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innodb fetch time, not query execution time

If this is the query: SELECT profile_id FROM clients WHERE is_vip = 0 Then, INDEX(is_vip, profile_id) is the best you can do to improve speed. You say, "Both profile_id and is_vip have indexes&...
Rick James's user avatar
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1 vote

innodb fetch time, not query execution time

Networks are fast, but not infinitely fast. There is a rate of data transfer over a network, and you can do the math. For example, 4.6M rows, assuming on average 40 bytes per row, that's about 175MB. ...
Bill Karwin's user avatar
1 vote

Amazon Aurora RDS - invalid undo record

Ultimately, unfortunately this required us reaching out to AWS support (and paying the 10% Business Support Plan tithe). They determined that there was corruption in undo records associated with one ...
Tyler Sebastian's user avatar

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