diff options
Diffstat (limited to 'src/backend/optimizer/path/costsize.c')
| -rw-r--r-- | src/backend/optimizer/path/costsize.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/src/backend/optimizer/path/costsize.c b/src/backend/optimizer/path/costsize.c index 7353e73462b..3f9416c20ac 100644 --- a/src/backend/optimizer/path/costsize.c +++ b/src/backend/optimizer/path/costsize.c @@ -49,7 +49,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.121 2004/01/05 23:39:54 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/costsize.c,v 1.122 2004/01/06 04:31:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -384,10 +384,6 @@ cost_index(Path *path, Query *root, * some of the indexquals are join clauses and shouldn't be * subtracted. Rather than work out exactly how much to subtract, we * don't subtract anything. - * - * XXX For a lossy index, not all the quals will be removed and so we - * really shouldn't subtract their costs; but detecting that seems - * more expensive than it's worth. */ startup_cost += baserel->baserestrictcost.startup; cpu_per_tuple = cpu_tuple_cost + baserel->baserestrictcost.per_tuple; @@ -397,6 +393,7 @@ cost_index(Path *path, Query *root, QualCost index_qual_cost; cost_qual_eval(&index_qual_cost, indexQuals); + /* any startup cost still has to be paid ... */ cpu_per_tuple -= index_qual_cost.per_tuple; } |