From: Chad Thompson <chad@weblinkservices.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-sql <pgsql-sql@postgresql.org>
Subject: Re: Index scan never executed?
Date: Fri, 30 May 2003 13:01:07 -0600
Message-ID: <00cd01c326dd$d4342180$32021aac@chad> (raw)
References: <004601c32606$884af960$32021aac@chad>
<28951.1054233994@sss.pgh.pa.us>
>
> I guess it's a little unclear what to print for the first number when no
> rows are output at all. The code evidently is using the total time spent
> in the plan node, but I think it would be at least as justifiable to
> print a zero instead. Would you have found that less confusing? Anyone
> else have an opinion about whether to change that detail?
>
No, that makes perfect sense now that it has been explained.
> Perhaps an index on project_id would be more helpful, or a two-column
> index on (project_id, start_time).
As usual, you are in fine form. A two-column index brought the query from
115 sec to 6.
Thanks!
Chad
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To: pgsql-sql@postgresql.org
Cc: chad@weblinkservices.com, tgl@sss.pgh.pa.us
Subject: Re: Index scan never executed?
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