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| author | Robert Haas <rhaas@postgresql.org> | 2010-12-13 12:34:26 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2010-12-13 12:34:26 -0500 |
| commit | 5f7b58fad8f45c69bb67944779dce67e2f481995 (patch) | |
| tree | fae9ba84d982d83e9505546facfe17369909994a /src/backend/storage/buffer/bufmgr.c | |
| parent | 0c90442355fbbe785740669f63141f24674c8958 (diff) | |
| download | postgresql-5f7b58fad8f45c69bb67944779dce67e2f481995.tar.gz postgresql-5f7b58fad8f45c69bb67944779dce67e2f481995.zip | |
Generalize concept of temporary relations to "relation persistence".
This commit replaces pg_class.relistemp with pg_class.relpersistence;
and also modifies the RangeVar node type to carry relpersistence rather
than istemp. It also removes removes rd_istemp from RelationData and
instead performs the correct computation based on relpersistence.
For clarity, we add three new macros: RelationNeedsWAL(),
RelationUsesLocalBuffers(), and RelationUsesTempNamespace(), so that we
can clarify the purpose of each check that previous depended on
rd_istemp.
This is intended as infrastructure for the upcoming unlogged tables
patch, as well as for future possible work on global temporary tables.
Diffstat (limited to 'src/backend/storage/buffer/bufmgr.c')
| -rw-r--r-- | src/backend/storage/buffer/bufmgr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index edc497788df..860e736ff05 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -123,7 +123,7 @@ PrefetchBuffer(Relation reln, ForkNumber forkNum, BlockNumber blockNum) /* Open it at the smgr level if not already done */ RelationOpenSmgr(reln); - if (reln->rd_istemp) + if (RelationUsesLocalBuffers(reln)) { /* see comments in ReadBufferExtended */ if (RELATION_IS_OTHER_TEMP(reln)) @@ -2071,7 +2071,7 @@ FlushRelationBuffers(Relation rel) /* Open rel at the smgr level if not already done */ RelationOpenSmgr(rel); - if (rel->rd_istemp) + if (RelationUsesLocalBuffers(rel)) { for (i = 0; i < NLocBuffer; i++) { |