From 5f7b58fad8f45c69bb67944779dce67e2f481995 Mon Sep 17 00:00:00 2001 From: Robert Haas Date: Mon, 13 Dec 2010 12:34:26 -0500 Subject: 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. --- src/backend/storage/buffer/bufmgr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/backend/storage/buffer/bufmgr.c') 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++) { -- cgit v1.2.3