Merge pull request DTStack#141 from HaydenOrz/fix/flink_sql_grammar

Fix/flink sql grammar

Author: mumiao

src/grammar/flinksql/FlinkSqlLexer.g4

@@ -227,6 +227,7 @@ KW_CHECK:                            'CHECK';
 KW_CLOB:                             'CLOB';
 KW_CLOSE:                            'CLOSE';
 KW_COALESCE:                         'COALESCE';
+KW_CONFIG:                           'CONFIG';
 KW_COLLATE:                          'COLLATE';
 KW_COLLECT:                          'COLLECT';
 KW_COLUMN:                           'COLUMN';

src/grammar/flinksql/FlinkSqlParser.g4

@@ -97,6 +97,7 @@ dtAddStatement
     | KW_ADD (KW_PYTHON_FILES | KW_PYTHON_REQUIREMENTS | KW_PYTHON_DEPENDENCIES | KW_PYTHON_JAR | KW_PYTHON_ARCHIVES) KW_WITH dtFilePath KW_RENAME uid
     | KW_ADD KW_PYTHON_PARAMETER dtFilePath
     | KW_ADD KW_ENGINE KW_FILE KW_WITH dtFilePath KW_RENAME uid KW_KEY uid
+    | KW_ADD KW_CONFIG KW_FILE KW_WITH dtFilePath KW_FOR uid KW_AS uid
     ;
 
 dtFilePath
@@ -1023,6 +1024,8 @@ reservedKeywordsUsedAsFuncName
     | KW_POSITION
     | KW_POWER
     | KW_QUARTER
+    | KW_ROW
+    | KW_ROWS
     | KW_RANK
     | KW_RIGHT
     | KW_SECOND