sql_yacc.yy:

%token	CAST_SYM

%token	CHECKSUM_SYM

%token	CHECK_SYM

%token	CIPHER

%token	COMMITTED_SYM

%token	COLUMNS

%token	COLUMN_SYM

%token	IN_SYM

%token	ISOLATION

%token	ISAM_SYM

%token	ISSUER

%token	JOIN_SYM

%token	KEYS

%token	KEY_SYM

%token	MASTER_USER_SYM

%token	MASTER_LOG_FILE_SYM

%token	MASTER_LOG_POS_SYM

%token	MASTER_LOG_SEQ_SYM

%token	MASTER_PASSWORD_SYM

%token	MASTER_PORT_SYM

%token	MASTER_CONNECT_RETRY_SYM

%token	NEW_SYM

%token	NCHAR_SYM

%token	NOT

%token  NO_FOREIGN_KEY_CHECKS

%token	NO_SYM

%token	NULL_SYM

%token	NUM

%token	REAL_NUM

%token	REFERENCES

%token	REGEXP

%token  RELAXED_UNIQUE_CHECKS

%token	RELOAD

%token	RENAME

%token	REPEATABLE_SYM

	opt_mi_check_type opt_to mi_check_types normal_join

	table_to_table_list table_to_table opt_table_list opt_as

	handler_rkey_function handler_read_or_scan

	single_multi table_wild_list table_wild_one opt_wild union union_list

	single_multi table_wild_list table_wild_one opt_wild opt_union union_list

	precision union_option opt_and

END_OF_INPUT

	    lex->lock_option= (using_update_log) ? TL_READ_NO_INSERT : TL_READ;

	    mysql_init_select(lex);

          }

          select_options select_item_list opt_select_from union {};

          select_options select_item_list opt_select_from opt_union {};

opt_as:

	/* empty */ {}

	select_init { Lex->sql_command=SQLCOM_SELECT; };

select_init:

	SELECT_SYM select_part2 { Select->braces=false;	} union

	SELECT_SYM select_part2 { Select->braces=false;	} opt_union

	|

	'(' SELECT_SYM 	select_part2 ')' { Select->braces=true;} union_opt;

	    mysql_init_select(lex);

	  }

	  select_options select_item_list select_from select_lock_type

          union {};

          opt_union {};

values_list:

	values_list ','  no_braces

*/

union:	

opt_union:	

	/* empty */ {}

	| union_list;

	;

union_opt:

	union {}

	union_list {}

	| optional_order_or_limit {};

optional_order_or_limit:

	/* empty */ {}

      	/* empty 

           intentional reduce/reduce conflict here !!!

           { code } below should not be executed

           when neither ORDER BY nor LIMIT are used */ {}

	|

	  {

    	    LEX *lex=Lex;