Re: Very slow viewing of large table.

From: "Dave Page" <dpage(at)vale-housing(dot)co(dot)uk>
To: "Constantin Stefanov" <cstef(at)mail(dot)ru>, <pgadmin-support(at)postgresql(dot)org>
Subject: Re: Very slow viewing of large table.
Date: 2003-10-22 14:20:53
Message-ID: 03AF4E498C591348A42FC93DEA9661B84C5C19@mail.vale-housing.co.uk
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> -----Original Message-----
> From: Constantin Stefanov [mailto:cstef(at)mail(dot)ru]
> Sent: 22 October 2003 14:53
> To: pgadmin-support(at)postgresql(dot)org
> Subject: [pgadmin-support] Very slow viewing of large table.
>
> Hello.
>
> When in PgAdmin3 I click on a large table, it waits before
> opening it.
> As far as I could understand, it issues a row count on a
> table. Is there way to stop this behaviour?
> I found a letter about the same problem of February 2002, and
> Dave Page wrote he was intending to do something about.
> Am I searching in the wrong place or there is no capability
> for cancelling count queries?

Under File -> Options -> Query there is an option to control this
behaviour, though unless you have a slow server, it should have a
sensible value following install. From the helpfile:

"Count rows if estimated less than" - In the object browser, if the
estimated number of rows in a table (as read from the table statistics)
is below this limit, a SELECT count(*) will be performed to find the
exact value.

Regards, Dave.

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