# what is pt-query-digest history table column ts\_min ts\_max mean?

**URL:** <https://forums.percona.com/t/what-is-pt-query-digest-history-table-column-ts-min-ts-max-mean/7108>\
**Category:** Percona Toolkit\
**Created:** [July 9, 2019, 11:03pm UTC](https://forums.percona.com/t/what-is-pt-query-digest-history-table-column-ts-min-ts-max-mean/7108 "2019-07-09T23:03:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fan](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/fan/32/40_2.png) [@Fan](https://forums.percona.com/u/Fan)\
**Post date:** [July 9, 2019, 11:03pm UTC](https://forums.percona.com/t/what-is-pt-query-digest-history-table-column-ts-min-ts-max-mean/7108/1 "2019-07-09T23:03:30Z")

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what is pt-query-digest history table column ts\_min ts\_max mean?

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**Author:** ![carlos.salguero](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/carlos.salguero/32/20_2.png) [@carlos.salguero](https://forums.percona.com/u/carlos.salguero)\
**Post date:** [July 10, 2019, 4:52am UTC](https://forums.percona.com/t/what-is-pt-query-digest-history-table-column-ts-min-ts-max-mean/7108/2 "2019-07-10T04:52:43Z")

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Hello,

They are the first and last timestamp for a query in the slow log file.

Regards

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<div class="post-metadata">

**Author:** ![Fan](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/fan/32/40_2.png) [@Fan](https://forums.percona.com/u/Fan)\
**Post date:** [July 10, 2019, 9:35am UTC](https://forums.percona.com/t/what-is-pt-query-digest-history-table-column-ts-min-ts-max-mean/7108/3 "2019-07-10T09:35:03Z")

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> [@carlos.salguero;54274](#):
>
> Hello,
> 
> They are the first and last timestamp for a query in the slow log file.
> 
> Regards

Thanks a lot