[FEAT MERGE]:Oracle Json Supported

src/sql/ob_sql_define.h

@@ -104,7 +104,17 @@ enum PathType
   SUBQUERY,
   FAKE_CTE_TABLE_ACCESS,
   FUNCTION_TABLE_ACCESS,
-  TEMP_TABLE_ACCESS
+  TEMP_TABLE_ACCESS,
+  JSON_TABLE_ACCESS
+};
+
+enum JtColType {
+  INVALID_COL_TYPE = 0,
+  COL_TYPE_ORDINALITY, // 1
+  COL_TYPE_EXISTS, // 2
+  COL_TYPE_QUERY, // 3
+  COL_TYPE_VALUE, // 4
+  NESTED_COL_TYPE = 5,
 };
 
 enum ObNameTypeClass