Fix bug for supporting single quotes (#24464)

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

internal/parser/planparserv2/parser_visitor.go

@@ -951,10 +951,11 @@ func (v *ParserVisitor) getColumnInfoFromJSONIdentifier(identifier string) (*pla
 		if path == "" {
 			return nil, fmt.Errorf("invalid identifier: %s", identifier)
 		}
-		if strings.HasPrefix(path, "\"") && strings.HasSuffix(path, "\"") {
+		if (strings.HasPrefix(path, "\"") && strings.HasSuffix(path, "\"")) ||
+			(strings.HasPrefix(path, "'") && strings.HasSuffix(path, "'")) {
 			path = path[1 : len(path)-1]
 		} else if _, err := strconv.ParseInt(path, 10, 64); err != nil {
-			return nil, fmt.Errorf("json key must be enclosed in double quotes: \"%s\"", path)
+			return nil, fmt.Errorf("json key must be enclosed in double quotes or single quotes: \"%s\"", path)
 		}
 		nestedPath = append(nestedPath, path)
 	}

internal/parser/planparserv2/plan_parser_v2_test.go

@@ -892,6 +892,33 @@ func Test_JSONExpr(t *testing.T) {
 		RoundDecimal: 0,
 	})
 	assert.NoError(t, err)
+
+	expr = `A['B'] == "abc\"bbb\"cc"`
+	_, err = CreateSearchPlan(schema, expr, "FloatVectorField", &planpb.QueryInfo{
+		Topk:         0,
+		MetricType:   "",
+		SearchParams: "",
+		RoundDecimal: 0,
+	})
+	assert.NoError(t, err)
+
+	expr = `A['B'] == 'abc"cba'`
+	_, err = CreateSearchPlan(schema, expr, "FloatVectorField", &planpb.QueryInfo{
+		Topk:         0,
+		MetricType:   "",
+		SearchParams: "",
+		RoundDecimal: 0,
+	})
+	assert.NoError(t, err)
+
+	expr = `A['B'] == 'abc\"cba'`
+	_, err = CreateSearchPlan(schema, expr, "FloatVectorField", &planpb.QueryInfo{
+		Topk:         0,
+		MetricType:   "",
+		SearchParams: "",
+		RoundDecimal: 0,
+	})
+	assert.NoError(t, err)
 }
 
 func Test_InvalidExprOnJSONField(t *testing.T) {