Re: [HACKERS] update_pg_pwd trigger does not work very well
Bruce Momjian <pgman@candle.pha.pa.us>
From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@postgreSQL.org
Date: 2000-02-27T05:35:42Z
Lists: pgsql-hackers
> I am not quite certain that this is completely bulletproof when there > are multiple backends concurrently updating pg_shadow, but I have not > been able to think of a case where it'd fail. The worst possibility > is that a committed update in pg_shadow might not get propagated to > pg_pwd for a while because some other transaction is holding a lock on > pg_shadow. (But pg_pwd updates can be delayed for that reason now, > so it's certainly no worse than before.) > > Comments? I see your point. Guess we have to do it inside xact. -- Bruce Momjian | http://www.op.net/~candle pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026