Queries stuck in "copying to tmp table"

Posted by Parik on Stack Overflow See other posts from Stack Overflow or by Parik
Published on 2010-04-13T18:42:17Z Indexed on 2010/04/13 18:43 UTC
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I am running some sample tests against mysql, and finding that there are a bunch of queries which are stuck in "copying to tmp tables". They remain stuck in the same state. They are usually aggregate queries and I can kill those queries. But how can I find out what is causing them to be stuck? I am using mysql 5.1.42 with the innodb plugin.

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