# prepared statements missing from performance schema?

**URL:** <https://forums.percona.com/t/prepared-statements-missing-from-performance-schema/4396>\
**Category:** Other MySQL® Questions\
**Created:** [September 15, 2015, 2:20pm UTC](https://forums.percona.com/t/prepared-statements-missing-from-performance-schema/4396 "2015-09-15T14:20:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![SuperQ](https://avatars.discourse-cdn.com/v4/letter/s/f14d63/32.png) [@SuperQ](https://forums.percona.com/u/SuperQ)\
**Post date:** [September 15, 2015, 2:20pm UTC](https://forums.percona.com/t/prepared-statements-missing-from-performance-schema/4396/1 "2015-09-15T14:20:11Z")

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Hey all,

I’ve been working on developing a new monitoring system for MySQL/percona server. I’ve been exporting metrics from performance\_schema.events\_statements\_summary\_by\_digest into our time series database.

Everything works well, except that it seems like prepared statements are not included in the counters provided by events\_statements\_summary\_by\_digest.

Has anyone else noticed this? I haven’t had time to look at the mysql source, but my guess is that the events\_statements\_summary\_by\_digest code is somewhere in the SQL parser, and prepared statements bypass this. ☹