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Incident report
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Resolution: Fixed
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Trivial
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None
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None
Here https://www.zabbix.com/documentation/3.0/manual/config/triggers/expression
we have an exact list:
avg, count, last, min and max functions support an additional, second time_shift parameter.
which does not include "sum" function (and maybe other too) from
https://www.zabbix.com/documentation/3.0/manual/appendix/triggers/functions
Such inconsistency should be fixed, it misleads zabbix users.