fix: Correctly parse the minimum value of int64 (#41009)

issue: #40729 

Current approach to parse negative numbers is first parse the numeric
part and then multiply the result by -1(mainly to distinguish the
precedence of the negative sign and the subtraction operator). However,
for the minimum value of int64(`-9223372036854775808`), the value
`9223372036854775808` already exceeds the representable range of int64.
As a result, parsing error occurs.
Therefore, use a specific rule to match `-9223372036854775808`.

---------

Signed-off-by: Cai Zhang <cai.zhang@zilliz.com>

internal/parser/planparserv2/Plan.g4

@@ -1,8 +1,8 @@
 grammar Plan;
 
 expr:
-	IntegerConstant											                     # Integer
-	| FloatingConstant										                     # Floating
+	(ADD | SUB)? IntegerConstant											     # Integer
+	| (ADD | SUB)? FloatingConstant										         # Floating
 	| BooleanConstant										                     # Boolean
 	| StringLiteral											                     # String
 	| (Identifier|Meta)           			      							     # Identifier

internal/parser/planparserv2/parser_visitor.go

@@ -98,7 +98,7 @@ func (v *ParserVisitor) VisitBoolean(ctx *parser.BooleanContext) interface{} {
 
 // VisitInteger translates expr to GenericValue.
 func (v *ParserVisitor) VisitInteger(ctx *parser.IntegerContext) interface{} {
-	literal := ctx.IntegerConstant().GetText()
+	literal := ctx.GetText()
 	i, err := strconv.ParseInt(literal, 0, 64)
 	if err != nil {
 		return err
@@ -118,7 +118,7 @@ func (v *ParserVisitor) VisitInteger(ctx *parser.IntegerContext) interface{} {
 
 // VisitFloating translates expr to GenericValue.
 func (v *ParserVisitor) VisitFloating(ctx *parser.FloatingContext) interface{} {
-	literal := ctx.FloatingConstant().GetText()
+	literal := ctx.GetText()
 	f, err := strconv.ParseFloat(literal, 64)
 	if err != nil {
 		return err

internal/parser/planparserv2/plan_parser_v2_test.go

@@ -194,6 +194,7 @@ func TestExpr_UnaryRange(t *testing.T) {
 		`VarCharField <= "str7"`,
 		`JSONField["A"] > 10`,
 		`$meta["A"] > 10`,
+		`A == -9223372036854775808`,
 	}
 	for _, exprStr := range exprStrs {
 		assertValidExpr(t, helper, exprStr)