Re: New docs chapter on Transaction Management and related changes
| От | Bruce Momjian |
|---|---|
| Тема | Re: New docs chapter on Transaction Management and related changes |
| Дата | |
| Msg-id | Y3feSlJgVFwA74Go@momjian.us обсуждение |
| Ответ на | Re: New docs chapter on Transaction Management and related changes (Simon Riggs <simon.riggs@enterprisedb.com>) |
| Список | pgsql-hackers |
On Thu, Nov 10, 2022 at 11:31:25AM +0000, Simon Riggs wrote: > > That's not true. Transactions waiting for table-level locks are shown > > waiting for a "relation" lock in both "pg_stat_activity" and "pg_locks". > > Agreed. > > Lock waits on table-locks are shown waiting for a lock type of > <literal>relation</literal>, > while lock waits on row-level locks are shown waiting for a lock type > of <literal>transactionid</literal>. > Table-level locks require only a virtualxid when the lock is less than an > AccessExclusiveLock; in other cases an xid must be allocated. Yeah, I went with more generic wording since the point seems to be that sometimes xid and sometimes vxids are waited on. -- Bruce Momjian <bruce@momjian.us> https://momjian.us EDB https://enterprisedb.com Indecision is a decision. Inaction is an action. Mark Batterson
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