Commit 8deafa80 authored by unknown's avatar unknown
Browse files

order_by.result, order_by.test: 

  Added a test case for bug #7672.
sql_yacc.yy:
  Fixed bug #7672.
  Made queries of the form (SELECT ...) ORDER BY ... to
  be equivalent to SELECT ... ORDER BY ...


sql/sql_yacc.yy:
  Fixed bug #7672.
  Made queries of the form (SELECT ...) ORDER BY ... to
  be equivalent to SELECT ... ORDER BY ...
mysql-test/t/order_by.test:
  Added a test case for bug #7672.
mysql-test/r/order_by.result:
  Added a test case for bug #7672.
parent b7c59b9e

mysql-test/r/order_by.result

+17 −0
Original line number Diff line number Diff line
@@ -554,3 +554,20 @@ explain select id,t from t1 force index (primary) order by id; 
table	type	possible_keys	key	key_len	ref	rows	Extra

t1	index	NULL	PRIMARY	4	NULL	1000	

drop table t1;

CREATE TABLE t1 (a int);

INSERT INTO t1 VALUES (2), (1), (1), (2), (1);

SELECT a FROM t1 ORDER BY a;

a

1

1

1

2

2

(SELECT a FROM t1) ORDER BY a;

a

1

1

1

2

2

DROP TABLE t1;

mysql-test/t/order_by.test

+12 −1
Original line number Diff line number Diff line
@@ -364,3 +364,14 @@ enable_query_log; 
explain select id,t from t1 order by id;

explain select id,t from t1 force index (primary) order by id;

drop table t1;



#

# Bug #7672 - a wrong result for a select query in braces followed by order by

#



CREATE TABLE t1 (a int);

INSERT INTO t1 VALUES (2), (1), (1), (2), (1);

SELECT a FROM t1 ORDER BY a;

(SELECT a FROM t1) ORDER BY a;

DROP TABLE t1;

sql/sql_yacc.yy

+8 −5
Original line number Diff line number Diff line
@@ -4033,12 +4033,15 @@ optional_order_or_limit: 
	      send_error(&lex->thd->net, ER_SYNTAX_ERROR);

	      YYABORT;

	    }

            if (lex->select != &lex->select_lex)

            {

	      if (mysql_new_select(lex))

	        YYABORT;

	      mysql_init_select(lex);

	      lex->select->linkage=NOT_A_SELECT;

	      lex->select->select_limit=lex->thd->variables.select_limit;

            }

	  }

	  opt_order_clause limit_clause

	;