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tsdb: improved floating point support when converting sql time column to epoch (ms)

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This commit is contained in:
Marcus Efraimsson
2018-04-10 16:36:00 +02:00
parent 9d84e6f31f
commit 97f67ddcb8
2 changed files with 15 additions and 12 deletions
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15
pkg/tsdb/sql_engine_test.go
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@@ -1,6 +1,7 @@
package tsdb
import (
"fmt"
"testing"
"time"
@@ -9,7 +10,7 @@ import (
func TestSqlEngine(t *testing.T) {
Convey("SqlEngine", t, func() {
dt := time.Date(2018, 3, 14, 21, 20, 6, 527e6, time.UTC)
dt := time.Date(2018, 3, 14, 21, 20, 6, int(527345*time.Microsecond), time.UTC)
Convey("Given row values with time.Time as time columns", func() {
var nilPointer *time.Time
@@ -24,7 +25,7 @@ func TestSqlEngine(t *testing.T) {
}
Convey("When converting them should return epoch time with millisecond precision ", func() {
expected := float64(dt.UnixNano() / 1e6)
expected := float64(dt.UnixNano()) / float64(time.Millisecond)
So(fixtures[0].(float64), ShouldEqual, expected)
So(fixtures[1].(float64), ShouldEqual, expected)
So(fixtures[2], ShouldBeNil)
@@ -132,8 +133,8 @@ func TestSqlEngine(t *testing.T) {
})
Convey("Given row values with float64 as time columns", func() {
tSeconds := float64(dt.Unix())
tMilliseconds := float64(dt.UnixNano() / 1e6)
tSeconds := float64(dt.UnixNano()) / float64(time.Second)
tMilliseconds := float64(dt.UnixNano()) / float64(time.Millisecond)
tNanoSeconds := float64(dt.UnixNano())
var nilPointer *float64
@@ -151,10 +152,12 @@ func TestSqlEngine(t *testing.T) {
}
Convey("When converting them should return epoch time with millisecond precision ", func() {
So(fixtures[0].(float64), ShouldEqual, tSeconds*1e3)
So(fixtures[1].(float64), ShouldEqual, tSeconds*1e3)
So(fixtures[0].(float64), ShouldEqual, tMilliseconds)
So(fixtures[1].(float64), ShouldEqual, tMilliseconds)
So(fixtures[2].(float64), ShouldEqual, tMilliseconds)
So(fixtures[3].(float64), ShouldEqual, tMilliseconds)
fmt.Println(fixtures[4].(float64))
fmt.Println(tMilliseconds)
So(fixtures[4].(float64), ShouldEqual, tMilliseconds)
So(fixtures[5].(float64), ShouldEqual, tMilliseconds)
So(fixtures[6], ShouldBeNil)