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Merge pull request #12679 from svenklemm/postgres-metric-prefix

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Use metric column as prefix when returning multiple value columns
This commit is contained in:
Marcus Efraimsson
2018-07-30 14:50:11 +02:00
committed by GitHub
parent e4983cba2f 8a22129177
commit e648ed197f
13 changed files with 166 additions and 221 deletions
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73
devenv/dev-dashboards/datasource_tests_mssql_unittest.json
View File

@@ -64,7 +64,7 @@
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"iteration": 1532618879985,
"iteration": 1532949769359,
"links": [],
"panels": [
{
@@ -871,14 +871,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize') as time, \n measurement + ' - value one' as metric, \n avg(valueOne) as valueOne\nFROM\n metric_values \nWHERE\n $__timeFilter(time) AND\n ($metric = 'ALL' OR measurement = $metric)\nGROUP BY \n $__timeGroup(time, '$summarize'), \n measurement \nORDER BY 1",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize') as time, \n measurement as metric, \n avg(valueOne) as valueOne,\n avg(valueTwo) as valueTwo\nFROM\n metric_values \nWHERE\n $__timeFilter(time) AND\n ($metric = 'ALL' OR measurement = $metric)\nGROUP BY \n $__timeGroup(time, '$summarize'), \n measurement \nORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize') as time, \n measurement + ' - value two' as metric, \n avg(valueTwo) as valueTwo \nFROM\n metric_values\nWHERE\n $__timeFilter(time) AND\n ($metric = 'ALL' OR measurement = $metric)\nGROUP BY \n $__timeGroup(time, '$summarize'), \n measurement \nORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1067,14 +1061,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value one' as metric, valueOne FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value two' as metric, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1245,14 +1233,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value one' as metric, valueOne FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value two' as metric, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1423,14 +1405,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value one' as metric, valueOne FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value two' as metric, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1773,14 +1749,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value one' as metric, valueOne FROM metric_values \nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value two' as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1954,14 +1924,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value one' as metric, valueOne FROM metric_values \nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value two' as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -2135,14 +2099,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value one' as metric, valueOne FROM metric_values \nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value two' as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -2316,14 +2274,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value one' as metric, valueOne FROM metric_values\nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement + ' - value two' as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND ($metric = 'ALL' OR measurement = $metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -2460,7 +2412,10 @@
"refresh": false,
"schemaVersion": 16,
"style": "dark",
"tags": ["gdev", "mssql"],
"tags": [
"gdev",
"mssql"
],
"templating": {
"list": [
{
@@ -2587,5 +2542,5 @@
"timezone": "",
"title": "Datasource tests - MSSQL (unit test)",
"uid": "GlAqcPgmz",
"version": 58
"version": 3
}

73
devenv/dev-dashboards/datasource_tests_mysql_unittest.json
View File

@@ -64,7 +64,7 @@
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"iteration": 1532620354037,
"iteration": 1532949531280,
"links": [],
"panels": [
{
@@ -871,14 +871,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize') as time, \n CONCAT(measurement, ' - value one') as metric, \n avg(valueOne) as valueOne\nFROM\n metric_values \nWHERE\n $__timeFilter(time) AND\n measurement IN($metric)\nGROUP BY 1, 2\nORDER BY 1",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize') as time, \n measurement as metric, \n avg(valueOne) as valueOne,\n avg(valueTwo) as valueTwo\nFROM\n metric_values \nWHERE\n $__timeFilter(time) AND\n measurement IN($metric)\nGROUP BY 1, 2\nORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize') as time, \n CONCAT(measurement, ' - value two') as metric, \n avg(valueTwo) as valueTwo \nFROM\n metric_values\nWHERE\n $__timeFilter(time) AND\n measurement IN($metric)\nGROUP BY 1,2\nORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1061,14 +1055,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__time(time), CONCAT(measurement, ' - value one') as metric, valueOne FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"rawSql": "SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__time(time), CONCAT(measurement, ' - value two') as metric, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1239,14 +1227,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__time(time), CONCAT(measurement, ' - value one') as metric, valueOne FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"rawSql": "SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__time(time), CONCAT(measurement, ' - value two') as metric, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1417,14 +1399,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__time(time), CONCAT(measurement, ' - value one') as metric, valueOne FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"rawSql": "SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__time(time), CONCAT(measurement, ' - value two') as metric, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1593,14 +1569,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value one') as metric, valueOne FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"rawSql": "SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value two') as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1774,14 +1744,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value one') as metric, valueOne FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"rawSql": "SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value two') as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1955,14 +1919,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value one') as metric, valueOne FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"rawSql": "SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value two') as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -2136,14 +2094,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value one') as metric, valueOne FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"rawSql": "SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values WHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), CONCAT(measurement, ' - value two') as metric, valueTwo FROM metric_values \nWHERE $__timeFilter(time) AND measurement IN($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -2280,7 +2232,10 @@
"refresh": false,
"schemaVersion": 16,
"style": "dark",
"tags": ["gdev", "mysql"],
"tags": [
"gdev",
"mysql"
],
"templating": {
"list": [
{
@@ -2405,5 +2360,5 @@
"timezone": "",
"title": "Datasource tests - MySQL (unittest)",
"uid": "Hmf8FDkmz",
"version": 12
"version": 1
}

73
devenv/dev-dashboards/datasource_tests_postgres_unittest.json
View File

@@ -64,7 +64,7 @@
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"iteration": 1532619575136,
"iteration": 1532951521836,
"links": [],
"panels": [
{
@@ -871,14 +871,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize'), \n measurement || ' - value one' as metric, \n avg(\"valueOne\") as \"valueOne\"\nFROM\n metric_values \nWHERE\n $__timeFilter(time) AND\n measurement in($metric)\nGROUP BY 1, 2\nORDER BY 1",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize'), \n measurement, \n avg(\"valueOne\") as \"valueOne\",\n avg(\"valueTwo\") as \"valueTwo\"\nFROM\n metric_values \nWHERE\n $__timeFilter(time) AND\n measurement in($metric)\nGROUP BY 1, 2\nORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT \n $__timeGroup(time, '$summarize'), \n measurement || ' - value two' as metric, \n avg(\"valueTwo\") as \"valueTwo\"\nFROM\n metric_values \nWHERE\n $__timeFilter(time) AND\n measurement in($metric)\nGROUP BY 1, 2\nORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1049,14 +1043,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value one' as metric, \"valueOne\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement, \"valueOne\", \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value two' as metric, \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1227,14 +1215,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value one' as metric, \"valueOne\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement, \"valueOne\", \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value two' as metric, \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1405,14 +1387,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value one' as metric, \"valueOne\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement, \"valueOne\", \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value two' as metric, \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1581,14 +1557,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value one' as metric, \"valueOne\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement, \"valueOne\", \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value two' as metric, \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1762,14 +1732,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value one' as metric, \"valueOne\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement, \"valueOne\", \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value two' as metric, \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -1943,14 +1907,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value one' as metric, \"valueOne\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement, \"valueOne\", \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value two' as metric, \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -2124,14 +2082,8 @@
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value one' as metric, \"valueOne\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"rawSql": "SELECT $__timeEpoch(time), measurement, \"valueOne\", \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "A"
},
{
"alias": "",
"format": "time_series",
"rawSql": "SELECT $__timeEpoch(time), measurement || ' - value two' as metric, \"valueTwo\" FROM metric_values \nWHERE $__timeFilter(time) AND measurement in($metric) ORDER BY 1",
"refId": "B"
}
],
"thresholds": [],
@@ -2268,7 +2220,10 @@
"refresh": false,
"schemaVersion": 16,
"style": "dark",
"tags": ["gdev", "postgres"],
"tags": [
"gdev",
"postgres"
],
"templating": {
"list": [
{
@@ -2397,5 +2352,5 @@
"timezone": "",
"title": "Datasource tests - Postgres (unittest)",
"uid": "vHQdlVziz",
"version": 17
"version": 1
}

3
docs/sources/features/datasources/mssql.md
View File

@@ -148,7 +148,8 @@ The resulting table panel:
## Time series queries
If you set `Format as` to `Time series`, for use in Graph panel for example, then the query must must have a column named `time` that returns either a sql datetime or any numeric datatype representing unix epoch in seconds. You may return a column named `metric` that is used as metric name for the value column. Any column except `time` and `metric` is treated as a value column. If you omit the `metric` column, tha name of the value column will be the metric name. You may select multiple value columns, each will have its name as metric.
If you set `Format as` to `Time series`, for use in Graph panel for example, then the query must must have a column named `time` that returns either a sql datetime or any numeric datatype representing unix epoch in seconds. You may return a column named `metric` that is used as metric name for the value column. Any column except `time` and `metric` is treated as a value column. If you omit the `metric` column, the name of the value column will be the metric name. You may select multiple value columns, each will have its name as metric.
If you return multiple value columns and a column named `metric` then this column is used as prefix for the series name (only available in Grafana 5.3+).
**Example database table:**

1
docs/sources/features/datasources/mysql.md
View File

@@ -104,6 +104,7 @@ The resulting table panel:
If you set `Format as` to `Time series`, for use in Graph panel for example, then the query must return a column named `time` that returns either a sql datetime or any numeric datatype representing unix epoch.
Any column except `time` and `metric` is treated as a value column.
You may return a column named `metric` that is used as metric name for the value column.
If you return multiple value columns and a column named `metric` then this column is used as prefix for the series name (only available in Grafana 5.3+).
**Example with `metric` column:**

1
docs/sources/features/datasources/postgres.md
View File

@@ -102,6 +102,7 @@ The resulting table panel:
If you set `Format as` to `Time series`, for use in Graph panel for example, then the query must return a column named `time` that returns either a sql datetime or any numeric datatype representing unix epoch.
Any column except `time` and `metric` is treated as a value column.
You may return a column named `metric` that is used as metric name for the value column.
If you return multiple value columns and a column named `metric` then this column is used as prefix for the series name (only available in Grafana 5.3+).
**Example with `metric` column:**

77
pkg/tsdb/mssql/mssql_test.go
View File

@@ -610,6 +610,31 @@ func TestMSSQL(t *testing.T) {
So(queryResult.Series[1].Name, ShouldEqual, "valueTwo")
})
Convey("When doing a metric query with metric column and multiple value columns", func() {
query := &tsdb.TsdbQuery{
Queries: []*tsdb.Query{
{
Model: simplejson.NewFromAny(map[string]interface{}{
"rawSql": "SELECT $__timeEpoch(time), measurement, valueOne, valueTwo FROM metric_values ORDER BY 1",
"format": "time_series",
}),
RefId: "A",
},
},
}
resp, err := endpoint.Query(nil, nil, query)
So(err, ShouldBeNil)
queryResult := resp.Results["A"]
So(queryResult.Error, ShouldBeNil)
So(len(queryResult.Series), ShouldEqual, 4)
So(queryResult.Series[0].Name, ShouldEqual, "Metric A valueOne")
So(queryResult.Series[1].Name, ShouldEqual, "Metric A valueTwo")
So(queryResult.Series[2].Name, ShouldEqual, "Metric B valueOne")
So(queryResult.Series[3].Name, ShouldEqual, "Metric B valueTwo")
})
Convey("Given a stored procedure that takes @from and @to in epoch time", func() {
sql := `
IF object_id('sp_test_epoch') IS NOT NULL
@@ -635,21 +660,9 @@ func TestMSSQL(t *testing.T) {
SELECT
CAST(ROUND(DATEDIFF(second, '1970-01-01', time)/CAST(@dInterval as float), 0) as bigint)*@dInterval as time,
measurement + ' - value one' as metric,
avg(valueOne) as value
FROM
metric_values
WHERE
time BETWEEN DATEADD(s, @from, '1970-01-01') AND DATEADD(s, @to, '1970-01-01') AND
(@metric = 'ALL' OR measurement = @metric)
GROUP BY
CAST(ROUND(DATEDIFF(second, '1970-01-01', time)/CAST(@dInterval as float), 0) as bigint)*@dInterval,
measurement
UNION ALL
SELECT
CAST(ROUND(DATEDIFF(second, '1970-01-01', time)/CAST(@dInterval as float), 0) as bigint)*@dInterval as time,
measurement + ' - value two' as metric,
avg(valueTwo) as value
measurement as metric,
avg(valueOne) as valueOne,
avg(valueTwo) as valueTwo
FROM
metric_values
WHERE
@@ -692,10 +705,10 @@ func TestMSSQL(t *testing.T) {
So(queryResult.Error, ShouldBeNil)
So(len(queryResult.Series), ShouldEqual, 4)
So(queryResult.Series[0].Name, ShouldEqual, "Metric A - value one")
So(queryResult.Series[1].Name, ShouldEqual, "Metric B - value one")
So(queryResult.Series[2].Name, ShouldEqual, "Metric A - value two")
So(queryResult.Series[3].Name, ShouldEqual, "Metric B - value two")
So(queryResult.Series[0].Name, ShouldEqual, "Metric A valueOne")
So(queryResult.Series[1].Name, ShouldEqual, "Metric A valueTwo")
So(queryResult.Series[2].Name, ShouldEqual, "Metric B valueOne")
So(queryResult.Series[3].Name, ShouldEqual, "Metric B valueTwo")
})
})
@@ -724,21 +737,9 @@ func TestMSSQL(t *testing.T) {
SELECT
CAST(ROUND(DATEDIFF(second, '1970-01-01', time)/CAST(@dInterval as float), 0) as bigint)*@dInterval as time,
measurement + ' - value one' as metric,
avg(valueOne) as value
FROM
metric_values
WHERE
time BETWEEN @from AND @to AND
(@metric = 'ALL' OR measurement = @metric)
GROUP BY
CAST(ROUND(DATEDIFF(second, '1970-01-01', time)/CAST(@dInterval as float), 0) as bigint)*@dInterval,
measurement
UNION ALL
SELECT
CAST(ROUND(DATEDIFF(second, '1970-01-01', time)/CAST(@dInterval as float), 0) as bigint)*@dInterval as time,
measurement + ' - value two' as metric,
avg(valueTwo) as value
measurement as metric,
avg(valueOne) as valueOne,
avg(valueTwo) as valueTwo
FROM
metric_values
WHERE
@@ -781,10 +782,10 @@ func TestMSSQL(t *testing.T) {
So(queryResult.Error, ShouldBeNil)
So(len(queryResult.Series), ShouldEqual, 4)
So(queryResult.Series[0].Name, ShouldEqual, "Metric A - value one")
So(queryResult.Series[1].Name, ShouldEqual, "Metric B - value one")
So(queryResult.Series[2].Name, ShouldEqual, "Metric A - value two")
So(queryResult.Series[3].Name, ShouldEqual, "Metric B - value two")
So(queryResult.Series[0].Name, ShouldEqual, "Metric A valueOne")
So(queryResult.Series[1].Name, ShouldEqual, "Metric A valueTwo")
So(queryResult.Series[2].Name, ShouldEqual, "Metric B valueOne")
So(queryResult.Series[3].Name, ShouldEqual, "Metric B valueTwo")
})
})
})

25
pkg/tsdb/mysql/mysql_test.go
View File

@@ -634,6 +634,31 @@ func TestMySQL(t *testing.T) {
So(queryResult.Series[1].Name, ShouldEqual, "Metric B - value one")
})
Convey("When doing a metric query with metric column and multiple value columns", func() {
query := &tsdb.TsdbQuery{
Queries: []*tsdb.Query{
{
Model: simplejson.NewFromAny(map[string]interface{}{
"rawSql": `SELECT $__time(time), measurement as metric, valueOne, valueTwo FROM metric_values ORDER BY 1,2`,
"format": "time_series",
}),
RefId: "A",
},
},
}
resp, err := endpoint.Query(nil, nil, query)
So(err, ShouldBeNil)
queryResult := resp.Results["A"]
So(queryResult.Error, ShouldBeNil)
So(len(queryResult.Series), ShouldEqual, 4)
So(queryResult.Series[0].Name, ShouldEqual, "Metric A valueOne")
So(queryResult.Series[1].Name, ShouldEqual, "Metric A valueTwo")
So(queryResult.Series[2].Name, ShouldEqual, "Metric B valueOne")
So(queryResult.Series[3].Name, ShouldEqual, "Metric B valueTwo")
})
Convey("When doing a metric query grouping by time should return correct series", func() {
query := &tsdb.TsdbQuery{
Queries: []*tsdb.Query{

25
pkg/tsdb/postgres/postgres_test.go
View File

@@ -568,6 +568,31 @@ func TestPostgres(t *testing.T) {
So(queryResult.Series[1].Name, ShouldEqual, "Metric B - value one")
})
Convey("When doing a metric query with metric column and multiple value columns", func() {
query := &tsdb.TsdbQuery{
Queries: []*tsdb.Query{
{
Model: simplejson.NewFromAny(map[string]interface{}{
"rawSql": `SELECT $__timeEpoch(time), measurement as metric, "valueOne", "valueTwo" FROM metric_values ORDER BY 1`,
"format": "time_series",
}),
RefId: "A",
},
},
}
resp, err := endpoint.Query(nil, nil, query)
So(err, ShouldBeNil)
queryResult := resp.Results["A"]
So(queryResult.Error, ShouldBeNil)
So(len(queryResult.Series), ShouldEqual, 4)
So(queryResult.Series[0].Name, ShouldEqual, "Metric A valueOne")
So(queryResult.Series[1].Name, ShouldEqual, "Metric A valueTwo")
So(queryResult.Series[2].Name, ShouldEqual, "Metric B valueOne")
So(queryResult.Series[3].Name, ShouldEqual, "Metric B valueTwo")
})
Convey("When doing a metric query grouping by time should return correct series", func() {
query := &tsdb.TsdbQuery{
Queries: []*tsdb.Query{

20
pkg/tsdb/sql_engine.go
View File

@@ -75,6 +75,10 @@ var NewSqlQueryEndpoint = func(config *SqlQueryEndpointConfiguration, rowTransfo
queryEndpoint.timeColumnNames = config.TimeColumnNames
}
if len(config.MetricColumnTypes) > 0 {
queryEndpoint.metricColumnTypes = config.MetricColumnTypes
}
engineCache.Lock()
defer engineCache.Unlock()
@@ -229,6 +233,8 @@ func (e *sqlQueryEndpoint) transformToTimeSeries(query *Query, rows *core.Rows,
rowCount := 0
timeIndex := -1
metricIndex := -1
metricPrefix := false
var metricPrefixValue string
// check columns of resultset: a column named time is mandatory
// the first text column is treated as metric name unless a column named metric is present
@@ -247,6 +253,7 @@ func (e *sqlQueryEndpoint) transformToTimeSeries(query *Query, rows *core.Rows,
columnType := columnTypes[i].DatabaseTypeName()
for _, mct := range e.metricColumnTypes {
e.log.Info(mct)
if columnType == mct {
metricIndex = i
continue
@@ -256,6 +263,11 @@ func (e *sqlQueryEndpoint) transformToTimeSeries(query *Query, rows *core.Rows,
}
}
// use metric column as prefix with multiple value columns
if metricIndex != -1 && len(columnNames) > 3 {
metricPrefix = true
}
if timeIndex == -1 {
return fmt.Errorf("Found no column named %s", strings.Join(e.timeColumnNames, " or "))
}
@@ -301,7 +313,11 @@ func (e *sqlQueryEndpoint) transformToTimeSeries(query *Query, rows *core.Rows,
if metricIndex >= 0 {
if columnValue, ok := values[metricIndex].(string); ok {
metric = columnValue
if metricPrefix {
metricPrefixValue = columnValue
} else {
metric = columnValue
}
} else {
return fmt.Errorf("Column metric must be of type %s. metric column name: %s type: %s but datatype is %T", strings.Join(e.metricColumnTypes, ", "), columnNames[metricIndex], columnTypes[metricIndex].DatabaseTypeName(), values[metricIndex])
}
@@ -318,6 +334,8 @@ func (e *sqlQueryEndpoint) transformToTimeSeries(query *Query, rows *core.Rows,
if metricIndex == -1 {
metric = col
} else if metricPrefix {
metric = metricPrefixValue + " " + col
}
series, exist := pointsBySeries[metric]

6
public/app/plugins/datasource/mssql/partials/query.editor.html
View File

@@ -39,9 +39,11 @@
<div class="gf-form" ng-show="ctrl.showHelp">
<pre class="gf-form-pre alert alert-info">Time series:
- return column named time (in UTC), as a unix time stamp or any sql native date data type. You can use the macros below.
- optional: return column named metric to represent the series names.
- any other columns returned will be the time point values.
- if multiple value columns are present and a metric column is provided. the series name will be the combination of "MetricName - ValueColumnName".
Optional:
- return column named <i>metric</i> to represent the series name.
- If multiple value columns are returned the metric column is used as prefix.
- If no column named metric is found the column name of the value column is used as series name
Table:
- return any set of columns

5
public/app/plugins/datasource/mysql/partials/query.editor.html
View File

@@ -40,7 +40,10 @@
<pre class="gf-form-pre alert alert-info">Time series:
- return column named time or time_sec (in UTC), as a unix time stamp or any sql native date data type. You can use the macros below.
- return column(s) with numeric datatype as values
- (Optional: return column named <i>metric</i> to represent the series name. If no column named metric is found the column name of the value column is used as series name)
Optional:
- return column named <i>metric</i> to represent the series name.
- If multiple value columns are returned the metric column is used as prefix.
- If no column named metric is found the column name of the value column is used as series name
Table:
- return any set of columns

5
public/app/plugins/datasource/postgres/partials/query.editor.html
View File

@@ -40,7 +40,10 @@
<pre class="gf-form-pre alert alert-info">Time series:
- return column named <i>time</i> (UTC in seconds or timestamp)
- return column(s) with numeric datatype as values
- (Optional: return column named <i>metric</i> to represent the series name. If no column named metric is found the column name of the value column is used as series name)
Optional:
- return column named <i>metric</i> to represent the series name.
- If multiple value columns are returned the metric column is used as prefix.
- If no column named metric is found the column name of the value column is used as series name
Table:
- return any set of columns