in reply to DBI/mysql gathering all rows on execute

There are two possible causes, perhaps both of them at the same time:

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Re: Re: DBI/mysql gathering all rows on execute
by sgifford (Prior) on Nov 24, 2003 at 21:17 UTC

    Thanks, it was $sth->{"mysql_use_result"} = 1; that I needed!

    The right indexes are all in place (and EXPLAIN SELECT agrees), there are just a huge number of rows in the result set.

    Now here's the other weird thing, which doesn't matter for my real project but is still unusual. When I make this change, the test program I posted above works better, but now it hangs for a long time during the finish. That surprises me; I would expect it to cancel the query and return immediately. Anybody know what's going on?