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List:       postgresql-sql
Subject:    Re: [SQL] Restriction by grouping problem.
From:       "Josh Berkus" <josh () agliodbs ! com>
Date:       2001-07-26 21:50:14
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Jeff,

> The query I have now:

> 

> SELECT min(datettime), sid FROM logs GROUP by sid;

> 

> This returns the first instance of an sid in the logs table, there

> can be

> many rows in the table for each sid. The problem I have is that I do

> not

> need the SID I just need to group the min(datetime) by it.

The answer to this question is simple:

SELECT min(datetime) as mintime FROM logs GROUP BY sid;

However, I get the impression that your intended problem was more
complicated.  Can you re-explain it?

-Josh


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