mysql - InnoDB to MyISAM conversion strange performance behaviour -

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mysql - InnoDB to MyISAM conversion strange performance behaviour -

this may trivial question dont understand it, because afaik myisam should faster

i have database containing myisam tables except 1 - it's simple n:m joining table ~130k records. dont know why table innodb, wasnt intentional :) has indexes on both foreign keys pointing associated tables.

i tried alter table myisam, cause tought boost performance, instead, queries involved table 50x slower (i tried recreate indexes, didnt help). why that?

i suspect replacement indexes aren't getting used. have tried analysing query plan explain? should show whether indexes beingness used, , how.

just come in "explain [yourquery];" mysql console.

mysql performance innodb myisam

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