partitioning - How to see which MySQL partitions are chosen? -


i'm running query against partitions table performance terrible. have feeling doing full table scan instead of scan of 2 or 3 partitions. partition key in clause.

is there way can check partitions looked @ answer query? there explain tell me partitions use?

any tips using partitions in joins?

i'm using mysql 5.6.11

thanks

try use

explain partitions  select *  tbl1  inner join tbl2 on tbl1.id=tbl2.id

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