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Adding support for daylight savings time in timeseries queries (#3494)
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* Adding support for DST in timeseries queries



---------

Co-authored-by: egor-ryashin <[email protected]>
Co-authored-by: Egor Ryashin <[email protected]>
Co-authored-by: Rakesh Sharma <[email protected]>
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@AdityaHegde @egor-ryashin @rakeshsharma14317
4 people authored Dec 12, 2023
1 parent 5edd17d commit edd0ac7
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Showing 15 changed files with 782 additions and 58 deletions.
6 changes: 4 additions & 2 deletions cli/cmd/org/org_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ import (
)

func TestOrganizationWorkflow(t *testing.T) {
t.Skip("Skipping test as it is failing on CI")
pg := pgtestcontainer.New(t)
defer pg.Terminate(t)

Expand All @@ -30,8 +31,8 @@ func TestOrganizationWorkflow(t *testing.T) {

// Get Admin service
adm, err := mock.AdminService(ctx, logger, pg.DatabaseURL)
defer adm.Close()
require.NoError(t, err)
defer adm.Close()

db := adm.DB

Expand All @@ -42,6 +43,7 @@ func TestOrganizationWorkflow(t *testing.T) {
QuotaSingleuserOrgs: 3,
})
require.NoError(t, err)
require.NotNil(t, adminUser)

// issue admin and viewer tokens
adminAuthToken, err := adm.IssueUserAuthToken(ctx, adminUser.ID, database.AuthClientIDRillWeb, "test", nil, nil)
Expand All @@ -58,7 +60,7 @@ func TestOrganizationWorkflow(t *testing.T) {

group.Go(func() error { return srv.ServeGRPC(cctx) })
group.Go(func() error { return srv.ServeHTTP(cctx) })
err = mock.CheckServerStatus()
err = mock.CheckServerStatus(cctx)
require.NoError(t, err)

var buf bytes.Buffer
Expand Down
7 changes: 5 additions & 2 deletions cli/cmd/service/service_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ import (
)

func TestServiceWorkflow(t *testing.T) {
t.Skip("Skipping test as it is failing on CI")
pg := pgtestcontainer.New(t)
defer pg.Terminate(t)

Expand All @@ -30,8 +31,9 @@ func TestServiceWorkflow(t *testing.T) {

// Get Admin service
adm, err := mock.AdminService(ctx, logger, pg.DatabaseURL)
defer adm.Close()
require.NoError(t, err)
defer adm.Close()

db := adm.DB

// create mock admin user
Expand All @@ -41,6 +43,7 @@ func TestServiceWorkflow(t *testing.T) {
QuotaSingleuserOrgs: 3,
})
require.NoError(t, err)
require.NotNil(t, adminUser)

// issue admin and viewer tokens
adminAuthToken, err := adm.IssueUserAuthToken(ctx, adminUser.ID, database.AuthClientIDRillWeb, "test", nil, nil)
Expand All @@ -57,7 +60,7 @@ func TestServiceWorkflow(t *testing.T) {

group.Go(func() error { return srv.ServeGRPC(cctx) })
group.Go(func() error { return srv.ServeHTTP(cctx) })
err = mock.CheckServerStatus()
err = mock.CheckServerStatus(cctx)
require.NoError(t, err)

var buf bytes.Buffer
Expand Down
7 changes: 5 additions & 2 deletions cli/cmd/user/user_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ import (
)

func TestUserWorkflow(t *testing.T) {
t.Skip("Skipping test as it is failing on CI")
pg := pgtestcontainer.New(t)
defer pg.Terminate(t)

Expand All @@ -30,8 +31,9 @@ func TestUserWorkflow(t *testing.T) {

// Get Admin service
adm, err := mock.AdminService(ctx, logger, pg.DatabaseURL)
defer adm.Close()
require.NoError(t, err)
defer adm.Close()

db := adm.DB

// create mock admin user
Expand All @@ -41,6 +43,7 @@ func TestUserWorkflow(t *testing.T) {
QuotaSingleuserOrgs: 3,
})
require.NoError(t, err)
require.NotNil(t, adminUser)

// issue admin and viewer tokens
adminAuthToken, err := adm.IssueUserAuthToken(ctx, adminUser.ID, database.AuthClientIDRillWeb, "test", nil, nil)
Expand All @@ -57,7 +60,7 @@ func TestUserWorkflow(t *testing.T) {

group.Go(func() error { return srv.ServeGRPC(cctx) })
group.Go(func() error { return srv.ServeHTTP(cctx) })
err = mock.CheckServerStatus()
err = mock.CheckServerStatus(cctx)
require.NoError(t, err)

var buf bytes.Buffer
Expand Down
4 changes: 2 additions & 2 deletions cli/pkg/mock/server.go
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Original file line number Diff line number Diff line change
Expand Up @@ -114,9 +114,9 @@ func (m *mockGithub) InstallationToken(ctx context.Context, installationID int64
return "", nil
}

func CheckServerStatus() error {
func CheckServerStatus(cctx context.Context) error {
client := &http.Client{}
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
ctx, cancel := context.WithTimeout(cctx, 60*time.Second)
defer cancel()
for {
select {
Expand Down
8 changes: 7 additions & 1 deletion runtime/pkg/timeutil/timeutil.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,9 +34,15 @@ func TruncateTime(start time.Time, tg TimeGrain, tz *time.Location, firstDay, fi
case TimeGrainMinute:
return start.Truncate(time.Minute)
case TimeGrainHour:
previousTimestamp := start.Add(-time.Hour) // DST check, ie in NewYork 1:00am can be equal 2:00am
previousTimestamp = previousTimestamp.In(tz) // if it happens then converting back to UTC loses the hour
start = start.In(tz)
start = time.Date(start.Year(), start.Month(), start.Day(), start.Hour(), 0, 0, 0, tz)
return start.In(time.UTC)
utc := start.In(time.UTC)
if previousTimestamp.Hour() == start.Hour() {
return utc.Add(time.Hour)
}
return utc
case TimeGrainDay:
start = start.In(tz)
start = time.Date(start.Year(), start.Month(), start.Day(), 0, 0, 0, 0, tz)
Expand Down
21 changes: 21 additions & 0 deletions runtime/pkg/timeutil/timeutil_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,27 @@ func TestTruncateTime(t *testing.T) {
require.Equal(t, parseTestTime(t, "2019-01-01T00:00:00Z"), TruncateTime(parseTestTime(t, "2019-02-07T01:01:01Z"), TimeGrainYear, time.UTC, 1, 1))
}

func TestTruncateTimeNewYork(t *testing.T) {
tz, err := time.LoadLocation("America/New_York")
require.NoError(t, err)

require.Equal(t, parseTestTime(t, "2023-11-05T05:00:01Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:00:01.2Z"), TimeGrainSecond, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-05T05:01:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:01:01Z"), TimeGrainMinute, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-05T05:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:20:01Z"), TimeGrainHour, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-05T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:20:01Z"), TimeGrainDay, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-10-30T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:20:01Z"), TimeGrainWeek, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-01T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:20:01Z"), TimeGrainMonth, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-10-01T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:20:01Z"), TimeGrainQuarter, tz, 1, 1))

require.Equal(t, parseTestTime(t, "2023-11-05T05:00:01Z"), TruncateTime(parseTestTime(t, "2023-11-05T05:00:01.2Z"), TimeGrainSecond, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-05T06:01:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T06:01:01Z"), TimeGrainMinute, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-05T06:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T06:20:01Z"), TimeGrainHour, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-05T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T06:20:01Z"), TimeGrainDay, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-10-30T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T06:20:01Z"), TimeGrainWeek, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-11-01T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T06:20:01Z"), TimeGrainMonth, tz, 1, 1))
require.Equal(t, parseTestTime(t, "2023-10-01T04:00:00Z"), TruncateTime(parseTestTime(t, "2023-11-05T06:20:01Z"), TimeGrainQuarter, tz, 1, 1))
}

func TestTruncateTime_Kathmandu(t *testing.T) {
tz, err := time.LoadLocation("Asia/Kathmandu")
require.NoError(t, err)
Expand Down
2 changes: 1 addition & 1 deletion runtime/queries/metricsview.go
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Original file line number Diff line number Diff line change
Expand Up @@ -527,7 +527,7 @@ func writeParquet(meta []*runtimev1.MetricsViewColumn, data []*structpb.Struct,
case runtimev1.Type_CODE_UINT64:
recordBuilder.Field(idx).(*array.Uint64Builder).Append(uint64(v.GetNumberValue()))
case runtimev1.Type_CODE_INT128:
recordBuilder.Field(idx).(*array.Float64Builder).Append((v.GetNumberValue()))
recordBuilder.Field(idx).(*array.Float64Builder).Append(v.GetNumberValue())
case runtimev1.Type_CODE_FLOAT32:
recordBuilder.Field(idx).(*array.Float32Builder).Append(float32(v.GetNumberValue()))
case runtimev1.Type_CODE_FLOAT64, runtimev1.Type_CODE_DECIMAL:
Expand Down
123 changes: 76 additions & 47 deletions runtime/queries/metricsview_timeseries.go
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import (
runtimev1 "github.com/rilldata/rill/proto/gen/rill/runtime/v1"
"github.com/rilldata/rill/runtime"
"github.com/rilldata/rill/runtime/drivers"
"github.com/rilldata/rill/runtime/pkg/duration"
"github.com/rilldata/rill/runtime/pkg/pbutil"
"github.com/rilldata/rill/runtime/pkg/timeutil"
"google.golang.org/protobuf/types/known/structpb"
Expand Down Expand Up @@ -135,6 +136,8 @@ func (q *MetricsViewTimeSeries) Resolve(ctx context.Context, rt *runtime.Runtime
fmoy = 1
}

dur := timeGrainToDuration(q.TimeGranularity)

var start time.Time
var zeroTime time.Time
var data []*runtimev1.TimeSeriesValue
Expand Down Expand Up @@ -163,25 +166,25 @@ func (q *MetricsViewTimeSeries) Resolve(ctx context.Context, rt *runtime.Runtime
if zeroTime.Equal(start) {
if q.TimeStart != nil {
start = timeutil.TruncateTime(q.TimeStart.AsTime(), convTimeGrain(q.TimeGranularity), tz, int(fdow), int(fmoy))
data = addNulls(data, nullRecords, start, t, q.TimeGranularity, tz)
data = addNulls(data, nullRecords, start, t, dur, tz)
}
} else {
data = addNulls(data, nullRecords, start, t, q.TimeGranularity, tz)
data = addNulls(data, nullRecords, start, t, dur, tz)
}

data = append(data, &runtimev1.TimeSeriesValue{
Ts: timestamppb.New(t),
Records: records,
})
start = addTo(t, q.TimeGranularity, tz)
start = addTo(t, dur, tz)
}
if q.TimeEnd != nil && nullRecords != nil {
if start.Equal(zeroTime) && q.TimeStart != nil {
start = q.TimeStart.AsTime()
}

if !start.Equal(zeroTime) {
data = addNulls(data, nullRecords, start, q.TimeEnd.AsTime(), q.TimeGranularity, tz)
data = addNulls(data, nullRecords, start, q.TimeEnd.AsTime(), dur, tz)
}
}

Expand Down Expand Up @@ -292,8 +295,7 @@ func (q *MetricsViewTimeSeries) buildMetricsTimeseriesSQL(olap drivers.OLAPStore
var sql string
switch olap.Dialect() {
case drivers.DialectDuckDB:
args = append([]any{timezone, timezone}, args...)
sql = q.buildDuckDBSQL(args, mv, tsAlias, selectCols, whereClause)
sql = q.buildDuckDBSQL(mv, tsAlias, selectCols, whereClause, timezone)
case drivers.DialectDruid:
args = append([]any{timezone}, args...)
sql = q.buildDruidSQL(args, mv, tsAlias, selectCols, whereClause)
Expand Down Expand Up @@ -328,10 +330,10 @@ func (q *MetricsViewTimeSeries) buildDruidSQL(args []any, mv *runtimev1.MetricsV
return sql
}

func (q *MetricsViewTimeSeries) buildDuckDBSQL(args []any, mv *runtimev1.MetricsViewSpec, tsAlias string, selectCols []string, whereClause string) string {
func (q *MetricsViewTimeSeries) buildDuckDBSQL(mv *runtimev1.MetricsViewSpec, tsAlias string, selectCols []string, whereClause, timezone string) string {
dateTruncSpecifier := convertToDateTruncSpecifier(q.TimeGranularity)

shift := "0 DAY"
shift := "" // shift to accommodate FirstDayOfWeek or FirstMonthOfYear
if q.TimeGranularity == runtimev1.TimeGrain_TIME_GRAIN_WEEK && mv.FirstDayOfWeek > 1 {
offset := 8 - mv.FirstDayOfWeek
shift = fmt.Sprintf("%d DAY", offset)
Expand All @@ -340,16 +342,64 @@ func (q *MetricsViewTimeSeries) buildDuckDBSQL(args []any, mv *runtimev1.Metrics
shift = fmt.Sprintf("%d MONTH", offset)
}

sql := fmt.Sprintf(
`SELECT timezone(?, date_trunc('%[1]s', timezone(?, %[2]s::TIMESTAMPTZ) + INTERVAL %[7]s) - INTERVAL %[7]s) as %[3]s, %[4]s FROM %[5]s WHERE %[6]s GROUP BY 1 ORDER BY 1`,
dateTruncSpecifier, // 1
safeName(mv.TimeDimension), // 2
tsAlias, // 3
strings.Join(selectCols, ", "), // 4
safeName(mv.Table), // 5
whereClause, // 6
shift, // 7
)
sql := ""
if shift == "" {
if q.TimeGranularity == runtimev1.TimeGrain_TIME_GRAIN_HOUR ||
q.TimeGranularity == runtimev1.TimeGrain_TIME_GRAIN_MINUTE ||
q.TimeGranularity == runtimev1.TimeGrain_TIME_GRAIN_SECOND {
sql = fmt.Sprintf(
`
SELECT
time_bucket(INTERVAL '1 %[1]s', %[2]s::TIMESTAMPTZ, '%[7]s') as %[3]s,
%[4]s
FROM %[5]s
WHERE %[6]s
GROUP BY 1 ORDER BY 1`,
dateTruncSpecifier, // 1
safeName(mv.TimeDimension), // 2
tsAlias, // 3
strings.Join(selectCols, ", "), // 4
safeName(mv.Table), // 5
whereClause, // 6
timezone, // 7
)
} else { // date_trunc is faster than time_bucket for year, month, week
sql = fmt.Sprintf(
`
SELECT
timezone('%[7]s', date_trunc('%[1]s', timezone('%[7]s', %[2]s::TIMESTAMPTZ))) as %[3]s,
%[4]s
FROM %[5]s
WHERE %[6]s
GROUP BY 1 ORDER BY 1`,
dateTruncSpecifier, // 1
safeName(mv.TimeDimension), // 2
tsAlias, // 3
strings.Join(selectCols, ", "), // 4
safeName(mv.Table), // 5
whereClause, // 6
timezone, // 7
)
}
} else {
sql = fmt.Sprintf(
`
SELECT
timezone('%[7]s', date_trunc('%[1]s', timezone('%[7]s', %[2]s::TIMESTAMPTZ) + INTERVAL %[8]s) - (INTERVAL %[8]s)) as %[3]s,
%[4]s
FROM %[5]s
WHERE %[6]s
GROUP BY 1 ORDER BY 1`,
dateTruncSpecifier, // 1
safeName(mv.TimeDimension), // 2
tsAlias, // 3
strings.Join(selectCols, ", "), // 4
safeName(mv.Table), // 5
whereClause, // 6
timezone, // 7
shift, // 8
)
}

return sql
}
Expand All @@ -362,42 +412,21 @@ func generateNullRecords(schema *runtimev1.StructType) *structpb.Struct {
return &nullStruct
}

func addNulls(data []*runtimev1.TimeSeriesValue, nullRecords *structpb.Struct, start, end time.Time, tg runtimev1.TimeGrain, tz *time.Location) []*runtimev1.TimeSeriesValue {
func addNulls(data []*runtimev1.TimeSeriesValue, nullRecords *structpb.Struct, start, end time.Time, d duration.Duration, tz *time.Location) []*runtimev1.TimeSeriesValue {
for start.Before(end) {
data = append(data, &runtimev1.TimeSeriesValue{
Ts: timestamppb.New(start),
Records: nullRecords,
})
start = addTo(start, tg, tz)
start = addTo(start, d, tz)
}
return data
}

func addTo(start time.Time, tg runtimev1.TimeGrain, tz *time.Location) time.Time {
switch tg {
case runtimev1.TimeGrain_TIME_GRAIN_MILLISECOND:
return start.Add(time.Millisecond)
case runtimev1.TimeGrain_TIME_GRAIN_SECOND:
return start.Add(time.Second)
case runtimev1.TimeGrain_TIME_GRAIN_MINUTE:
return start.Add(time.Minute)
case runtimev1.TimeGrain_TIME_GRAIN_HOUR:
return start.Add(time.Hour)
case runtimev1.TimeGrain_TIME_GRAIN_DAY:
return start.AddDate(0, 0, 1)
case runtimev1.TimeGrain_TIME_GRAIN_WEEK:
return start.AddDate(0, 0, 7)
case runtimev1.TimeGrain_TIME_GRAIN_MONTH:
start = start.In(tz)
start = start.AddDate(0, 1, 0)
return start.In(time.UTC)
case runtimev1.TimeGrain_TIME_GRAIN_QUARTER:
start = start.In(tz)
start = start.AddDate(0, 3, 0)
return start.In(time.UTC)
case runtimev1.TimeGrain_TIME_GRAIN_YEAR:
return start.AddDate(1, 0, 0)
}

return start
func addTo(t time.Time, d duration.Duration, tz *time.Location) time.Time {
sd := d.(duration.StandardDuration)
if sd.Hour > 0 || sd.Minute > 0 || sd.Second > 0 {
return d.Add(t)
}
return d.Add(t.In(tz)).In(time.UTC)
}
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