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remove alias from postgres $__timeGroup macro

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This commit is contained in:
Sven Klemm
2018-07-30 13:23:29 +02:00
parent f1f0400769
commit 43295f9c18
5 changed files with 8 additions and 8 deletions
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2
docs/sources/features/datasources/postgres.md
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@ -60,7 +60,7 @@ Macro example | Description
*$__timeFilter(dateColumn)* | Will be replaced by a time range filter using the specified column name. For example, *dateColumn BETWEEN '2017-04-21T05:01:17Z' AND '2017-04-21T05:06:17Z'*
*$__timeFrom()* | Will be replaced by the start of the currently active time selection. For example, *'2017-04-21T05:01:17Z'*
*$__timeTo()* | Will be replaced by the end of the currently active time selection. For example, *'2017-04-21T05:06:17Z'*
*$__timeGroup(dateColumn,'5m')* | Will be replaced by an expression usable in GROUP BY clause. For example, *(extract(epoch from dateColumn)/300)::bigint*300 AS time*
*$__timeGroup(dateColumn,'5m')* | Will be replaced by an expression usable in GROUP BY clause. For example, *(extract(epoch from dateColumn)/300)::bigint*300*
*$__timeGroup(dateColumn,'5m', 0)* | Same as above but with a fill parameter so all null values will be converted to the fill value (all null values would be set to zero using this example).
*$__unixEpochFilter(dateColumn)* | Will be replaced by a time range filter using the specified column name with times represented as unix timestamp. For example, *dateColumn >= 1494410783 AND dateColumn <= 1494497183*
*$__unixEpochFrom()* | Will be replaced by the start of the currently active time selection as unix timestamp. For example, *1494410783*

2
pkg/tsdb/postgres/macros.go
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@ -109,7 +109,7 @@ func (m *postgresMacroEngine) evaluateMacro(name string, args []string) (string,
m.query.Model.Set("fillValue", floatVal)
}
}
return fmt.Sprintf("floor(extract(epoch from %s)/%v)*%v AS time", args[0], interval.Seconds(), interval.Seconds()), nil
return fmt.Sprintf("floor(extract(epoch from %s)/%v)*%v", args[0], interval.Seconds(), interval.Seconds()), nil
case "__unixEpochFilter":
if len(args) == 0 {
return "", fmt.Errorf("missing time column argument for macro %v", name)

4
pkg/tsdb/postgres/macros_test.go
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@ -53,7 +53,7 @@ func TestMacroEngine(t *testing.T) {
sql, err := engine.Interpolate(query, timeRange, "GROUP BY $__timeGroup(time_column,'5m')")
So(err, ShouldBeNil)
So(sql, ShouldEqual, "GROUP BY floor(extract(epoch from time_column)/300)*300 AS time")
So(sql, ShouldEqual, "GROUP BY floor(extract(epoch from time_column)/300)*300")
})
Convey("interpolate __timeGroup function with spaces between args", func() {
@ -61,7 +61,7 @@ func TestMacroEngine(t *testing.T) {
sql, err := engine.Interpolate(query, timeRange, "GROUP BY $__timeGroup(time_column , '5m')")
So(err, ShouldBeNil)
So(sql, ShouldEqual, "GROUP BY floor(extract(epoch from time_column)/300)*300 AS time")
So(sql, ShouldEqual, "GROUP BY floor(extract(epoch from time_column)/300)*300")
})
Convey("interpolate __timeTo function", func() {

6
pkg/tsdb/postgres/postgres_test.go
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@ -183,7 +183,7 @@ func TestPostgres(t *testing.T) {
Queries: []*tsdb.Query{
{
Model: simplejson.NewFromAny(map[string]interface{}{
"rawSql": "SELECT $__timeGroup(time, '5m'), avg(value) as value FROM metric GROUP BY 1 ORDER BY 1",
"rawSql": "SELECT $__timeGroup(time, '5m') AS time, avg(value) as value FROM metric GROUP BY 1 ORDER BY 1",
"format": "time_series",
}),
RefId: "A",
@ -227,7 +227,7 @@ func TestPostgres(t *testing.T) {
Queries: []*tsdb.Query{
{
Model: simplejson.NewFromAny(map[string]interface{}{
"rawSql": "SELECT $__timeGroup(time, '5m', NULL), avg(value) as value FROM metric GROUP BY 1 ORDER BY 1",
"rawSql": "SELECT $__timeGroup(time, '5m', NULL) AS time, avg(value) as value FROM metric GROUP BY 1 ORDER BY 1",
"format": "time_series",
}),
RefId: "A",
@ -281,7 +281,7 @@ func TestPostgres(t *testing.T) {
Queries: []*tsdb.Query{
{
Model: simplejson.NewFromAny(map[string]interface{}{
"rawSql": "SELECT $__timeGroup(time, '5m', 1.5), avg(value) as value FROM metric GROUP BY 1 ORDER BY 1",
"rawSql": "SELECT $__timeGroup(time, '5m', 1.5) AS time, avg(value) as value FROM metric GROUP BY 1 ORDER BY 1",
"format": "time_series",
}),
RefId: "A",

2
public/app/plugins/datasource/postgres/partials/query.editor.html
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@ -53,7 +53,7 @@ Macros:
- $__timeEpoch -&gt; extract(epoch from column) as "time"
- $__timeFilter(column) -&gt; column BETWEEN '2017-04-21T05:01:17Z' AND '2017-04-21T05:01:17Z'
- $__unixEpochFilter(column) -&gt; column &gt;= 1492750877 AND column &lt;= 1492750877
- $__timeGroup(column,'5m') -&gt; (extract(epoch from column)/300)::bigint*300 AS time
- $__timeGroup(column,'5m') -&gt; (extract(epoch from column)/300)::bigint*300
Example of group by and order by with $__timeGroup:
SELECT