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[mssql] fix $__timeGroup rounding (#12470)

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* fix $__timeGroup rounding for mssql

* revert enabling of mssql integration tests
This commit is contained in:
Sven Klemm 2018-07-01 15:57:02 +02:00 committed by Torkel Ödegaard
parent c2c22c142b
commit f017c04a65
3 changed files with 18 additions and 12 deletions
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2
pkg/tsdb/mssql/macros.go
View File

@ -108,7 +108,7 @@ func (m *MsSqlMacroEngine) evaluateMacro(name string, args []string) (string, er
m.Query.Model.Set("fillValue", floatVal)
}
}
return fmt.Sprintf("CAST(ROUND(DATEDIFF(second, '1970-01-01', %s)/%.1f, 0) as bigint)*%.0f", args[0], interval.Seconds(), interval.Seconds()), nil
return fmt.Sprintf("FLOOR(DATEDIFF(second, '1970-01-01', %s)/%.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/mssql/macros_test.go
View File

@ -56,14 +56,14 @@ 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(ROUND(DATEDIFF(second, '1970-01-01', time_column)/300.0, 0) as bigint)*300")
So(sql, ShouldEqual, "GROUP BY FLOOR(DATEDIFF(second, '1970-01-01', time_column)/300)*300")
})
Convey("interpolate __timeGroup function with spaces around arguments", func() {
sql, err := engine.Interpolate(query, timeRange, "GROUP BY $__timeGroup(time_column , '5m')")
So(err, ShouldBeNil)
So(sql, ShouldEqual, "GROUP BY CAST(ROUND(DATEDIFF(second, '1970-01-01', time_column)/300.0, 0) as bigint)*300")
So(sql, ShouldEqual, "GROUP BY FLOOR(DATEDIFF(second, '1970-01-01', time_column)/300)*300")
})
Convey("interpolate __timeGroup function with fill (value = NULL)", func() {

24
pkg/tsdb/mssql/mssql_test.go
View File

@ -210,11 +210,12 @@ func TestMSSQL(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)
@ -222,9 +223,9 @@ func TestMSSQL(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)
@ -260,7 +261,7 @@ func TestMSSQL(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)
@ -268,17 +269,22 @@ func TestMSSQL(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)
}
So(points[6][0].Valid, ShouldBeFalse)
})
Convey("When doing a metric query using timeGroup with float fill enabled", func() {