From 024c521117579a6d356050ad3d78fdc95e44eefa Mon Sep 17 00:00:00 2001 From: Heikki Linnakangas Date: Sun, 3 Mar 2024 19:38:22 +0200 Subject: Replace BackendIds with 0-based ProcNumbers Now that BackendId was just another index into the proc array, it was redundant with the 0-based proc numbers used in other places. Replace all usage of backend IDs with proc numbers. The only place where the term "backend id" remains is in a few pgstat functions that expose backend IDs at the SQL level. Those IDs are now in fact 0-based ProcNumbers too, but the documentation still calls them "backend ids". That term still seems appropriate to describe what the numbers are, so I let it be. One user-visible effect is that pg_temp_0 is now a valid temp schema name, for backend with ProcNumber 0. Reviewed-by: Andres Freund Discussion: https://www.postgresql.org/message-id/8171f1aa-496f-46a6-afc3-c46fe7a9b407@iki.fi --- src/backend/access/transam/xlogutils.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src/backend/access/transam/xlogutils.c') diff --git a/src/backend/access/transam/xlogutils.c b/src/backend/access/transam/xlogutils.c index ad93035d508..f65554eb8f7 100644 --- a/src/backend/access/transam/xlogutils.c +++ b/src/backend/access/transam/xlogutils.c @@ -491,7 +491,7 @@ XLogReadBufferExtended(RelFileLocator rlocator, ForkNumber forknum, } /* Open the relation at smgr level */ - smgr = smgropen(rlocator, InvalidBackendId); + smgr = smgropen(rlocator, INVALID_PROC_NUMBER); /* * Create the target file if it doesn't already exist. This lets us cope @@ -598,7 +598,7 @@ CreateFakeRelcacheEntry(RelFileLocator rlocator) * We will never be working with temp rels during recovery or while * syncing WAL-skipped files. */ - rel->rd_backend = InvalidBackendId; + rel->rd_backend = INVALID_PROC_NUMBER; /* It must be a permanent table here */ rel->rd_rel->relpersistence = RELPERSISTENCE_PERMANENT; @@ -620,7 +620,7 @@ CreateFakeRelcacheEntry(RelFileLocator rlocator) * Set up a non-pinned SMgrRelation reference, so that we don't need to * worry about unpinning it on error. */ - rel->rd_smgr = smgropen(rlocator, InvalidBackendId); + rel->rd_smgr = smgropen(rlocator, INVALID_PROC_NUMBER); return rel; } -- cgit v1.2.3