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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-30 01:33:36 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-30 01:33:36 +0000 |
| commit | a635c08fa10fe545d723bcec6eb73bfdca07e2c0 (patch) | |
| tree | 83ac01972011232d6841e60cd830fe34ac2463d5 /src/include/access/hash.h | |
| parent | e8cd6f14a26bbecd3d8abcf36235a033cb035678 (diff) | |
| download | postgresql-a635c08fa10fe545d723bcec6eb73bfdca07e2c0.tar.gz | |
Add support for cross-type hashing in hash index searches and hash joins.
Hashing for aggregation purposes still needs work, so it's not time to
mark any cross-type operators as hashable for general use, but these cases
work if the operators are so marked by hand in the system catalogs.
Diffstat (limited to 'src/include/access/hash.h')
| -rw-r--r-- | src/include/access/hash.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/access/hash.h b/src/include/access/hash.h index 40c86b7455..baed9fdb4b 100644 --- a/src/include/access/hash.h +++ b/src/include/access/hash.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/hash.h,v 1.75 2007/01/20 18:43:35 neilc Exp $ + * $PostgreSQL: pgsql/src/include/access/hash.h,v 1.76 2007/01/30 01:33:36 tgl Exp $ * * NOTES * modeled after Margo Seltzer's hash implementation for unix. @@ -308,6 +308,7 @@ extern bool _hash_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir); /* hashutil.c */ extern bool _hash_checkqual(IndexScanDesc scan, IndexTuple itup); extern uint32 _hash_datum2hashkey(Relation rel, Datum key); +extern uint32 _hash_datum2hashkey_type(Relation rel, Datum key, Oid keytype); extern Bucket _hash_hashkey2bucket(uint32 hashkey, uint32 maxbucket, uint32 highmask, uint32 lowmask); extern uint32 _hash_log2(uint32 num); |