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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-06-08 23:02:05 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-06-08 23:02:05 +0000 |
| commit | e3a33a9a9f1a6afb80c9b83c1456c1a36fbcb70b (patch) | |
| tree | 9dc1b4c1acb8e24ecf82dc2536bdcc85c48774b0 /src/include/utils/hsearch.h | |
| parent | 77c168a836e4bec87461107a84d7b7bcf2b58156 (diff) | |
| download | postgresql-e3a33a9a9f1a6afb80c9b83c1456c1a36fbcb70b.tar.gz | |
Marginal hack to avoid spending a lot of time in find_join_rel during
large planning problems: when the list of join rels gets too long, make
an auxiliary hash table that hashes on the identifying Bitmapset.
Diffstat (limited to 'src/include/utils/hsearch.h')
| -rw-r--r-- | src/include/utils/hsearch.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/include/utils/hsearch.h b/src/include/utils/hsearch.h index bb93dea077..881327a3e0 100644 --- a/src/include/utils/hsearch.h +++ b/src/include/utils/hsearch.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/utils/hsearch.h,v 1.36 2005/05/29 04:23:06 tgl Exp $ + * $PostgreSQL: pgsql/src/include/utils/hsearch.h,v 1.37 2005/06/08 23:02:05 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -184,5 +184,7 @@ extern long hash_select_dirsize(long num_entries); extern uint32 string_hash(const void *key, Size keysize); extern uint32 tag_hash(const void *key, Size keysize); extern uint32 oid_hash(const void *key, Size keysize); +extern uint32 bitmap_hash(const void *key, Size keysize); +extern int bitmap_match(const void *key1, const void *key2, Size keysize); #endif /* HSEARCH_H */ |