Re: incomplete transaction keeps table locked? - Mailing list pgsql-general

From George Herson
Subject Re: incomplete transaction keeps table locked?
Date
Msg-id 3B0C24DC.98079321@snet.net
Whole thread Raw
In response to incomplete transaction keeps table locked?  (gherson@snet.net (George Herson))
List pgsql-general
Ok, thanks.

Hopefully upgrading PHP will get auto-rollbacks performed on exit of any
script where i've started a transaction and forgotten to do an explicit
rollback or commit.

george

Tom Lane wrote:
>
> gherson@snet.net (George Herson) writes:
> > Are there any circumstances when exiting a PHP web script
> > where you've started a transaction (with Begin Work) but haven't explicitly
> > done a Commit Work or Rollback before it ends will lock you out of
> > a table (until you restart postgresql)?
>
> The symptoms you describe sound like multiple transactions trying to
> update the same row.  There is a row-level lock that prevents the later
> ones from completing until the first one commits or aborts.
>
>                         regards, tom lane

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