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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2000-01-22 23:50:30 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2000-01-22 23:50:30 +0000 |
| commit | 71ed7eb4941ddb32700a51a8b8b3403eceeca4a9 (patch) | |
| tree | e2452e2e308d6066c2c7e255eab5332cfcb4baa8 /src/backend/optimizer/path/orindxpath.c | |
| parent | 78845177bb8839a2a582b92de2b46ce7d3f16df4 (diff) | |
| download | postgresql-71ed7eb4941ddb32700a51a8b8b3403eceeca4a9.tar.gz postgresql-71ed7eb4941ddb32700a51a8b8b3403eceeca4a9.zip | |
Revise handling of index-type-specific indexscan cost estimation, per
pghackers discussion of 5-Jan-2000. The amopselect and amopnpages
estimators are gone, and in their place is a per-AM amcostestimate
procedure (linked to from pg_am, not pg_amop).
Diffstat (limited to 'src/backend/optimizer/path/orindxpath.c')
| -rw-r--r-- | src/backend/optimizer/path/orindxpath.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/src/backend/optimizer/path/orindxpath.c b/src/backend/optimizer/path/orindxpath.c index f5813a27a8e..2831342fd88 100644 --- a/src/backend/optimizer/path/orindxpath.c +++ b/src/backend/optimizer/path/orindxpath.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/path/orindxpath.c,v 1.33 2000/01/09 00:26:33 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/path/orindxpath.c,v 1.34 2000/01/22 23:50:15 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -215,21 +215,11 @@ best_or_subclause_index(Query *root, foreach(ilist, indices) { IndexOptInfo *index = (IndexOptInfo *) lfirst(ilist); - long npages; - Selectivity selec; Cost subcost; Assert(IsA(index, IndexOptInfo)); - index_selectivity(root, - rel, - index, - indexqual, - &npages, - &selec); - - subcost = cost_index(rel, index, - npages, selec, + subcost = cost_index(root, rel, index, indexqual, false); if (first_run || subcost < *retCost) |