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loki/pkg/engine/internal/executor/expressions_test.go

1569 lines
48 KiB

package executor
import (
"testing"
"time"
"github.com/apache/arrow-go/v18/arrow"
"github.com/apache/arrow-go/v18/arrow/array"
"github.com/apache/arrow-go/v18/arrow/memory"
"github.com/stretchr/testify/require"
"github.com/grafana/loki/v3/pkg/engine/internal/planner/physical"
"github.com/grafana/loki/v3/pkg/engine/internal/semconv"
"github.com/grafana/loki/v3/pkg/engine/internal/types"
"github.com/grafana/loki/v3/pkg/engine/internal/util"
"github.com/grafana/loki/v3/pkg/util/arrowtest"
)
var (
fields = []arrow.Field{
semconv.FieldFromFQN("utf8.builtin.name", false),
semconv.FieldFromFQN("timestamp_ns.builtin.timestamp", false),
semconv.FieldFromFQN("float64.builtin.value", false),
semconv.FieldFromFQN("bool.builtin.valid", false),
}
sampledata = `Alice,1745487598764058205,0.2586284611568047,false
Bob,1745487598764058305,0.7823145698741236,true
Charlie,1745487598764058405,0.3451289756123478,false
David,1745487598764058505,0.9217834561278945,true
Eve,1745487598764058605,0.1245789632145789,false
Frank,1745487598764058705,0.5678912345678912,true
Grace,1745487598764058805,0.8912345678912345,false
Hannah,1745487598764058905,0.2345678912345678,true
Ian,1745487598764059005,0.6789123456789123,false
Julia,1745487598764059105,0.4123456789123456,true`
)
func TestEvaluateLiteralExpression(t *testing.T) {
for _, tt := range []struct {
name string
value any
want any
arrowType arrow.Type
}{
{
name: "null",
value: nil,
arrowType: arrow.NULL,
},
{
name: "bool",
value: true,
arrowType: arrow.BOOL,
},
{
name: "str",
value: "loki",
arrowType: arrow.STRING,
},
{
name: "int",
value: int64(123456789),
arrowType: arrow.INT64,
},
{
name: "float",
value: 123.456789,
arrowType: arrow.FLOAT64,
},
{
name: "timestamp",
value: types.Timestamp(3600000000),
want: arrow.Timestamp(3600000000),
arrowType: arrow.TIMESTAMP,
},
{
name: "duration",
value: types.Duration(3600000000),
want: int64(3600000000),
arrowType: arrow.INT64,
},
{
name: "bytes",
value: types.Bytes(1024),
want: int64(1024),
arrowType: arrow.INT64,
},
{
name: "string list",
value: []string{"a", "b", "c"},
arrowType: arrow.LIST,
},
} {
t.Run(tt.name, func(t *testing.T) {
literal := physical.NewLiteral(tt.value)
e := newExpressionEvaluator()
n := len(words)
rec := batch(n, time.Now())
colVec, err := e.eval(literal, rec)
require.NoError(t, err)
require.Equalf(t, tt.arrowType, colVec.DataType().ID(), "expected: %v got: %v", tt.arrowType.String(), colVec.DataType().ID().String())
for i := range n {
var val any
switch arr := colVec.(type) {
case *array.Null:
val = arr.Value(i)
case *array.Boolean:
val = arr.Value(i)
case *array.String:
val = arr.Value(i)
case *array.Int64:
val = arr.Value(i)
case *array.Float64:
val = arr.Value(i)
case *array.Timestamp:
val = arr.Value(i)
case *array.List:
val = util.ArrayListValue(arr, i)
}
if tt.want != nil {
require.Equal(t, tt.want, val)
} else {
require.Equal(t, tt.value, val)
}
}
})
}
}
func TestEvaluateColumnExpression(t *testing.T) {
e := newExpressionEvaluator()
t.Run("unknown column", func(t *testing.T) {
colExpr := &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "does_not_exist",
Type: types.ColumnTypeBuiltin,
},
}
n := len(words)
rec := batch(n, time.Now())
colVec, err := e.eval(colExpr, rec)
require.NoError(t, err)
require.Equal(t, arrow.STRING, colVec.DataType().ID())
})
t.Run("string(message)", func(t *testing.T) {
colExpr := &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "message",
Type: types.ColumnTypeBuiltin,
},
}
n := len(words)
rec := batch(n, time.Now())
colVec, err := e.eval(colExpr, rec)
require.NoError(t, err)
require.Equal(t, arrow.STRING, colVec.DataType().ID())
for i := range n {
val := colVec.(*array.String).Value(i)
require.Equal(t, words[i%len(words)], val)
}
})
}
func TestEvaluateBinaryExpression(t *testing.T) {
rec, err := CSVToArrow(fields, sampledata)
require.NoError(t, err)
e := newExpressionEvaluator()
t.Run("error if types do not match", func(t *testing.T) {
expr := &physical.BinaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{Column: "name", Type: types.ColumnTypeBuiltin},
},
Right: &physical.ColumnExpr{
Ref: types.ColumnRef{Column: "timestamp", Type: types.ColumnTypeBuiltin},
},
Op: types.BinaryOpEq,
}
_, err := e.eval(expr, rec)
require.ErrorContains(t, err, "failed to lookup binary function for signature EQ(utf8,timestamp[ns, tz=UTC]): types do not match")
})
t.Run("error if function for signature is not registered", func(t *testing.T) {
expr := &physical.BinaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{Column: "name", Type: types.ColumnTypeBuiltin},
},
Right: &physical.ColumnExpr{
Ref: types.ColumnRef{Column: "name", Type: types.ColumnTypeBuiltin},
},
Op: types.BinaryOpXor,
}
_, err := e.eval(expr, rec)
require.ErrorContains(t, err, "failed to lookup binary function for signature XOR(utf8,utf8): not implemented")
})
t.Run("EQ(string,string)", func(t *testing.T) {
expr := &physical.BinaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{Column: "name", Type: types.ColumnTypeBuiltin},
},
Right: physical.NewLiteral("Charlie"),
Op: types.BinaryOpEq,
}
res, err := e.eval(expr, rec)
require.NoError(t, err)
result := collectBooleanArray(res.(*array.Boolean))
require.Equal(t, []bool{false, false, true, false, false, false, false, false, false, false}, result)
})
t.Run("GT(float,float)", func(t *testing.T) {
expr := &physical.BinaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{Column: "value", Type: types.ColumnTypeBuiltin},
},
Right: physical.NewLiteral(0.5),
Op: types.BinaryOpGt,
}
res, err := e.eval(expr, rec)
require.NoError(t, err)
result := collectBooleanArray(res.(*array.Boolean))
require.Equal(t, []bool{false, true, false, true, false, true, true, false, true, false}, result)
})
}
func collectBooleanArray(arr *array.Boolean) []bool {
res := make([]bool, 0, arr.Len())
for i := range arr.Len() {
res = append(res, arr.Value(i))
}
return res
}
var words = []string{"one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"}
func batch(n int, now time.Time) arrow.RecordBatch {
// Define the schema
schema := arrow.NewSchema(
[]arrow.Field{
semconv.FieldFromIdent(semconv.ColumnIdentMessage, false),
semconv.FieldFromIdent(semconv.ColumnIdentTimestamp, false),
},
nil, // No metadata
)
// Create builders for each column
logBuilder := array.NewStringBuilder(memory.DefaultAllocator)
tsBuilder := array.NewTimestampBuilder(memory.DefaultAllocator, &arrow.TimestampType{Unit: arrow.Nanosecond, TimeZone: "UTC"})
// Append data to the builders
logs := make([]string, n)
ts := make([]arrow.Timestamp, n)
for i := range n {
logs[i] = words[i%len(words)]
ts[i] = arrow.Timestamp(now.Add(time.Duration(i) * time.Second).UnixNano())
}
tsBuilder.AppendValues(ts, nil)
logBuilder.AppendValues(logs, nil)
// Build the arrays
logArray := logBuilder.NewArray()
tsArray := tsBuilder.NewArray()
// Create the record
columns := []arrow.Array{logArray, tsArray}
record := array.NewRecordBatch(schema, columns, int64(n))
return record
}
func TestEvaluateAmbiguousColumnExpression(t *testing.T) {
// Test precedence between generated, metadata, and label columns
fields := []arrow.Field{
semconv.FieldFromFQN("utf8.label.test", true),
semconv.FieldFromFQN("utf8.metadata.test", true),
semconv.FieldFromFQN("utf8.generated.test", true),
}
// CSV data where:
// Row 0: All columns have values - should pick generated (highest precedence)
// Row 1: Generated is null, others have values - should pick metadata
// Row 2: Generated and metadata are null - should pick label
// Row 3: All are null - should return null
data := `label_0,metadata_0,generated_0
label_1,metadata_1,null
label_2,null,null
null,null,null`
record, err := CSVToArrow(fields, data)
require.NoError(t, err)
e := newExpressionEvaluator()
t.Run("ambiguous column should use per-row precedence order", func(t *testing.T) {
colExpr := &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "test",
Type: types.ColumnTypeAmbiguous,
},
}
colVec, err := e.eval(colExpr, record)
require.NoError(t, err)
require.Equal(t, arrow.STRING, colVec.DataType().ID())
// Test per-row precedence resolution
col := colVec.(*array.String)
require.Equal(t, "generated_0", col.Value(0)) // Generated has highest precedence
require.Equal(t, "metadata_1", col.Value(1)) // Generated is null, metadata has next precedence
require.Equal(t, "label_2", col.Value(2)) // Generated and metadata are null, label has next precedence
require.True(t, col.IsNull(3)) // All are null
})
t.Run("look-up matching single column should return Array", func(t *testing.T) {
// Create a record with only one column type
fields := []arrow.Field{
semconv.FieldFromFQN("utf8.label.single", false),
}
data := `label_0
label_1
label_2
`
singleRecord, err := CSVToArrow(fields, data)
require.NoError(t, err)
colExpr := &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "single",
Type: types.ColumnTypeAmbiguous,
},
}
colVec, err := e.eval(colExpr, singleRecord)
require.NoError(t, err)
require.Equal(t, arrow.STRING, colVec.DataType().ID())
// Test single column behavior
col := colVec.(*array.String)
require.Equal(t, "label_0", col.Value(0))
require.Equal(t, "label_1", col.Value(1))
require.Equal(t, "label_2", col.Value(2))
})
t.Run("ambiguous column with no matching columns should return default scalar", func(t *testing.T) {
colExpr := &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "nonexistent",
Type: types.ColumnTypeAmbiguous,
},
}
colVec, err := e.eval(colExpr, record)
require.NoError(t, err)
require.Equal(t, arrow.STRING, colVec.DataType().ID())
})
}
func TestEvaluateUnaryCastExpression(t *testing.T) {
colMsg := semconv.ColumnIdentMessage
colStatusCode := semconv.NewIdentifier("status_code", types.ColumnTypeMetadata, types.Loki.String)
colTimeout := semconv.NewIdentifier("timeout", types.ColumnTypeParsed, types.Loki.String)
colMixedValues := semconv.NewIdentifier("mixed_values", types.ColumnTypeMetadata, types.Loki.String)
t.Run("unknown column", func(t *testing.T) {
e := newExpressionEvaluator()
expr := &physical.UnaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "does_not_exist",
Type: types.ColumnTypeAmbiguous,
},
},
Op: types.UnaryOpCastFloat,
}
n := len(words)
rec := batch(n, time.Now())
colVec, err := e.eval(expr, rec)
require.NoError(t, err)
id := colVec.DataType().ID()
require.Equal(t, arrow.STRUCT, id)
arr, ok := colVec.(*array.Struct)
require.True(t, ok)
require.Equal(t, 3, arr.NumField()) // value, error, error_details
value, ok := arr.Field(0).(*array.Float64)
require.True(t, ok)
errorField, ok := arr.Field(1).(*array.String)
require.True(t, ok)
errorDetailsField, ok := arr.Field(2).(*array.String)
require.True(t, ok)
require.Equal(t, n, value.Len())
for i := range n {
require.Equal(t, 0.0, value.Value(i), "expected value to be 0.0 for row %d", i)
require.Equal(t, types.SampleExtractionErrorType, errorField.Value(i))
require.Contains(t, `strconv.ParseFloat: parsing "": invalid syntax`, errorDetailsField.Value(i))
}
})
t.Run("cast column generates a value", func(t *testing.T) {
expr := &physical.UnaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "status_code",
Type: types.ColumnTypeAmbiguous,
},
},
Op: types.UnaryOpCastBytes,
}
e := newExpressionEvaluator()
schema := arrow.NewSchema(
[]arrow.Field{
semconv.FieldFromIdent(colMsg, false),
semconv.FieldFromIdent(colStatusCode, true),
semconv.FieldFromIdent(colTimeout, true),
},
nil,
)
rows := arrowtest.Rows{
{"utf8.builtin.message": "timeout set", "utf8.metadata.status_code": "200", "utf8.parsed.timeout": "2m"},
{"utf8.builtin.message": "short timeout", "utf8.metadata.status_code": "204", "utf8.parsed.timeout": "10s"},
{"utf8.builtin.message": "long timeout", "utf8.metadata.status_code": "404", "utf8.parsed.timeout": "1h"},
}
record := rows.Record(memory.DefaultAllocator, schema)
colVec, err := e.eval(expr, record)
require.NoError(t, err)
id := colVec.DataType().ID()
require.Equal(t, arrow.STRUCT, id)
arr, ok := colVec.(*array.Struct)
require.True(t, ok)
require.Equal(t, 1, arr.NumField())
value, ok := arr.Field(0).(*array.Float64)
require.True(t, ok)
require.Equal(t, 3, value.Len())
require.Equal(t, 200.0, value.Value(0))
require.Equal(t, 204.0, value.Value(1))
require.Equal(t, 404.0, value.Value(2))
})
t.Run("cast column generates a value from a parsed column", func(t *testing.T) {
expr := &physical.UnaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "timeout",
Type: types.ColumnTypeAmbiguous,
},
},
Op: types.UnaryOpCastDuration,
}
e := newExpressionEvaluator()
schema := arrow.NewSchema(
[]arrow.Field{
semconv.FieldFromIdent(colMsg, false),
semconv.FieldFromIdent(colStatusCode, true),
semconv.FieldFromIdent(colTimeout, true),
},
nil,
)
rows := arrowtest.Rows{
{"utf8.builtin.message": "timeout set", "utf8.metadata.status_code": "200", "utf8.parsed.timeout": "2m"},
{"utf8.builtin.message": "short timeout", "utf8.metadata.status_code": "204", "utf8.parsed.timeout": "10s"},
{"utf8.builtin.message": "long timeout", "utf8.metadata.status_code": "404", "utf8.parsed.timeout": "1h"},
}
record := rows.Record(memory.DefaultAllocator, schema)
colVec, err := e.eval(expr, record)
require.NoError(t, err)
id := colVec.DataType().ID()
require.Equal(t, arrow.STRUCT, id)
arr, ok := colVec.(*array.Struct)
require.True(t, ok)
require.Equal(t, 1, arr.NumField())
value, ok := arr.Field(0).(*array.Float64)
require.True(t, ok)
require.Equal(t, 3, value.Len())
require.Equal(t, 120.0, value.Value(0))
require.Equal(t, 3600.0, value.Value(2))
})
t.Run("cast operation tracks errors", func(t *testing.T) {
colExpr := &physical.UnaryExpr{
Left: &physical.ColumnExpr{
Ref: types.ColumnRef{
Column: "mixed_values",
Type: types.ColumnTypeAmbiguous,
},
},
Op: types.UnaryOpCastFloat,
}
e := newExpressionEvaluator()
schema := arrow.NewSchema(
[]arrow.Field{
semconv.FieldFromIdent(colMsg, false),
semconv.FieldFromIdent(colMixedValues, true),
},
nil,
)
rows := arrowtest.Rows{
{"utf8.builtin.message": "valid numeric", "utf8.metadata.mixed_values": "42.5"},
{"utf8.builtin.message": "invalid numeric", "utf8.metadata.mixed_values": "not_a_number"},
{"utf8.builtin.message": "valid bytes", "utf8.metadata.mixed_values": "1KB"},
{"utf8.builtin.message": "invalid bytes", "utf8.metadata.mixed_values": "invalid_bytes"},
{"utf8.builtin.message": "empty string", "utf8.metadata.mixed_values": ""},
}
record := rows.Record(memory.DefaultAllocator, schema)
colVec, err := e.eval(colExpr, record)
require.NoError(t, err)
id := colVec.DataType().ID()
require.Equal(t, arrow.STRUCT, id)
arr, ok := colVec.(*array.Struct)
require.True(t, ok)
require.Equal(t, 3, arr.NumField()) // value, error, errorDetails
// Convert struct to rows for comparison
actual, err := structToRows(arr)
require.NoError(t, err)
// Define expected output
expected := arrowtest.Rows{
{
semconv.ColumnIdentValue.FQN(): 42.5,
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
{
semconv.ColumnIdentValue.FQN(): 0.0,
semconv.ColumnIdentError.FQN(): types.SampleExtractionErrorType,
semconv.ColumnIdentErrorDetails.FQN(): `strconv.ParseFloat: parsing "not_a_number": invalid syntax`,
},
{
semconv.ColumnIdentValue.FQN(): 0.0,
semconv.ColumnIdentError.FQN(): types.SampleExtractionErrorType,
semconv.ColumnIdentErrorDetails.FQN(): `strconv.ParseFloat: parsing "1KB": invalid syntax`,
},
{
semconv.ColumnIdentValue.FQN(): 0.0,
semconv.ColumnIdentError.FQN(): types.SampleExtractionErrorType,
semconv.ColumnIdentErrorDetails.FQN(): `strconv.ParseFloat: parsing "invalid_bytes": invalid syntax`,
},
{
semconv.ColumnIdentValue.FQN(): 0.0,
semconv.ColumnIdentError.FQN(): types.SampleExtractionErrorType,
semconv.ColumnIdentErrorDetails.FQN(): `strconv.ParseFloat: parsing "": invalid syntax`,
},
}
require.Equal(t, expected, actual)
})
}
func structToRows(structArr *array.Struct) (arrowtest.Rows, error) {
// Get the struct type to extract schema information
structType := structArr.DataType().(*arrow.StructType)
// Create schema from struct fields
schema := arrow.NewSchema(structType.Fields(), nil)
// Extract field arrays from the struct
columns := make([]arrow.Array, structArr.NumField())
for i := 0; i < structArr.NumField(); i++ {
columns[i] = structArr.Field(i)
}
// Create and return the record
record := array.NewRecordBatch(schema, columns, int64(structArr.Len()))
defer record.Release()
return arrowtest.RecordRows(record)
}
func TestLogfmtParser(t *testing.T) {
colMsg := "utf8.builtin.message"
for _, tt := range []struct {
name string
schema *arrow.Schema
input arrowtest.Rows
requestedKeys []string
strict bool
keepEmpty bool
expectedFields int
expectedOutput arrowtest.Rows
}{
{
name: "parse stage transforms records, adding columns parsed from message",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=error status=500"},
{colMsg: "level=info status=200"},
{colMsg: "level=debug status=201"},
},
requestedKeys: []string{"level", "status"},
strict: false,
keepEmpty: false,
expectedFields: 2, // 2 columns: level, status
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "error",
"utf8.parsed.status": "500",
},
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "200",
},
{
"utf8.parsed.level": "debug",
"utf8.parsed.status": "201",
},
},
},
{
name: "handle missing keys with NULL",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=error"},
{colMsg: "status=200"},
{colMsg: "level=info"},
},
requestedKeys: []string{"level"},
strict: false,
keepEmpty: false,
expectedFields: 1, // 1 column: level
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "error",
},
{
"utf8.parsed.level": nil,
},
{
"utf8.parsed.level": "info",
},
},
},
{
name: "handle errors with error columns",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status=200"}, // No errors
{colMsg: "status==value level=error"}, // Double equals error on requested key
{colMsg: "level=\"unclosed status=500"}, // Unclosed quote error
},
requestedKeys: []string{"level", "status"},
strict: false,
keepEmpty: false,
expectedFields: 4, // 4 columns: level, status, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "200",
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": nil,
semconv.ColumnIdentError.FQN(): types.LogfmtParserErrorType,
semconv.ColumnIdentErrorDetails.FQN(): "logfmt syntax error at pos 8 : unexpected '='",
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": nil,
semconv.ColumnIdentError.FQN(): types.LogfmtParserErrorType,
semconv.ColumnIdentErrorDetails.FQN(): "logfmt syntax error at pos 27 : unterminated quoted value",
},
},
},
{
name: "extract all keys when none requested",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status=200 method=GET"},
{colMsg: "level=warn code=304"},
{colMsg: "level=error status=500 method=POST duration=123ms"},
},
requestedKeys: nil, // nil means extract all keys
strict: false,
keepEmpty: false,
expectedFields: 5, // 5 columns: code, duration, level, method, status
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.code": nil,
"utf8.parsed.duration": nil,
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": "200",
},
{
"utf8.parsed.code": "304",
"utf8.parsed.duration": nil,
"utf8.parsed.level": "warn",
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
},
{
"utf8.parsed.code": nil,
"utf8.parsed.duration": "123ms",
"utf8.parsed.level": "error",
"utf8.parsed.method": "POST",
"utf8.parsed.status": "500",
},
},
},
{
name: "extract all keys with errors when none requested",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status=200 method=GET"}, // Valid line
{colMsg: "level==error code=500"}, // Double equals error
{colMsg: "msg=\"unclosed duration=100ms code=400"}, // Unclosed quote error
{colMsg: "level=debug method=POST"}, // Valid line
},
requestedKeys: nil, // nil means extract all keys
strict: false,
keepEmpty: false,
expectedFields: 5, // 5 columns: level, method, status, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": "200",
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
semconv.ColumnIdentError.FQN(): types.LogfmtParserErrorType,
semconv.ColumnIdentErrorDetails.FQN(): "logfmt syntax error at pos 7 : unexpected '='",
},
{
"utf8.parsed.level": nil,
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
semconv.ColumnIdentError.FQN(): types.LogfmtParserErrorType,
semconv.ColumnIdentErrorDetails.FQN(): "logfmt syntax error at pos 38 : unterminated quoted value",
},
{
"utf8.parsed.level": "debug",
"utf8.parsed.method": "POST",
"utf8.parsed.status": nil,
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
},
},
{
name: "strict mode stops on first error",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status=200 method=GET"}, // Valid line
{colMsg: "level==error code=500"}, // Double equals error
{colMsg: "level=debug method=POST"}, // Valid line
},
requestedKeys: nil,
strict: true,
keepEmpty: false,
expectedFields: 5, // level, method, status, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": "200",
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
"utf8.generated.__error__": "LogfmtParserErr",
"utf8.generated.__error_details__": "logfmt syntax error at pos 7 : unexpected '='",
},
{
"utf8.parsed.level": "debug",
"utf8.parsed.method": "POST",
"utf8.parsed.status": nil,
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
},
},
{
name: "non-strict mode continues parsing on error",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status=200 method=GET"}, // Valid line
{colMsg: "code=500 level= error=true"}, // All fields parsed successfully (no double equals)
{colMsg: "level=debug method=POST"}, // Valid line
},
requestedKeys: nil,
strict: false,
keepEmpty: false,
expectedFields: 5, // code, error, level, method, status (no errors, so no error columns)
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.code": nil,
"utf8.parsed.error": nil,
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": "200",
},
{
"utf8.parsed.code": "500",
"utf8.parsed.error": "true",
"utf8.parsed.level": nil,
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
},
{
"utf8.parsed.code": nil,
"utf8.parsed.error": nil,
"utf8.parsed.level": "debug",
"utf8.parsed.method": "POST",
"utf8.parsed.status": nil,
},
},
},
{
name: "keepEmpty mode retains empty values",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status= method=GET"},
{colMsg: "level= status=200"},
},
requestedKeys: nil,
strict: false,
keepEmpty: true,
expectedFields: 3, // level, method, status
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": "",
},
{
"utf8.parsed.level": "",
"utf8.parsed.method": nil,
"utf8.parsed.status": "200",
},
},
},
{
name: "without keepEmpty mode skips empty values",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status= method=GET"},
{colMsg: "level= status=200"},
},
requestedKeys: nil,
strict: false,
keepEmpty: false,
expectedFields: 3, // level, method, status
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.method": nil,
"utf8.parsed.status": "200",
},
},
},
{
name: "strict and keepEmpty both enabled",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level= status=200"},
{colMsg: "level==error method=POST"},
},
requestedKeys: nil,
strict: true,
keepEmpty: true,
expectedFields: 4, // level, status, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "",
"utf8.parsed.status": "200",
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": nil,
"utf8.generated.__error__": "LogfmtParserErr",
"utf8.generated.__error_details__": "logfmt syntax error at pos 7 : unexpected '='",
},
},
},
{
name: "strict mode with requested keys stops on error",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status=200 method=GET"},
{colMsg: "level==error status=500"}, // Error in requested key
{colMsg: "level=debug status=201"},
},
requestedKeys: []string{"level", "status"},
strict: true,
keepEmpty: false,
expectedFields: 4, // level, status, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "200",
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": nil,
"utf8.generated.__error__": "LogfmtParserErr",
"utf8.generated.__error_details__": "logfmt syntax error at pos 7 : unexpected '='",
},
{
"utf8.parsed.level": "debug",
"utf8.parsed.status": "201",
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
},
},
{
name: "keepEmpty with requested keys retains empty values",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status= method=GET"},
{colMsg: "level= status=200 method=POST"},
{colMsg: "level=debug status=404"},
},
requestedKeys: []string{"level", "status"},
strict: false,
keepEmpty: true,
expectedFields: 2, // level, status (no errors)
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "",
},
{
"utf8.parsed.level": "",
"utf8.parsed.status": "200",
},
{
"utf8.parsed.level": "debug",
"utf8.parsed.status": "404",
},
},
},
{
name: "without keepEmpty and requested keys skips empty values",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status= method=GET"},
{colMsg: "level= status=200 method=POST"},
{colMsg: "level=debug status=404"},
},
requestedKeys: []string{"level", "status"},
strict: false,
keepEmpty: false,
expectedFields: 2, // level, status (no errors)
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.status": nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": "200",
},
{
"utf8.parsed.level": "debug",
"utf8.parsed.status": "404",
},
},
},
{
name: "strict and keepEmpty with requested keys",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level= status=200 method=GET"},
{colMsg: "level=info status= method=POST"},
{colMsg: "level==error status=500"},
},
requestedKeys: []string{"level", "status"},
strict: true,
keepEmpty: true,
expectedFields: 4, // level, status, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "",
"utf8.parsed.status": "200",
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "",
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": nil,
"utf8.generated.__error__": "LogfmtParserErr",
"utf8.generated.__error_details__": "logfmt syntax error at pos 7 : unexpected '='",
},
},
},
{
name: "strict mode does not ignore errors in non-requested keys",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status=200 bad==value"}, // Error in non-requested key still causes error
{colMsg: "level=warn status=404"},
},
strict: true,
keepEmpty: false,
requestedKeys: []string{"level", "status"},
expectedFields: 4, // level, status, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": nil,
"utf8.parsed.status": nil,
"utf8.generated.__error__": "LogfmtParserErr",
"utf8.generated.__error_details__": "logfmt syntax error at pos 27 : unexpected '='",
},
{
"utf8.parsed.level": "warn",
"utf8.parsed.status": "404",
"utf8.generated.__error__": nil,
"utf8.generated.__error_details__": nil,
},
},
},
{
name: "keepEmpty only affects present keys with empty values",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: "level=info status="},
{colMsg: "level= method=GET"},
{colMsg: "status=200"},
},
strict: false,
keepEmpty: true,
requestedKeys: []string{"level", "status", "method"},
expectedFields: 3, // level, status, method
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "",
"utf8.parsed.method": nil,
},
{
"utf8.parsed.level": "",
"utf8.parsed.status": nil,
"utf8.parsed.method": "GET",
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": "200",
"utf8.parsed.method": nil,
},
},
},
} {
t.Run(tt.name, func(t *testing.T) {
expr := &physical.VariadicExpr{
Op: types.VariadicOpParseLogfmt,
Expressions: []physical.Expression{
&physical.ColumnExpr{
Ref: semconv.ColumnIdentMessage.ColumnRef(),
},
physical.NewLiteral(tt.requestedKeys),
physical.NewLiteral(tt.strict),
physical.NewLiteral(tt.keepEmpty),
},
}
e := newExpressionEvaluator()
record := tt.input.Record(memory.DefaultAllocator, tt.schema)
col, err := e.eval(expr, record)
require.NoError(t, err)
id := col.DataType().ID()
require.Equal(t, arrow.STRUCT, id)
arr, ok := col.(*array.Struct)
require.True(t, ok)
defer arr.Release()
require.Equal(t, tt.expectedFields, arr.NumField())
// Convert record to rows for comparison
actual, err := structToRows(arr)
require.NoError(t, err)
require.Equal(t, tt.expectedOutput, actual)
})
}
}
func TestEvaluateParseExpression_JSON(t *testing.T) {
var (
colTS = "timestamp_ns.builtin.timestamp"
colMsg = "utf8.builtin.message"
)
for _, tt := range []struct {
name string
schema *arrow.Schema
input arrowtest.Rows
requestedKeys []string
expectedFields int
expectedOutput arrowtest.Rows
}{
{
name: "parse stage transforms records, adding columns parsed from message",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"level": "error", "status": "500"}`},
{colMsg: `{"level": "info", "status": "200"}`},
{colMsg: `{"level": "debug", "status": "201"}`},
},
requestedKeys: []string{"level", "status"},
expectedFields: 2, // 2 columns: level, status
expectedOutput: arrowtest.Rows{
{"utf8.parsed.level": "error", "utf8.parsed.status": "500"},
{"utf8.parsed.level": "info", "utf8.parsed.status": "200"},
{"utf8.parsed.level": "debug", "utf8.parsed.status": "201"},
},
},
{
name: "parse stage preserves existing columns",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("timestamp_ns.builtin.timestamp", true),
semconv.FieldFromFQN("utf8.builtin.message", true),
semconv.FieldFromFQN("utf8.label.app", true),
}, nil),
input: arrowtest.Rows{
{colTS: time.Unix(1, 0).UTC(), colMsg: `{"level": "error", "status": "500"}`, "utf8.label.app": "frontend"},
{colTS: time.Unix(2, 0).UTC(), colMsg: `{"level": "info", "status": "200"}`, "utf8.label.app": "backend"},
},
requestedKeys: []string{"level", "status"},
expectedFields: 2, // level, status
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "error",
"utf8.parsed.status": "500",
},
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "200",
},
},
},
{
name: "handle missing keys with NULL",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"level": "error"}`},
{colMsg: `{"status": "200"}`},
{colMsg: `{"level": "info"}`},
},
requestedKeys: []string{"level"},
expectedFields: 1, // 1 column: level
expectedOutput: arrowtest.Rows{
{"utf8.parsed.level": "error"},
{"utf8.parsed.level": nil},
{"utf8.parsed.level": "info"},
},
},
{
name: "handle errors with error columns",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"level": "info", "status": "200"}`}, // No errors
{colMsg: `{"level": "error", "status":`}, // Missing closing brace and value
{colMsg: `{"level": "info", "status": 200}`}, // Number should be converted to string
},
requestedKeys: []string{"level", "status"},
expectedFields: 4, // 4 columns: level, status, __error__, __error_details__ (due to malformed JSON)
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "200",
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.status": nil,
semconv.ColumnIdentError.FQN(): "JSONParserErr",
semconv.ColumnIdentErrorDetails.FQN(): "Malformed JSON error",
},
{
"utf8.parsed.level": "info",
"utf8.parsed.status": "200",
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
},
},
{
name: "extract all keys when none requested",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"level": "info", "status": "200", "method": "GET"}`},
{colMsg: `{"level": "warn", "code": "304"}`},
{colMsg: `{"level": "error", "status": "500", "method": "POST", "duration": "123ms"}`},
},
requestedKeys: nil, // nil means extract all keys
expectedFields: 5, // 5 columns: message, code, duration, level, method, status
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.code": nil,
"utf8.parsed.duration": nil,
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": "200",
},
{
"utf8.parsed.code": "304",
"utf8.parsed.duration": nil,
"utf8.parsed.level": "warn",
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
},
{
"utf8.parsed.code": nil,
"utf8.parsed.duration": "123ms",
"utf8.parsed.level": "error",
"utf8.parsed.method": "POST",
"utf8.parsed.status": "500",
},
},
},
{
name: "extract all keys with errors when none requested",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"level": "info", "status": "200", "method": "GET"}`}, // Valid line
{colMsg: `{"level": "error", "code": 500}`}, // Also valid, adds code column
{colMsg: `{"msg": "unclosed}`}, // Unclosed quote
{colMsg: `{"level": "debug", "method": "POST"}`}, // Valid line
},
requestedKeys: nil, // nil means extract all keys
expectedFields: 6, // 6 columns: level, method, status, code, __error__, __error_details__
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "info",
"utf8.parsed.method": "GET",
"utf8.parsed.status": "200",
"utf8.parsed.code": nil,
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
{
"utf8.parsed.level": "error",
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
"utf8.parsed.code": "500",
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
{
"utf8.parsed.level": nil,
"utf8.parsed.method": nil,
"utf8.parsed.status": nil,
"utf8.parsed.code": nil,
semconv.ColumnIdentError.FQN(): "JSONParserErr",
semconv.ColumnIdentErrorDetails.FQN(): "Value is string, but can't find closing '\"' symbol",
},
{
"utf8.parsed.level": "debug",
"utf8.parsed.method": "POST",
"utf8.parsed.status": nil,
"utf8.parsed.code": nil,
semconv.ColumnIdentError.FQN(): nil,
semconv.ColumnIdentErrorDetails.FQN(): nil,
},
},
},
{
name: "handle nested JSON objects with underscore flattening",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"user": {"name": "john", "details": {"age": "30", "city": "NYC"}}, "status": "active"}`},
{colMsg: `{"app": {"version": "1.0", "config": {"debug": "true"}}, "level": "info"}`},
{colMsg: `{"nested": {"deep": {"very": {"deep": "value"}}}}`},
},
requestedKeys: nil, // Extract all keys including nested ones
expectedFields: 8, // app_config_debug, app_version, level, nested_deep_very_deep, status, user_details_age, user_details_city, user_name
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.app_config_debug": nil,
"utf8.parsed.app_version": nil,
"utf8.parsed.level": nil,
"utf8.parsed.nested_deep_very_deep": nil,
"utf8.parsed.status": "active",
"utf8.parsed.user_details_age": "30",
"utf8.parsed.user_details_city": "NYC",
"utf8.parsed.user_name": "john",
},
{
"utf8.parsed.app_config_debug": "true",
"utf8.parsed.app_version": "1.0",
"utf8.parsed.level": "info",
"utf8.parsed.nested_deep_very_deep": nil,
"utf8.parsed.status": nil,
"utf8.parsed.user_details_age": nil,
"utf8.parsed.user_details_city": nil,
"utf8.parsed.user_name": nil,
},
{
"utf8.parsed.app_config_debug": nil,
"utf8.parsed.app_version": nil,
"utf8.parsed.level": nil,
"utf8.parsed.nested_deep_very_deep": "value",
"utf8.parsed.status": nil,
"utf8.parsed.user_details_age": nil,
"utf8.parsed.user_details_city": nil,
"utf8.parsed.user_name": nil,
},
},
},
{
name: "handle nested JSON with specific requested keys",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"user": {"name": "alice", "profile": {"email": "alice@example.com"}}, "level": "debug"}`},
{colMsg: `{"user": {"name": "bob"}, "level": "info"}`},
{colMsg: `{"level": "error", "error": {"code": "500", "message": "internal"}}`},
},
requestedKeys: []string{"user_name", "user_profile_email", "level"},
expectedFields: 3, // level, user_name, user_profile_email
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "debug",
"utf8.parsed.user_name": "alice",
"utf8.parsed.user_profile_email": "alice@example.com",
},
{
"utf8.parsed.level": "info",
"utf8.parsed.user_name": "bob",
"utf8.parsed.user_profile_email": nil,
},
{
"utf8.parsed.level": "error",
"utf8.parsed.user_name": nil,
"utf8.parsed.user_profile_email": nil,
},
},
},
{
name: "accept JSON numbers as strings (v1 compatibility)",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"status": 200, "port": 8080, "timeout": 30.5, "retries": 0}`},
{colMsg: `{"level": "info", "pid": 12345, "memory": 256.8}`},
{colMsg: `{"score": -1, "version": 2.1, "enabled": true}`},
},
requestedKeys: []string{"status", "port", "timeout", "pid", "memory", "score", "version"},
expectedFields: 7, // memory, pid, port, score, status, timeout, version
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.memory": nil,
"utf8.parsed.pid": nil,
"utf8.parsed.port": "8080",
"utf8.parsed.score": nil,
"utf8.parsed.status": "200",
"utf8.parsed.timeout": "30.5",
"utf8.parsed.version": nil,
},
{
"utf8.parsed.memory": "256.8",
"utf8.parsed.pid": "12345",
"utf8.parsed.port": nil,
"utf8.parsed.score": nil,
"utf8.parsed.status": nil,
"utf8.parsed.timeout": nil,
"utf8.parsed.version": nil,
},
{
"utf8.parsed.memory": nil,
"utf8.parsed.pid": nil,
"utf8.parsed.port": nil,
"utf8.parsed.score": "-1",
"utf8.parsed.status": nil,
"utf8.parsed.timeout": nil,
"utf8.parsed.version": "2.1",
},
},
},
{
name: "mixed nested objects and numbers",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"request": {"url": "/api/users", "method": "GET"}, "response": {"status": 200, "time": 45.2}}`},
{colMsg: `{"user": {"id": 123, "profile": {"age": 25}}, "active": true}`},
},
requestedKeys: nil, // Extract all keys
expectedFields: 7, // active, request_method, request_url, response_status, response_time, user_id, user_profile_age
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.active": nil,
"utf8.parsed.request_method": "GET",
"utf8.parsed.request_url": "/api/users",
"utf8.parsed.response_status": "200",
"utf8.parsed.response_time": "45.2",
"utf8.parsed.user_id": nil,
"utf8.parsed.user_profile_age": nil,
},
{
"utf8.parsed.active": "true",
"utf8.parsed.request_method": nil,
"utf8.parsed.request_url": nil,
"utf8.parsed.response_status": nil,
"utf8.parsed.response_time": nil,
"utf8.parsed.user_id": "123",
"utf8.parsed.user_profile_age": "25",
},
},
},
{
name: "keys with empty values as empty strings",
schema: arrow.NewSchema([]arrow.Field{
semconv.FieldFromFQN("utf8.builtin.message", true),
}, nil),
input: arrowtest.Rows{
{colMsg: `{"level": "error", "namespace": ""}`},
},
requestedKeys: nil,
expectedFields: 2, // 2 columns: level, namespace
expectedOutput: arrowtest.Rows{
{
"utf8.parsed.level": "error",
"utf8.parsed.namespace": "",
},
},
},
} {
t.Run(tt.name, func(t *testing.T) {
alloc := memory.DefaultAllocator
expr := &physical.VariadicExpr{
Op: types.VariadicOpParseJSON,
Expressions: []physical.Expression{
&physical.ColumnExpr{
Ref: semconv.ColumnIdentMessage.ColumnRef(),
},
physical.NewLiteral(tt.requestedKeys),
physical.NewLiteral(false),
physical.NewLiteral(false),
},
}
e := newExpressionEvaluator()
record := tt.input.Record(alloc, tt.schema)
col, err := e.eval(expr, record)
require.NoError(t, err)
id := col.DataType().ID()
require.Equal(t, arrow.STRUCT, id)
arr, ok := col.(*array.Struct)
require.True(t, ok)
require.Equal(t, tt.expectedFields, arr.NumField()) // value, error, errorDetails
// Convert record to rows for comparison
actual, err := structToRows(arr)
require.NoError(t, err)
require.Equal(t, tt.expectedOutput, actual)
})
}
}