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Re: bulk update very slow
Posted by: Rick James
Date: September 27, 2012 08:19PM

Buffer pool too small? See
http://mysql.rjweb.org/doc.php/memory

Add a "compound" index:
INDEX(aggregatorID, shortcodeID)
It may help significantly.

How big is the table? (SHOW TABLE STATUS) Sounds like it is 'large', in which case adding the INDEX will take some time.

Minor note: TINYTEXT is virtually useless, and slightly harmful in a few cases; recommend changing to VARCHAR(...) of some appropriate size.

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