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| author | Bruce Momjian <bruce@momjian.us> | 2006-02-11 16:59:09 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2006-02-11 16:59:09 +0000 |
| commit | bf324946b32736da1b128b1e742515879b42a4e8 (patch) | |
| tree | d1a9560e621c4423a40dfef2fc5dcfda183dfbeb /src/backend/access/index | |
| parent | 85d8ee846b6b645cdf07d948aabc807aa755deac (diff) | |
| download | postgresql-bf324946b32736da1b128b1e742515879b42a4e8.tar.gz postgresql-bf324946b32736da1b128b1e742515879b42a4e8.zip | |
Allow VACUUM to complete faster by avoiding scanning the indexes when no
rows were removed from the heap by the VACUUM.
Simon Riggs
Diffstat (limited to 'src/backend/access/index')
| -rw-r--r-- | src/backend/access/index/indexam.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/access/index/indexam.c b/src/backend/access/index/indexam.c index c1e61ff2bda..0365ae79424 100644 --- a/src/backend/access/index/indexam.c +++ b/src/backend/access/index/indexam.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/access/index/indexam.c,v 1.87 2005/12/03 05:51:00 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/access/index/indexam.c,v 1.88 2006/02/11 16:59:09 momjian Exp $ * * INTERFACE ROUTINES * index_open - open an index relation by relation OID @@ -685,6 +685,11 @@ index_getmulti(IndexScanDesc scan, * callback routine tells whether a given main-heap tuple is * to be deleted * + * passing NULL callback_state can be interpreted by the + * index access method as meaning that the index does not need + * to be scanned in logical sequence to remove rows for this call + * index_vacuum_cleanup is always required after this, however. + * * return value is an optional palloc'd struct of statistics * ---------------- */ |