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| author | Tom Lane <tgl@sss.pgh.pa.us> | 1999-09-24 00:25:33 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 1999-09-24 00:25:33 +0000 |
| commit | e812458b273be00bde34fb74991ab4a99c24ab30 (patch) | |
| tree | e7460ae5c0344782f6f6068399f6f7eab5be96f6 /src/include/executor | |
| parent | ad791c1d140af97d93ee98883e2c45413d6f9836 (diff) | |
| download | postgresql-e812458b273be00bde34fb74991ab4a99c24ab30.tar.gz postgresql-e812458b273be00bde34fb74991ab4a99c24ab30.zip | |
Several changes here, not very related but touching some of the same files.
* Buffer refcount cleanup (per my "progress report" to pghackers, 9/22).
* Add links to backend PROC structs to sinval's array of per-backend info,
and use these links for routines that need to check the state of all
backends (rather than the slow, complicated search of the ShmemIndex
hashtable that was used before). Add databaseOID to PROC structs.
* Use this to implement an interlock that prevents DESTROY DATABASE of
a database containing running backends. (It's a little tricky to prevent
a concurrently-starting backend from getting in there, since the new
backend is not able to lock anything at the time it tries to look up
its database in pg_database. My solution is to recheck that the DB is
OK at the end of InitPostgres. It may not be a 100% solution, but it's
a lot better than no interlock at all...)
* In ALTER TABLE RENAME, flush buffers for the relation before doing the
rename of the physical files, to ensure we don't get failures later from
mdblindwrt().
* Update TRUNCATE patch so that it actually compiles against current
sources :-(.
You should do "make clean all" after pulling these changes.
Diffstat (limited to 'src/include/executor')
| -rw-r--r-- | src/include/executor/executor.h | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/src/include/executor/executor.h b/src/include/executor/executor.h index a23c81227e6..662358f4599 100644 --- a/src/include/executor/executor.h +++ b/src/include/executor/executor.h @@ -6,7 +6,7 @@ * * Copyright (c) 1994, Regents of the University of California * - * $Id: executor.h,v 1.37 1999/07/17 20:18:26 momjian Exp $ + * $Id: executor.h,v 1.38 1999/09/24 00:25:10 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -36,22 +36,6 @@ ) \ ) -/* -------------------------------- - * ExecIncrSlotBufferRefcnt - * - * When we pass around buffers in the tuple table, we have to - * be careful to increment reference counts appropriately. - * This is used mainly in the mergejoin code. - * -------------------------------- - */ -#define ExecIncrSlotBufferRefcnt(slot) \ -( \ - BufferIsValid((slot)->ttc_buffer) ? \ - IncrBufferRefCount((slot)->ttc_buffer) \ - : (void)NULL \ -) - - /* * prototypes from functions in execAmi.c */ |