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docs: sql datasources min time interval

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Marcus Efraimsson
2018-09-06 13:52:16 +02:00
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docs/sources/features/datasources/postgres.md
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@@ -35,7 +35,9 @@ Name | Description
*TimescaleDB* | TimescaleDB is a time-series database built as a PostgreSQL extension. If enabled, Grafana will use `time_bucket` in the `$__timeGroup` macro and display TimescaleDB specific aggregate functions in the query builder (only available in Grafana 5.3+).
### Min time interval
A lower limit for the `$__interval` variable. Recommended to be set to write frequency, for example `1m` if your data is written every minute.
A lower limit for the [$__interval](/reference/templating/#the-interval-variable) and [$__interval_ms](/reference/templating/#the-interval-ms-variable) variables.
Recommended to be set to write frequency, for example `1m` if your data is written every minute.
This option can also be overridden/configured in a dashboard panel under data source options. It's important to note that this value **needs** to be formatted as a
number followed by a valid time identifier, e.g. `1m` (1 minute) or `30s` (30 seconds). The following time identifiers are supported: