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Partitioning for improving "INSERT .. ON DUPLICATE KEY UPDATE"
Posted by: Jon Jacob
Date: July 20, 2014 07:50AM

Hello,

I'm performing ~7 million "Insert ... On Duplicate Key Update" statements on a table.

At first I'm getting like ~1000 executed queries per second

Toward the end it has slowed down to ~1 per second...

The table in question has two fields that are unique keys:
date (text as yyyy-mm-dd)
pageid (numeric)

The update portion simply increments a counter field if there is already a date/pageid present.

Could a partition help with the degraded performance? I'm still reading up on how a table partition differs from a field index, but that's another topic. But am I barking up the wrong tree thinking partitions would help with this scenario?

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Partitioning for improving "INSERT .. ON DUPLICATE KEY UPDATE"
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July 20, 2014 07:50AM


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