[7.x] [Metric Alerts] Add backend support for multiple expressions per alert (#58672)#58925

Merged

Zacqary merged 1 commit intoelastic:7.xfrom Zacqary:backport/7.x/pr-58672

Feb 28, 2020

+31-19

Commits on Feb 28, 2020

[Metric Alerts] Add backend support for multiple expressions per alert (elastic#58672 )

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