bbaetz at acm.org
Sun Oct 17 00:19:56 UTC 2004
On Sat, Oct 16, 2004 at 04:38:18PM +0100, Gervase Markham wrote:
> Is it possible, either via the GUI or directly in SQL, to say:
> "Give me a list of all bugs meeting certain criteria, which in addition
> have (exactly 1|more than 1) comment"?
They're almost all going to have the initial comment, so you probably
want > 1.
select bug_id from longdescs where bug_id in (SELECT id from
bugs where ....) GROUP BY bug_id HAVING count(*) > 1
In mysql you'll have to do it as a temp table + join.
> I can do:
> SELECT bug_id, count(bug_when) AS bug_count FROM longdescs GROUP BY bug_id;
> but then I can't say "AND bug_count > 1" - it doesn't like that.
You have to do HAVING count(bug_when) > 1 - HAVING runs after GROUP BY.
Depending on your myqsl version, you may or may not have to have the
expression in the having as part of the columns you select.
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