From: | "Magnus Naeslund(f)" <mag(at)fbab(dot)net> |
---|---|
To: | <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: 7.4 Wishlist |
Date: | 2002-12-02 19:46:39 |
Message-ID: | 05a801c29a3b$88272550$f80c0a0a@mnd |
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Lists: | pgsql-advocacy pgsql-general pgsql-hackers |
Mysql is planning on making this work:
SELECT id, @a:=COUNT(*), SUM(sum_col)/@a FROM table_name GROUP BY id.
Do we have anything like it (After a discussion with Tom i figure no).
User variables is nice, especially in these kind of queries.
Nice would be to be able to use them as in C (almost everywhere):
SELECT id, @x FROM table_name t where (@x := date_part('days'. now() -
f.created)) > 100;
As Tom said in earlier mail, it might not be that big of a win in this
case, but if uses expensive functions, it will.
Magnus
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