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[mysql] fix $__timeGroup rounding (#12469)

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* fix $__timeGroup rounding for mysql

* revert accidentally commented out line
This commit is contained in:
Sven Klemm 2018-07-01 15:59:05 +02:00 committed by Torkel Ödegaard
parent f017c04a65
commit 1601f6d17c
3 changed files with 19 additions and 12 deletions
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2
pkg/tsdb/mysql/macros.go
View File

@ -103,7 +103,7 @@ func (m *MySqlMacroEngine) evaluateMacro(name string, args []string) (string, er
m.Query.Model.Set("fillValue", floatVal)
}
}
return fmt.Sprintf("cast(cast(UNIX_TIMESTAMP(%s)/(%.0f) as signed)*%.0f as signed)", args[0], interval.Seconds(), interval.Seconds()), nil
return fmt.Sprintf("UNIX_TIMESTAMP(%s) DIV %.0f * %.0f", 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/mysql/macros_test.go
View File

@ -39,7 +39,7 @@ 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 cast(cast(UNIX_TIMESTAMP(time_column)/(300) as signed)*300 as signed)")
So(sql, ShouldEqual, "GROUP BY UNIX_TIMESTAMP(time_column) DIV 300 * 300")
})
Convey("interpolate __timeGroup function with spaces around arguments", func() {
@ -47,7 +47,7 @@ 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 cast(cast(UNIX_TIMESTAMP(time_column)/(300) as signed)*300 as signed)")
So(sql, ShouldEqual, "GROUP BY UNIX_TIMESTAMP(time_column) DIV 300 * 300")
})
Convey("interpolate __timeFilter function", func() {

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

@ -209,11 +209,12 @@ func TestMySQL(t *testing.T) {
So(queryResult.Error, ShouldBeNil)
points := queryResult.Series[0].Points
So(len(points), ShouldEqual, 6)
// without fill this should result in 4 buckets
So(len(points), ShouldEqual, 4)
dt := fromStart
for i := 0; i < 3; i++ {
for i := 0; i < 2; i++ {
aValue := points[i][0].Float64
aTime := time.Unix(int64(points[i][1].Float64)/1000, 0)
So(aValue, ShouldEqual, 15)
@ -221,9 +222,9 @@ func TestMySQL(t *testing.T) {
dt = dt.Add(5 * time.Minute)
}
// adjust for 5 minute gap
dt = dt.Add(5 * time.Minute)
for i := 3; i < 6; i++ {
// adjust for 10 minute gap between first and second set of points
dt = dt.Add(10 * time.Minute)
for i := 2; i < 4; i++ {
aValue := points[i][0].Float64
aTime := time.Unix(int64(points[i][1].Float64)/1000, 0)
So(aValue, ShouldEqual, 20)
@ -259,7 +260,7 @@ func TestMySQL(t *testing.T) {
dt := fromStart
for i := 0; i < 3; i++ {
for i := 0; i < 2; i++ {
aValue := points[i][0].Float64
aTime := time.Unix(int64(points[i][1].Float64)/1000, 0)
So(aValue, ShouldEqual, 15)
@ -267,17 +268,23 @@ func TestMySQL(t *testing.T) {
dt = dt.Add(5 * time.Minute)
}
// check for NULL values inserted by fill
So(points[2][0].Valid, ShouldBeFalse)
So(points[3][0].Valid, ShouldBeFalse)
// adjust for 5 minute gap
dt = dt.Add(5 * time.Minute)
for i := 4; i < 7; i++ {
// adjust for 10 minute gap between first and second set of points
dt = dt.Add(10 * time.Minute)
for i := 4; i < 6; i++ {
aValue := points[i][0].Float64
aTime := time.Unix(int64(points[i][1].Float64)/1000, 0)
So(aValue, ShouldEqual, 20)
So(aTime, ShouldEqual, dt)
dt = dt.Add(5 * time.Minute)
}
// check for NULL values inserted by fill
So(points[6][0].Valid, ShouldBeFalse)
})
Convey("When doing a metric query using timeGroup with float fill enabled", func() {