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mdev-4173: Wrong result (extra row) with semijoin=on, joins in outer query, LEFT JOIN in the subquery

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Apply the patch from Patryk Pomykalski:
- create_internal_tmp_table_from_heap() will now return information whether
  the last row that we tried to write was a duplicate row.
(mysql-5.6 also has this change)
This commit is contained in:
Sergey Petrunya
2013-07-16 09:22:17 +04:00
parent 716a49a19e
commit 9651a6f574
10 changed files with 150 additions and 17 deletions
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3
sql/sql_select.h
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@ -1819,7 +1819,8 @@ void free_tmp_table(THD *thd, TABLE *entry);
bool create_internal_tmp_table_from_heap(THD *thd, TABLE *table,
ENGINE_COLUMNDEF *start_recinfo,
ENGINE_COLUMNDEF **recinfo,
int error, bool ignore_last_dupp_key_error);
int error, bool ignore_last_dupp_key_error,
bool *is_duplicate);
bool create_internal_tmp_table(TABLE *table, KEY *keyinfo,
ENGINE_COLUMNDEF *start_recinfo,
ENGINE_COLUMNDEF **recinfo,