Query builder: Unable to filter based on timespan or datetime ranges

[andresmgot]

What happened:

The builder quotes timespan or datetimes when comparing them in a filter. This syntax is only valid with the operators that compare exact values (e.g. == or !=) but it does not work with ranges:

To compare ranges, we need to explicitly convert them to the type, for example:

| where Duration > timespan('00:00:01')

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Screenshots

Anything else we need to know?:

Environment:

• Grafana version:
• Plugin version: 4.1.5
• OS Grafana is installed on:
• User OS & Browser:
• Others: