Need a rough estimate on how long LEFT JOIN on two 6 million row tables would take.

Posted by JobGovernor on Stack Overflow See other posts from Stack Overflow or by JobGovernor
Published on 2010-04-08T11:43:17Z Indexed on 2010/04/08 11:53 UTC
Read the original article Hit count: 132

Filed under:

mysql

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left-join

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query-optimization

Hello, well the title says it all. Does anyone have an idea? Would need to lock the table for that long on production site, so it is kinda important.

Also, do you have any suggestion how such query could be optimized?

Thanks!

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