why advanced filter "Resolved < startOfMonth()" doesn`t work?

[Олександр Третяк]

I have issue with "status = Resolved",
but I can`t find it with querry:
Resolved < startOfMonth()
or  < endOfWeek()
etc.

I can`t anderstand why?!...

[Олександр Третяк]

Thank you! I didn`t catch this diference bifore...(

[Ignacio Pulgar]

The Status Resolved is not the same thing than the Date Field Resolved (also known as resolutiondate).

You can set your workflow so that, on entering Resolved status, a resolution is automatically set (or, alternatively, popup a dialog to set a resolution).

As soon as an issue has a value on the field Resolution, the date in which it happened will be recorded in the resolved/resolutiondate field.

It is likely that the issue lacks a resolution date. Try this JQL query to check it:

status = Resolved AND resolution is EMPTY

[Nic Brough -Adaptavist-]

Status and resolution are two separate things.

Your query, translated into English, is "issues that have a resolution date before the start of the month". 

It has nothing to do with "status = resolved" directly - it's looking at the date that a resolution was set on the issue.  Which may or may not be the date the issue was moved into "resolved"