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| author | Sergey Glukhov <sergey.glukhov@oracle.com> | 2012-08-09 15:34:52 +0400 |
|---|---|---|
| committer | Sergey Glukhov <sergey.glukhov@oracle.com> | 2012-08-09 15:34:52 +0400 |
| commit | 2f30b34095e286877cda7156ae9622a4154147bd (patch) | |
| tree | 45667344474d3cdd896bdb5596f052371ec18359 /sql/item_subselect.cc | |
| parent | eede4140163d12b892ff140e6a4abc40df5ff87a (diff) | |
| download | mariadb-git-2f30b34095e286877cda7156ae9622a4154147bd.tar.gz | |
Bug #14409015 MEMORY LEAK WHEN REFERENCING OUTER FIELD IN HAVING
When resolving outer fields, Item_field::fix_outer_fields()
creates new Item_refs for each execution of a prepared statement, so
these must be allocated in the runtime memroot. The memroot switching
before resolving JOIN::having causes these to be allocated in the
statement root, leaking memory for each PS execution.
sql/item_subselect.cc:
addon, fix for 11829691, item could be created in
runtime memroot, so we need to use real_item instead.
Diffstat (limited to 'sql/item_subselect.cc')
| -rw-r--r-- | sql/item_subselect.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/item_subselect.cc b/sql/item_subselect.cc index 46d49797b9c..2c91d0573c1 100644 --- a/sql/item_subselect.cc +++ b/sql/item_subselect.cc @@ -1135,7 +1135,7 @@ Item_in_subselect::single_value_transformer(JOIN *join, } else { - Item *item= (Item*) select_lex->item_list.head(); + Item *item= (Item*) select_lex->item_list.head()->real_item(); if (select_lex->table_list.elements) { |