fix: query failed for int value on edge(#46075) (#46126)

related: #46075

Signed-off-by: MrPresent-Han <chun.han@gmail.com>
Co-authored-by: MrPresent-Han <chun.han@gmail.com>

internal/parser/planparserv2/parser_visitor.go

@@ -20,6 +20,24 @@ type ParserVisitorArgs struct {
 	Timezone string
 }
 
+// int64OverflowError is a special error type used to handle the case where
+// 9223372036854775808 (which exceeds int64 max) is used with unary minus
+// to represent -9223372036854775808 (int64 minimum value).
+// This happens because ANTLR parses -9223372036854775808 as Unary(SUB, Integer(9223372036854775808)),
+// causing the integer literal to exceed int64 range before the unary minus is applied.
+type int64OverflowError struct {
+	literal string
+}
+
+func (e *int64OverflowError) Error() string {
+	return fmt.Sprintf("int64 overflow: %s", e.literal)
+}
+
+func isInt64OverflowError(err error) bool {
+	_, ok := err.(*int64OverflowError)
+	return ok
+}
+
 type ParserVisitor struct {
 	parser.BasePlanVisitor
 	schema *typeutil.SchemaHelper
@@ -108,6 +126,15 @@ func (v *ParserVisitor) VisitInteger(ctx *parser.IntegerContext) interface{} {
 	literal := ctx.IntegerConstant().GetText()
 	i, err := strconv.ParseInt(literal, 0, 64)
 	if err != nil {
+		// Special case: 9223372036854775808 is out of int64 range,
+		// but -9223372036854775808 is valid (int64 minimum value).
+		// This happens because ANTLR parses -9223372036854775808 as:
+		//   Unary(SUB, Integer(9223372036854775808))
+		// The integer literal 9223372036854775808 exceeds int64 max (9223372036854775807)
+		// before the unary minus is applied. We handle this in VisitUnary.
+		if literal == "9223372036854775808" {
+			return &int64OverflowError{literal: literal}
+		}
 		return err
 	}
 	return &ExprWithType{
@@ -950,6 +977,23 @@ func (v *ParserVisitor) VisitReverseRange(ctx *parser.ReverseRangeContext) inter
 func (v *ParserVisitor) VisitUnary(ctx *parser.UnaryContext) interface{} {
 	child := ctx.Expr().Accept(v)
 	if err := getError(child); err != nil {
+		// Special case: handle -9223372036854775808
+		// ANTLR parses -9223372036854775808 as Unary(SUB, Integer(9223372036854775808)).
+		// The integer literal 9223372036854775808 exceeds int64 max, but when combined
+		// with unary minus, it represents the valid int64 minimum value.
+		if isInt64OverflowError(err) && ctx.GetOp().GetTokenType() == parser.PlanParserSUB {
+			return &ExprWithType{
+				dataType: schemapb.DataType_Int64,
+				expr: &planpb.Expr{
+					Expr: &planpb.Expr_ValueExpr{
+						ValueExpr: &planpb.ValueExpr{
+							Value: NewInt(math.MinInt64),
+						},
+					},
+				},
+				nodeDependent: true,
+			}
+		}
 		return err
 	}
 

internal/parser/planparserv2/plan_parser_v2_test.go

@@ -912,6 +912,9 @@ func TestCreateRetrievePlan(t *testing.T) {
 	schema := newTestSchemaHelper(t)
 	_, err := CreateRetrievePlan(schema, "Int64Field > 0", nil)
 	assert.NoError(t, err)
+
+	_, err = CreateRetrievePlan(schema, "id > -9223372036854775808", nil)
+	assert.NoError(t, err)
 }
 
 func TestCreateSearchPlan(t *testing.T) {
@@ -1007,7 +1010,7 @@ func TestExpr_Invalid(t *testing.T) {
 		`"str" != false`,
 		`VarCharField != FloatField`,
 		`FloatField == VarCharField`,
-		`A == -9223372036854775808`,
+		`A == -9223372036854775809`,
 		// ---------------------- relational --------------------
 		//`not_in_schema < 1`, // maybe in json
 		//`1 <= not_in_schema`, // maybe in json

internal/proxy/task_query_test.go

@@ -18,6 +18,7 @@ package proxy
 import (
 	"context"
 	"fmt"
+	"math"
 	"testing"
 	"time"
 
@@ -840,6 +841,61 @@ func TestTaskQuery_functions(t *testing.T) {
 				assert.Equal(t, []int64{11}, result.GetFieldsData()[0].GetScalars().GetLongData().Data)
 			})
 		})
+
+		t.Run("test SelectMinPK with pk equals MaxInt64 and firstInt true", func(t *testing.T) {
+			// Test case to cover pk == minIntPK && firstInt condition in SelectMinPK
+			// When the first int64 PK equals math.MaxInt64 (which equals initial minIntPK),
+			// and firstInt is true, the condition firstInt || pk < minIntPK evaluates to true
+			// This ensures the branch is taken even when pk == minIntPK
+			const (
+				Dim                  = 8
+				Int64FieldName       = "Int64Field"
+				FloatVectorFieldName = "FloatVectorField"
+				Int64FieldID         = common.StartOfUserFieldID + 1
+				FloatVectorFieldID   = common.StartOfUserFieldID + 2
+			)
+			maxInt64PK := int64(math.MaxInt64)
+			FloatVector := []float32{1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0}
+			fieldDataMaxPK := getFieldData(Int64FieldName, Int64FieldID, schemapb.DataType_Int64, []int64{maxInt64PK}, 1)
+			vectorDataMaxPK := getFieldData(FloatVectorFieldName, FloatVectorFieldID, schemapb.DataType_FloatVector, FloatVector[0:8], Dim)
+
+			// Create result with MaxInt64 as the first PK to trigger pk == minIntPK && firstInt condition
+			// Only the first result has data with pk = maxInt64PK
+			rMaxPK := &internalpb.RetrieveResults{
+				Ids: &schemapb.IDs{
+					IdField: &schemapb.IDs_IntId{
+						IntId: &schemapb.LongArray{
+							Data: []int64{maxInt64PK},
+						},
+					},
+				},
+				FieldsData:    []*schemapb.FieldData{fieldDataMaxPK, vectorDataMaxPK},
+				HasMoreResult: false,
+			}
+
+			// Create a second result with no data (empty result)
+			rEmpty := &internalpb.RetrieveResults{
+				Ids: &schemapb.IDs{
+					IdField: &schemapb.IDs_IntId{
+						IntId: &schemapb.LongArray{
+							Data: []int64{},
+						},
+					},
+				},
+				FieldsData:    []*schemapb.FieldData{},
+				HasMoreResult: false,
+			}
+
+			// Test with MaxInt64 first to ensure it's handled correctly when pk == minIntPK && firstInt
+			// The reduced result should include the maxInt64PK result
+			result, err := reduceRetrieveResults(context.Background(),
+				[]*internalpb.RetrieveResults{rMaxPK, rEmpty},
+				&queryParams{limit: typeutil.Unlimited})
+			assert.NoError(t, err)
+			assert.Equal(t, 2, len(result.GetFieldsData()))
+			// Should include the maxInt64PK result
+			assert.Equal(t, []int64{maxInt64PK}, result.GetFieldsData()[0].GetScalars().GetLongData().Data)
+		})
 	})
 }
 

pkg/util/typeutil/schema.go

@@ -2045,6 +2045,7 @@ func SelectMinPK[T ResultWithID](results []T, cursors []int64) (int, bool) {
 		minIntPK    int64 = math.MaxInt64
 
 		firstStr = true
+		firstInt = true
 		minStrPK string
 	)
 	for i, cursor := range cursors {
@@ -2064,7 +2065,8 @@ func SelectMinPK[T ResultWithID](results []T, cursors []int64) (int, bool) {
 				sel = i
 			}
 		case int64:
-			if pk < minIntPK {
+			if firstInt || pk < minIntPK {
+				firstInt = false
 				minIntPK = pk
 				sel = i
 			}