IntenseWebs/grafana
3
0
Fork 0
mirror of https://github.com/grafana/grafana.git synced 2024-11-29 04:04:00 -06:00
Code Issues Packages Projects Releases Wiki Activity

mysql: docs for on time range change refresh mode for template queries

Browse Source
This commit is contained in:
Daniel Lee 2017-12-07 10:48:59 +01:00
parent 794c4b50d1
commit 5325972aa4
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
docs/sources/features/datasources/mysql.md
View File

@ -146,6 +146,12 @@ the hosts variable only show hosts from the current selected region with a query
SELECT hostname FROM my_host WHERE region IN($region)
```
To use time range dependent macros like `$__timeFilter(column)` in your query, the refresh mode of the template variable needs to be set to *On Time Range Change*.
```sql
SELECT event_name FROM event_log WHERE $__timeFilter(time_column)
```
### Using Variables in Queries
From Grafana 4.3.0 to 4.6.0, template variables are always quoted automatically so if it is a string value do not wrap them in quotes in where clauses.