fix not in bug (#5741)

Signed-off-by: fluorinedog <fluorinedog@gmail.com>

internal/proxynode/plan_parser.go

@@ -192,6 +192,9 @@ func (context *ParserContext) handleArrayExpr(node *ant_ast.Node, dataType schem
 }
 
 func (context *ParserContext) handleInExpr(node *ant_ast.BinaryNode) (*planpb.Expr, error) {
+	if node.Operator != "in" && node.Operator != "not in" {
+		return nil, fmt.Errorf("invalid Operator(%s)", node.Operator)
+	}
 	idNode, ok := node.Left.(*ant_ast.IdentifierNode)
 	if !ok {
 		return nil, fmt.Errorf("left operand of the InExpr must be identifier")
@@ -213,6 +216,10 @@ func (context *ParserContext) handleInExpr(node *ant_ast.BinaryNode) (*planpb.Ex
 			},
 		},
 	}
+
+	if node.Operator == "not in" {
+		return context.createNotExpr(expr)
+	}
 	return expr, nil
 }
 

internal/proxynode/plan_parser_test.go

@@ -126,6 +126,7 @@ func TestExprPlan_Str(t *testing.T) {
 	exprStrs := []string{
 		"age >= 420000 && age < 420010", // range
 		"age == 420000 || age == 420001 || age == 420002 || age == 420003 || age == 420004", // term
+		"age not in [1, 2, 3]",
 	}
 
 	for offset, exprStr := range exprStrs {