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Re: vacuum vs open transactions

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On Thursday January 13 2005 5:50, Alvaro Herrera wrote:
> On Wed, Jan 12, 2005 at 11:30:50PM -0700, Michael Fuhr wrote:
> > On Wed, Jan 12, 2005 at 11:49:12AM -0700, Ed L. wrote:
> > > Is it possible via SQL query to tell how long a transaction has been
> > > open?
> >
> > I'm not aware of a way to find out when a transaction started, but
> > if you have stats_command_string enabled then you can query
> > pg_stat_activity to see when a session's current query started.
>
> now() returns the current transaction's start time.

That would be perfect if I could see that for transactions other than my 
own.

Ed


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TIP 9: the planner will ignore your desire to choose an index scan if your
      joining column's datatypes do not match

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