Test grafana with go-mysql-server and add integration tests with the queries used by the application itself.

[ajnavarro]

[jfontan]

Time format used by grafana to do filtering is not supported:

This query in grafana:

SELECT commit_author_when as time, commit_hash from commits WHERE $__timeFilter(commit_author_when) limit 100;

is converted to:

SELECT commit_author_when as time, commit_hash from commits WHERE commit_author_when BETWEEN '2018-10-18T05:22:25Z' AND '2018-10-18T11:22:25Z' limit 100;

Gives error:

ERROR 1105 (HY000): unknown error: value "2018-10-18T05:22:25Z" can't be converted to time.Time: parsing time "2018-10-18T05:22:25Z" as "2006-01-02 15:04:05": cannot parse "T05:22:25Z" as " "

It also seems to be the format used for time series as I am not able to use time data for graphs.

[jfontan]

It also executes show table commits but does not seem to be a valid mysql query.