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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-05-20 20:28:20 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-05-20 20:28:20 +0000 |
| commit | be03eb25f34c9c95c400504ef76c8abe0081d09f (patch) | |
| tree | ca3b081710826485bdaaad375b80e82f5a7fd611 /src/backend/optimizer/path/indxpath.c | |
| parent | 5d53389cfe5ecacadda12f3a777a642605278e49 (diff) | |
| download | postgresql-be03eb25f34c9c95c400504ef76c8abe0081d09f.tar.gz postgresql-be03eb25f34c9c95c400504ef76c8abe0081d09f.zip | |
Modify optimizer data structures so that IndexOptInfo lists built for
create_index_paths are not immediately discarded, but are available for
subsequent planner work. This allows avoiding redundant syscache lookups
in several places. Change interface to operator selectivity estimation
procedures to allow faster and more flexible estimation.
Initdb forced due to change of pg_proc entries for selectivity functions!
Diffstat (limited to 'src/backend/optimizer/path/indxpath.c')
| -rw-r--r-- | src/backend/optimizer/path/indxpath.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/src/backend/optimizer/path/indxpath.c b/src/backend/optimizer/path/indxpath.c index ca19465c897..a5f5bb151da 100644 --- a/src/backend/optimizer/path/indxpath.c +++ b/src/backend/optimizer/path/indxpath.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.104 2001/03/23 04:49:53 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.105 2001/05/20 20:28:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -127,18 +127,15 @@ static Const *string_to_const(const char *str, Oid datatype); * consideration in nested-loop joins. * * 'rel' is the relation for which we want to generate index paths - * 'indices' is a list of available indexes for 'rel' */ void -create_index_paths(Query *root, - RelOptInfo *rel, - List *indices) +create_index_paths(Query *root, RelOptInfo *rel) { List *restrictinfo_list = rel->baserestrictinfo; List *joininfo_list = rel->joininfo; List *ilist; - foreach(ilist, indices) + foreach(ilist, rel->indexlist) { IndexOptInfo *index = (IndexOptInfo *) lfirst(ilist); List *restrictclauses; @@ -1435,10 +1432,10 @@ index_innerjoin(Query *root, RelOptInfo *rel, IndexOptInfo *index, /* * Note that we are making a pathnode for a single-scan indexscan; - * therefore, both indexid and indexqual should be single-element + * therefore, both indexinfo and indexqual should be single-element * lists. */ - pathnode->indexid = makeListi1(index->indexoid); + pathnode->indexinfo = makeList1(index); pathnode->indexqual = makeList1(indexquals); /* We don't actually care what order the index scans in ... */ @@ -2030,7 +2027,6 @@ find_operator(const char *opname, Oid datatype) static Datum string_to_datum(const char *str, Oid datatype) { - /* * We cheat a little by assuming that textin() will do for bpchar and * varchar constants too... |