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MDEV-7245: Incorrect display of subquery cache in union.result

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- Do set nest_level and nest_level_base for fake_select_lex objects.
This commit is contained in:
Sergei Petrunia
2014-12-02 00:18:57 +03:00
parent bf3b4a23f7
commit 54392f0a22
2 changed files with 4 additions and 1 deletions
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2
mysql-test/r/union.result
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@ -1617,7 +1617,7 @@ NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort
3 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1276 Field or reference 'a' of SELECT #3 was resolved in SELECT #-1
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` union select `test`.`t1`.`a` AS `a` from `test`.`t1` order by <expr_cache><>((select `a` from `test`.`t2` where (`test`.`t2`.`b` = 12)))
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` union select `test`.`t1`.`a` AS `a` from `test`.`t1` order by <expr_cache><`a`>((select `a` from `test`.`t2` where (`test`.`t2`.`b` = 12)))
# Should not crash
SELECT * FROM t1 UNION SELECT * FROM t1
ORDER BY (SELECT a FROM t2 WHERE b = 12);

3
sql/sql_parse.cc
View File

@ -7757,6 +7757,9 @@ bool st_select_lex_unit::add_fake_select_lex(THD *thd_arg)
fake_select_lex->context.resolve_in_select_list= TRUE;
fake_select_lex->context.select_lex= fake_select_lex;
fake_select_lex->nest_level_base= first_select()->nest_level_base;
fake_select_lex->nest_level=first_select()->nest_level;
if (!is_union())
{
/*