* stackdriver: add resource type to filter and group bys
* stackdriver: remove not used param
* stackdriver: refactor filter and group by code
* stackdriver: remove resource type if its already in filter list
* stackdriver: remove debug logging
* stackdriver: remove more debug logging
* stackdriver: append resource type to legend name if there are more than one type present in the response
* stackdriver: only make new request if filter has real value
* stackdriver: format legend support for resource type
* stackdriver: add resource type to documentation
* stackdriver: not returning promise from query function
* stackdriver: fix refactoring bug
* stackdriver: remove not used import
See,
$ gometalinter --vendor --deadline 10m --disable-all --enable=megacheck ./...
pkg/tsdb/stackdriver/stackdriver.go:171:26⚠️ regular expression does not contain any meta characters (SA6004) (megacheck)
I found this article benchmarking Replace vs Regexp,
https://medium.com/codezillas/golang-replace-vs-regexp-de4e48482f53
See,
$ gometalinter --vendor --deadline 10m --disable-all --enable=megacheck ./...
pkg/tsdb/graphite/graphite.go:167:28⚠️ regular expression does not contain any meta characters (SA6004) (megacheck)
pkg/tsdb/graphite/graphite.go:172:28⚠️ regular expression does not contain any meta characters (SA6004) (megacheck)
See,
$ gometalinter --vendor --deadline 6m --disable-all --enable=megacheck ./...
pkg/tsdb/mssql/mssql_test.go:695:33⚠️ do not pass a nil Context, even if a function permits it; pass context.TODO if you are unsure about which Context to use (SA1012) (megacheck)
pkg/tsdb/mysql/mysql_test.go:772:32⚠️ do not pass a nil Context, even if a function permits it; pass context.TODO if you are unsure about which Context to use (SA1012) (megacheck)
pkg/tsdb/postgres/postgres_test.go:704:33⚠️ do not pass a nil Context, even if a function permits it; pass context.TODO if you are unsure about which Context to use (SA1012) (megacheck)
Run queries for sql data sources for panels with multiple queries concurrently
Also make max open connections, max idle connections and max connection
lifetime configurable in the data source settings
