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engine_test.go
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engine_test.go
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package logql
import (
"bytes"
"context"
"errors"
"fmt"
"math"
"regexp"
"strings"
"testing"
"time"
"github.com/grafana/loki/v3/pkg/logqlmodel/metadata"
"github.com/grafana/loki/v3/pkg/querier/plan"
"github.com/grafana/loki/v3/pkg/querier/queryrange/queryrangebase/definitions"
"github.com/go-kit/log"
"github.com/grafana/dskit/user"
json "github.com/json-iterator/go"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/promql"
promql_parser "github.com/prometheus/prometheus/promql/parser"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/grafana/loki/v3/pkg/iter"
"github.com/grafana/loki/v3/pkg/logproto"
"github.com/grafana/loki/v3/pkg/logql/syntax"
"github.com/grafana/loki/v3/pkg/logqlmodel"
"github.com/grafana/loki/v3/pkg/logqlmodel/stats"
"github.com/grafana/loki/v3/pkg/util"
"github.com/grafana/loki/v3/pkg/util/httpreq"
)
var (
testSize = int64(300)
ErrMock = errors.New("error")
ErrMockMultiple = util.MultiError{ErrMock, ErrMock}
)
func TestEngine_LogsRateUnwrap(t *testing.T) {
t.Parallel()
for _, test := range []struct {
qs string
ts time.Time
direction logproto.Direction
limit uint32
// an array of data per params will be returned by the querier.
// This is to cover logql that requires multiple queries.
data interface{}
params interface{}
expected interface{}
}{
{
`rate({app="foo"} | unwrap foo [30s])`,
time.Unix(60, 0),
logproto.FORWARD,
10,
// create a stream {app="foo"} with 300 samples starting at 46s and ending at 345s with a constant value of 1
[][]logproto.Series{
// 30s range the lower bound of the range is not inclusive only 15 samples will make it 60 included
{newSeries(testSize, offset(46, constantValue(1)), `{app="foo"}`)},
},
[]SelectSampleParams{
{
&logproto.SampleQueryRequest{
Start: time.Unix(30, 0),
End: time.Unix(60, 0),
Selector: `rate({app="foo"} | unwrap foo[30s])`,
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`rate({app="foo"} | unwrap foo[30s])`),
},
},
},
},
// there are 15 samples (from 47 to 61) matched from the generated series
// SUM(n=47, 61, 1) = 15
// 15 / 30 = 0.5
promql.Vector{promql.Sample{T: 60 * 1000, F: 0.5, Metric: labels.FromStrings("app", "foo")}},
},
{
`rate({app="foo"} | unwrap foo [30s])`,
time.Unix(60, 0),
logproto.FORWARD,
10,
// create a stream {app="foo"} with 300 samples starting at 46s and ending at 345s with an increasing value by 1
[][]logproto.Series{
// 30s range the lower bound of the range is not inclusive only 15 samples will make it 60 included
{newSeries(testSize, offset(46, incValue(1)), `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{
Start: time.Unix(30, 0),
End: time.Unix(60, 0),
Selector: `rate({app="foo"} | unwrap foo[30s])`,
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`rate({app="foo"} | unwrap foo[30s])`),
},
}},
},
// there are 15 samples (from 47 to 61) matched from the generated series
// SUM(n=47, 61, n) = (47+48+...+61) = 810
// 810 / 30 = 27
promql.Vector{promql.Sample{T: 60 * 1000, F: 27, Metric: labels.FromStrings("app", "foo")}},
},
{
`rate_counter({app="foo"} | unwrap foo [30s])`,
time.Unix(60, 0),
logproto.FORWARD,
10,
// create a stream {app="foo"} with 300 samples starting at 46s and ending at 345s with a constant value of 1
[][]logproto.Series{
// 30s range the lower bound of the range is not inclusive only 15 samples will make it 60 included
{newSeries(testSize, offset(46, constantValue(1)), `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{
Start: time.Unix(30, 0),
End: time.Unix(60, 0),
Selector: `rate_counter({app="foo"} | unwrap foo[30s])`,
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`rate_counter({app="foo"} | unwrap foo[30s])`),
},
}},
},
// there are 15 samples (from 47 to 61) matched from the generated series
// (1 - 1) / 30 = 0
promql.Vector{promql.Sample{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo")}},
},
{
`rate_counter({app="foo"} | unwrap foo [30s])`,
time.Unix(60, 0),
logproto.FORWARD,
10,
// create a stream {app="foo"} with 300 samples starting at 46s and ending at 345s with an increasing value by 1
[][]logproto.Series{
// 30s range the lower bound of the range is not inclusive only 15 samples will make it 60 included
{newSeries(testSize, offset(46, incValue(1)), `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(30, 0), End: time.Unix(60, 0), Selector: `rate_counter({app="foo"} | unwrap foo[30s])`}},
},
// there are 15 samples (from 47 to 61) matched from the generated series
// (61 - 47) / 30 = 0.4666
promql.Vector{promql.Sample{T: 60 * 1000, F: 0.46666766666666665, Metric: labels.FromStrings("app", "foo")}},
},
} {
test := test
t.Run(fmt.Sprintf("%s %s", test.qs, test.direction), func(t *testing.T) {
t.Parallel()
eng := NewEngine(EngineOpts{}, newQuerierRecorder(t, test.data, test.params), NoLimits, log.NewNopLogger())
params, err := NewLiteralParams(test.qs, test.ts, test.ts, 0, 0, test.direction, test.limit, nil, nil)
require.NoError(t, err)
q := eng.Query(params)
res, err := q.Exec(user.InjectOrgID(context.Background(), "fake"))
if expectedError, ok := test.expected.(error); ok {
assert.Equal(t, expectedError.Error(), err.Error())
} else {
if err != nil {
t.Fatal(err)
}
assert.Equal(t, test.expected, res.Data)
}
})
}
}
func TestEngine_InstantQuery(t *testing.T) {
t.Parallel()
for _, test := range []struct {
qs string
ts time.Time
direction logproto.Direction
limit uint32
// an array of data per params will be returned by the querier.
// This is to cover logql that requires multiple queries.
data interface{}
params interface{}
expected interface{}
}{
{
`rate({app="foo"} |~".+bar" [1m])`, time.Unix(60, 0), logproto.BACKWARD, 10,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app="foo"}|~".+bar"[1m])`}},
},
promql.Vector{promql.Sample{T: 60 * 1000, F: 1, Metric: labels.FromStrings("app", "foo")}},
},
{
`rate({app="foo"}[30s])`, time.Unix(60, 0), logproto.FORWARD, 10,
[][]logproto.Series{
// 30s range the lower bound of the range is not inclusive only 15 samples will make it 60 included
{newSeries(testSize, offset(46, identity), `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(30, 0), End: time.Unix(60, 0), Selector: `rate({app="foo"}[30s])`}},
},
promql.Vector{promql.Sample{T: 60 * 1000, F: 0.5, Metric: labels.FromStrings("app", "foo")}},
},
{
`rate({app="foo"} | unwrap foo [30s])`, time.Unix(60, 0), logproto.FORWARD, 10,
[][]logproto.Series{
// 30s range the lower bound of the range is not inclusive only 15 samples will make it 60 included
{newSeries(testSize, offset(46, constantValue(2)), `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(30, 0), End: time.Unix(60, 0), Selector: `rate({app="foo"} | unwrap foo[30s])`}},
},
// SUM(n=46, 61, 2) = 30
// 30 / 30 = 1
promql.Vector{promql.Sample{T: 60 * 1000, F: 1.0, Metric: labels.FromStrings("app", "foo")}},
},
{
`count_over_time({app="foo"} |~".+bar" [1m])`, time.Unix(60, 0), logproto.BACKWARD, 10,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`)}, // 10 , 20 , 30 .. 60 = 6 total
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="foo"}|~".+bar"[1m])`}},
},
promql.Vector{promql.Sample{T: 60 * 1000, F: 6, Metric: labels.FromStrings("app", "foo")}},
},
{
`first_over_time({app="foo"} |~".+bar" | unwrap foo [1m])`, time.Unix(60, 0), logproto.BACKWARD, 10,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`)}, // 10 , 20 , 30 .. 60 = 6 total
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `first_over_time({app="foo"}|~".+bar"| unwrap foo [1m])`}},
},
promql.Vector{promql.Sample{T: 60 * 1000, F: 1, Metric: labels.FromStrings("app", "foo")}},
},
{
`count_over_time({app="foo"} |~".+bar" [1m] offset 30s)`, time.Unix(90, 0), logproto.BACKWARD, 10,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`)}, // 10 , 20 , 30 .. 60 = 6 total
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="foo"}|~".+bar"[1m] offset 30s)`}},
},
promql.Vector{promql.Sample{T: 90 * 1000, F: 6, Metric: labels.FromStrings("app", "foo")}},
},
{
`count_over_time(({app="foo"} |~".+bar")[5m])`, time.Unix(5*60, 0), logproto.BACKWARD, 10,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`)}, // 10 , 20 , 30 .. 300 = 30 total
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(5*60, 0), Selector: `count_over_time({app="foo"}|~".+bar"[5m])`}},
},
promql.Vector{promql.Sample{T: 5 * 60 * 1000, F: 30, Metric: labels.FromStrings("app", "foo")}},
},
{
`absent_over_time(({app="foo"} |~".+bar")[5m])`, time.Unix(5*60, 0), logproto.BACKWARD, 10,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`)}, // 10 , 20 , 30 .. 300 = 30 total
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(5*60, 0), Selector: `absent_over_time({app="foo"}|~".+bar"[5m])`}},
},
promql.Vector{},
},
{
`absent_over_time(({app="foo"} |~".+bar")[5m])`, time.Unix(5*60, 0), logproto.BACKWARD, 10,
[][]logproto.Series{},
[]SelectSampleParams{},
promql.Vector{promql.Sample{T: 5 * 60 * 1000, F: 1, Metric: labels.FromStrings("app", "foo")}},
},
{
`avg(count_over_time({app=~"foo|bar"} |~".+bar" [1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo"}`),
newSeries(testSize, factor(10, identity), `{app="bar"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
promql.Sample{T: 60 * 1000, F: 6, Metric: labels.EmptyLabels()},
},
},
{
`min(rate({app=~"foo|bar"} |~".+bar" [1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, factor(10, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
promql.Sample{T: 60 * 1000, F: 0.1, Metric: labels.EmptyLabels()},
},
},
{
`max by (app) (rate({app=~"foo|bar"} |~".+bar" [1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, factor(5, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
promql.Sample{T: 60 * 1000, F: 0.2, Metric: labels.FromStrings("app", "bar")},
promql.Sample{T: 60 * 1000, F: 0.1, Metric: labels.FromStrings("app", "foo")},
},
},
{
`max(rate({app=~"foo|bar"} |~".+bar" [1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, factor(5, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
promql.Sample{T: 60 * 1000, F: 0.2, Metric: labels.EmptyLabels()},
},
},
{
`sum(rate({app=~"foo|bar"} |~".+bar" [1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(5, identity), `{app="foo"}`), newSeries(testSize, factor(5, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum(rate({app=~"foo|bar"} |~".+bar" [1m]))`}},
},
promql.Vector{
promql.Sample{T: 60 * 1000, F: 0.4, Metric: labels.EmptyLabels()},
},
},
{
`sum(count_over_time({app=~"foo|bar"} |~".+bar" [1m])) by (app)`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, factor(10, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app)(count_over_time({app=~"foo|bar"} |~".+bar" [1m]))`}},
},
promql.Vector{
promql.Sample{T: 60 * 1000, F: 6, Metric: labels.FromStrings("app", "bar")},
promql.Sample{T: 60 * 1000, F: 6, Metric: labels.FromStrings("app", "foo")},
},
},
{
`sum(count_over_time({app=~"foo|bar"} |~".+bar" [1m])) by (namespace,app)`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo", namespace="a"}`),
newSeries(testSize, factor(10, identity), `{app="bar", namespace="b"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (namespace,app) (count_over_time({app=~"foo|bar"} |~".+bar" [1m])) `}},
},
promql.Vector{
promql.Sample{
T: 60 * 1000,
F: 6,
Metric: labels.FromStrings("app", "bar",
"namespace", "b",
),
},
promql.Sample{
T: 60 * 1000,
F: 6,
Metric: labels.FromStrings("app", "foo",
"namespace", "a",
),
},
},
},
{
`sum(count_over_time({app=~"foo|bar"} |~".+bar" [1m] offset 30s)) by (namespace,app)`, time.Unix(90, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo", namespace="a"}`),
newSeries(testSize, factor(10, identity), `{app="bar", namespace="b"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (namespace,app) (count_over_time({app=~"foo|bar"} |~".+bar" [1m] offset 30s)) `}},
},
promql.Vector{
promql.Sample{
T: 90 * 1000, F: 6,
Metric: labels.FromStrings("app", "bar",
"namespace", "b",
),
},
promql.Sample{
T: 90 * 1000, F: 6,
Metric: labels.FromStrings("app", "foo",
"namespace", "a",
),
},
},
},
{
`label_replace(
sum(count_over_time({app=~"foo|bar"} |~".+bar" [1m])) by (namespace,app),
"new",
"$1",
"app",
"f(.*)"
)`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo", namespace="a"}`),
newSeries(testSize, factor(10, identity), `{app="bar", namespace="b"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (namespace,app) (count_over_time({app=~"foo|bar"} |~".+bar" [1m])) `}},
},
promql.Vector{
promql.Sample{
T: 60 * 1000, F: 6,
Metric: labels.FromStrings("app", "bar",
"namespace", "b",
),
},
promql.Sample{
T: 60 * 1000, F: 6,
Metric: labels.FromStrings("app", "foo",
"namespace", "a",
"new", "oo",
),
},
},
},
{
`count(count_over_time({app=~"foo|bar"} |~".+bar" [1m])) without (app)`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, factor(10, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 2, Metric: labels.EmptyLabels()},
},
},
{
`stdvar without (app) (count_over_time(({app=~"foo|bar"} |~".+bar")[1m])) `, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, factor(5, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 9, Metric: labels.EmptyLabels()},
},
},
{
`stddev(count_over_time(({app=~"foo|bar"} |~".+bar")[1m])) `, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, factor(2, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 12, Metric: labels.EmptyLabels()},
},
},
{
`rate(({app=~"foo|bar"} |~".+bar")[1m])`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 0.25, Metric: labels.FromStrings("app", "bar")},
{T: 60 * 1000, F: 0.1, Metric: labels.FromStrings("app", "foo")},
},
},
{
`topk(2,rate(({app=~"foo|bar"} |~".+bar")[1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 0.25, Metric: labels.FromStrings("app", "bar")},
{T: 60 * 1000, F: 0.1, Metric: labels.FromStrings("app", "foo")},
},
},
{
`topk(1,rate(({app=~"foo|bar"} |~".+bar")[1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 0.25, Metric: labels.FromStrings("app", "bar")},
},
},
{
`topk(1,rate(({app=~"foo|bar"} |~".+bar")[1m])) by (app)`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`),
newSeries(testSize, factor(5, identity), `{app="fuzz"}`), newSeries(testSize, identity, `{app="buzz"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 0.25, Metric: labels.FromStrings("app", "bar")},
{T: 60 * 1000, F: 1, Metric: labels.FromStrings("app", "buzz")},
{T: 60 * 1000, F: 0.1, Metric: labels.FromStrings("app", "foo")},
{T: 60 * 1000, F: 0.2, Metric: labels.FromStrings("app", "fuzz")},
},
},
{
`bottomk(2,rate(({app=~"foo|bar"} |~".+bar")[1m]))`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`),
newSeries(testSize, factor(5, identity), `{app="fuzz"}`), newSeries(testSize, identity, `{app="buzz"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 0.1, Metric: labels.FromStrings("app", "foo")},
{T: 60 * 1000, F: 0.2, Metric: labels.FromStrings("app", "fuzz")},
},
},
{
`bottomk(3,rate(({app=~"foo|bar"} |~".+bar")[1m])) without (app)`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`),
newSeries(testSize, factor(5, identity), `{app="fuzz"}`), newSeries(testSize, identity, `{app="buzz"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 0.25, Metric: labels.FromStrings("app", "bar")},
{T: 60 * 1000, F: 0.1, Metric: labels.FromStrings("app", "foo")},
{T: 60 * 1000, F: 0.2, Metric: labels.FromStrings("app", "fuzz")},
},
},
{
`bottomk(3,rate(({app=~"foo|bar"} |~".+bar")[1m])) without (app) + 1`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`),
newSeries(testSize, factor(5, identity), `{app="fuzz"}`), newSeries(testSize, identity, `{app="buzz"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 1.25, Metric: labels.FromStrings("app", "bar")},
{T: 60 * 1000, F: 1.1, Metric: labels.FromStrings("app", "foo")},
{T: 60 * 1000, F: 1.2, Metric: labels.FromStrings("app", "fuzz")},
},
},
// sort and sort_desc
{
`sort(rate(({app=~"foo|bar"} |~".+bar")[1m])) + 1`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`),
newSeries(testSize, factor(5, identity), `{app="fuzz"}`), newSeries(testSize, identity, `{app="buzz"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 1.1, Metric: labels.FromStrings("app", "foo")},
{T: 60 * 1000, F: 1.2, Metric: labels.FromStrings("app", "fuzz")},
{T: 60 * 1000, F: 1.25, Metric: labels.FromStrings("app", "bar")},
{T: 60 * 1000, F: 2, Metric: labels.FromStrings("app", "buzz")},
},
},
{
`sort_desc(rate(({app=~"foo|bar"} |~".+bar")[1m])) + 1`, time.Unix(60, 0), logproto.FORWARD, 100,
[][]logproto.Series{
{
newSeries(testSize, factor(10, identity), `{app="foo"}`), newSeries(testSize, offset(46, identity), `{app="bar"}`),
newSeries(testSize, factor(5, identity), `{app="fuzz"}`), newSeries(testSize, identity, `{app="buzz"}`),
},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app=~"foo|bar"}|~".+bar"[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 2, Metric: labels.FromStrings("app", "buzz")},
{T: 60 * 1000, F: 1.25, Metric: labels.FromStrings("app", "bar")},
{T: 60 * 1000, F: 1.2, Metric: labels.FromStrings("app", "fuzz")},
{T: 60 * 1000, F: 1.1, Metric: labels.FromStrings("app", "foo")},
},
},
{
// healthcheck
`1+1`, time.Unix(60, 0), logproto.FORWARD, 100,
nil,
nil,
promql.Scalar{T: 60 * 1000, V: 2},
},
{
// single literal
`2`,
time.Unix(60, 0), logproto.FORWARD, 100,
nil,
nil,
promql.Scalar{T: 60 * 1000, V: 2},
},
{
// vector instant
`vector(2)`,
time.Unix(60, 0), logproto.FORWARD, 100,
nil,
nil,
promql.Vector{promql.Sample{
T: 60 * 1000, F: 2,
Metric: labels.EmptyLabels(),
}},
},
{
// single comparison
`1 == 1`,
time.Unix(60, 0), logproto.FORWARD, 100,
nil,
nil,
promql.Scalar{T: 60 * 1000, V: 1},
},
{
// single comparison, reduce away bool modifier between scalars
`1 == bool 1`,
time.Unix(60, 0), logproto.FORWARD, 100,
nil,
nil,
promql.Scalar{T: 60 * 1000, V: 1},
},
{
`count_over_time({app="foo"}[1m]) > 1`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="foo"}[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 60, Metric: labels.FromStrings("app", "foo")},
},
},
{
// should return same results as `count_over_time({app="foo"}[1m]) > 1`.
// https://grafana.com/docs/loki/latest/query/#comparison-operators
// Between a vector and a scalar, these operators are
// applied to the value of every data sample in the vector
`1 < count_over_time({app="foo"}[1m])`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="foo"}[1m])`}},
},
promql.Vector{
{T: 60 * 1000, F: 60, Metric: labels.FromStrings("app", "foo")},
},
},
{
`count_over_time({app="foo"}[1m]) > count_over_time({app="bar"}[1m])`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
{},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="foo"}[1m])`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="bar"}[1m])`}},
},
promql.Vector{},
},
{
`count_over_time({app="foo"}[1m]) > bool count_over_time({app="bar"}[1m])`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
{},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="foo"}[1m])`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `count_over_time({app="bar"}[1m])`}},
},
promql.Vector{},
},
{
`sum without(app) (count_over_time({app="foo"}[1m])) > bool sum without(app) (count_over_time({app="bar"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
{},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum without (app) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum without (app) (count_over_time({app="bar"}[1m]))`}},
},
promql.Vector{},
},
{
`sum without(app) (count_over_time({app="foo"}[1m])) >= sum without(app) (count_over_time({app="bar"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
{newSeries(testSize, identity, `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum without(app) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum without(app) (count_over_time({app="bar"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 60, Metric: labels.EmptyLabels()},
},
},
{
`10 / 5 / 2`,
time.Unix(60, 0),
logproto.FORWARD,
0,
nil,
nil,
promql.Scalar{T: 60 * 1000, V: 1},
},
{
`10 / (5 / 2)`,
time.Unix(60, 0),
logproto.FORWARD,
0,
nil,
nil,
promql.Scalar{T: 60 * 1000, V: 4},
},
{
`10 / ((rate({app="foo"} |~".+bar" [1m]) /5))`, time.Unix(60, 0), logproto.BACKWARD, 10,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `rate({app="foo"}|~".+bar"[1m])`}},
},
promql.Vector{{T: 60 * 1000, F: 50, Metric: labels.FromStrings("app", "foo")}},
},
{
`sum by (app) (count_over_time({app="foo"}[1m])) + sum by (app) (count_over_time({app="bar"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
{newSeries(testSize, identity, `{app="bar"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="bar"}[1m]))`}},
},
promql.Vector{},
},
{
`sum by (app) (count_over_time({app="foo"}[1m])) + sum by (app) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo"}`)},
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 120, Metric: labels.FromStrings("app", "foo")},
},
},
{
`sum by (app,machine) (count_over_time({app="foo"}[1m])) + on () sum by (app) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`)},
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 120, Metric: labels.EmptyLabels()},
},
},
{
`sum by (app,machine) (count_over_time({app="foo"}[1m])) + on (app) sum by (app) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`)},
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 120, Metric: labels.FromStrings("app", "foo")},
},
},
{
`sum by (app,machine) (count_over_time({app="foo"}[1m])) > bool ignoring (machine) sum by (app) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`)},
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo")},
},
},
{
`sum by (app,machine) (count_over_time({app="foo"}[1m])) > bool ignoring (machine) sum by (app) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`), newSeries(testSize, identity, `{app="foo",machine="buzz"}`)},
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
},
errors.New("multiple matches for labels: many-to-one matching must be explicit (group_left/group_right)"),
},
{
`sum by (app,machine) (count_over_time({app="foo"}[1m])) > bool on () group_left sum by (app) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`), newSeries(testSize, identity, `{app="foo",machine="buzz"}`)},
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "buzz")},
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "fuzz")},
},
},
{
`sum by (app,machine) (count_over_time({app="foo"}[1m])) > bool on () group_left () sum by (app) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`), newSeries(testSize, identity, `{app="foo",machine="buzz"}`)},
{newSeries(testSize, identity, `{app="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "buzz")},
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "fuzz")},
},
},
{
`sum by (app,machine) (count_over_time({app="foo"}[1m])) > bool on (app) group_left (pool) sum by (app,pool) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`), newSeries(testSize, identity, `{app="foo",machine="buzz"}`)},
{newSeries(testSize, identity, `{app="foo",pool="foo"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,pool) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "buzz", "pool", "foo")},
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "fuzz", "pool", "foo")},
},
},
{
`sum by (app,pool) (count_over_time({app="foo"}[1m])) > bool on (app) group_right (pool) sum by (app,machine) (count_over_time({app="foo"}[1m]))`,
time.Unix(60, 0),
logproto.FORWARD,
0,
[][]logproto.Series{
{newSeries(testSize, identity, `{app="foo",pool="foo"}`)},
{newSeries(testSize, identity, `{app="foo",machine="fuzz"}`), newSeries(testSize, identity, `{app="foo",machine="buzz"}`)},
},
[]SelectSampleParams{
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,pool) (count_over_time({app="foo"}[1m]))`}},
{&logproto.SampleQueryRequest{Start: time.Unix(0, 0), End: time.Unix(60, 0), Selector: `sum by (app,machine) (count_over_time({app="foo"}[1m]))`}},
},
promql.Vector{
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "buzz", "pool", "foo")},
{T: 60 * 1000, F: 0, Metric: labels.FromStrings("app", "foo", "machine", "fuzz", "pool", "foo")},
},
},
} {
test := test
t.Run(fmt.Sprintf("%s %s", test.qs, test.direction), func(t *testing.T) {
eng := NewEngine(EngineOpts{}, newQuerierRecorder(t, test.data, test.params), NoLimits, log.NewNopLogger())
params, err := NewLiteralParams(test.qs, test.ts, test.ts, 0, 0, test.direction, test.limit, nil, nil)
require.NoError(t, err)
q := eng.Query(params)
res, err := q.Exec(user.InjectOrgID(context.Background(), "fake"))
if expectedError, ok := test.expected.(error); ok {
assert.Equal(t, expectedError.Error(), err.Error())
} else {
if err != nil {
t.Fatal(err)
}
assert.Equal(t, test.expected, res.Data)
}
})
}
}
func TestEngine_RangeQuery(t *testing.T) {
t.Parallel()
for _, test := range []struct {
qs string
start time.Time
end time.Time
step time.Duration
interval time.Duration
direction logproto.Direction
limit uint32
// an array of streams per SelectParams will be returned by the querier.
// This is to cover logql that requires multiple queries.
data interface{}
params interface{}
expected promql_parser.Value
}{
{
`{app="foo"}`, time.Unix(0, 0), time.Unix(30, 0), time.Second, 0, logproto.FORWARD, 10,
[][]logproto.Stream{
{newStream(testSize, identity, `{app="foo"}`)},
},