| From: | tgl(at)svr1(dot)postgresql(dot)org (Tom Lane) |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Use the standard lock manager to establish priority order when |
| Date: | 2005-04-30 19:03:33 |
| Message-ID: | 20050430190333.8AC7E5331C@svr1.postgresql.org |
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| Lists: | pgsql-committers |
Log Message:
-----------
Use the standard lock manager to establish priority order when there
is contention for a tuple-level lock. This solves the problem of a
would-be exclusive locker being starved out by an indefinite succession
of share-lockers. Per recent discussion with Alvaro.
Modified Files:
--------------
pgsql/src/backend/access/heap:
heapam.c (r1.188 -> r1.189)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/heap/heapam.c.diff?r1=1.188&r2=1.189)
pgsql/src/backend/storage/lmgr:
lmgr.c (r1.72 -> r1.73)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/lmgr/lmgr.c.diff?r1=1.72&r2=1.73)
pgsql/src/include/storage:
lmgr.h (r1.47 -> r1.48)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/storage/lmgr.h.diff?r1=1.47&r2=1.48)
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