04/09/97 */ + if ( nvals > 0 ) + { + double selratio = 1.0 / (double)nvals; + + selratio *= (double)ATTNVALS_SCALE; + nvals = (int) ceil (selratio); + } + return(nvals); } |