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| author | Robert Haas <rhaas@postgresql.org> | 2010-12-29 06:48:53 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2010-12-29 06:48:53 -0500 |
| commit | 53dbc27c62d8e1b6c5253feba04a5094cb8fe046 (patch) | |
| tree | b27563b69fa73dc4b7dc873bfc653bedc6ba1e05 /src/include/access/hash.h | |
| parent | 9b8aff8c192e2f313f90395d114c58a9ef84f97f (diff) | |
| download | postgresql-53dbc27c62d8e1b6c5253feba04a5094cb8fe046.tar.gz | |
Support unlogged tables.
The contents of an unlogged table are WAL-logged; thus, they are not
available on standby servers and are truncated whenever the database
system enters recovery. Indexes on unlogged tables are also unlogged.
Unlogged GiST indexes are not currently supported.
Diffstat (limited to 'src/include/access/hash.h')
| -rw-r--r-- | src/include/access/hash.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/include/access/hash.h b/src/include/access/hash.h index d5899f4d57..a48320bbee 100644 --- a/src/include/access/hash.h +++ b/src/include/access/hash.h @@ -242,6 +242,7 @@ typedef HashMetaPageData *HashMetaPage; /* public routines */ extern Datum hashbuild(PG_FUNCTION_ARGS); +extern Datum hashbuildempty(PG_FUNCTION_ARGS); extern Datum hashinsert(PG_FUNCTION_ARGS); extern Datum hashbeginscan(PG_FUNCTION_ARGS); extern Datum hashgettuple(PG_FUNCTION_ARGS); @@ -291,7 +292,7 @@ extern Buffer _hash_addovflpage(Relation rel, Buffer metabuf, Buffer buf); extern BlockNumber _hash_freeovflpage(Relation rel, Buffer ovflbuf, BufferAccessStrategy bstrategy); extern void _hash_initbitmap(Relation rel, HashMetaPage metap, - BlockNumber blkno); + BlockNumber blkno, ForkNumber forkNum); extern void _hash_squeezebucket(Relation rel, Bucket bucket, BlockNumber bucket_blkno, BufferAccessStrategy bstrategy); @@ -303,7 +304,8 @@ extern void _hash_droplock(Relation rel, BlockNumber whichlock, int access); extern Buffer _hash_getbuf(Relation rel, BlockNumber blkno, int access, int flags); extern Buffer _hash_getinitbuf(Relation rel, BlockNumber blkno); -extern Buffer _hash_getnewbuf(Relation rel, BlockNumber blkno); +extern Buffer _hash_getnewbuf(Relation rel, BlockNumber blkno, + ForkNumber forkNum); extern Buffer _hash_getbuf_with_strategy(Relation rel, BlockNumber blkno, int access, int flags, BufferAccessStrategy bstrategy); @@ -312,7 +314,8 @@ extern void _hash_dropbuf(Relation rel, Buffer buf); extern void _hash_wrtbuf(Relation rel, Buffer buf); extern void _hash_chgbufaccess(Relation rel, Buffer buf, int from_access, int to_access); -extern uint32 _hash_metapinit(Relation rel, double num_tuples); +extern uint32 _hash_metapinit(Relation rel, double num_tuples, + ForkNumber forkNum); extern void _hash_pageinit(Page page, Size size); extern void _hash_expandtable(Relation rel, Buffer metabuf); |