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| author | Tor Didriksen <tor.didriksen@oracle.com> | 2012-10-01 13:12:38 +0200 |
|---|---|---|
| committer | Tor Didriksen <tor.didriksen@oracle.com> | 2012-10-01 13:12:38 +0200 |
| commit | 4d29767e6c57198eb4650421f730701b4dd4d2d7 (patch) | |
| tree | 11f1b961f04ac1c8dd7d85ea69c7a7b7b626695a /sql/sql_lex.cc | |
| parent | eff72188b1fe5e4840d0b959d9429ebfa7c8f5e6 (diff) | |
| download | mariadb-git-4d29767e6c57198eb4650421f730701b4dd4d2d7.tar.gz | |
Bug#14683676 ENDLESS MEMORY CONSUMPTION IN SETUP_REF_ARRAY WITH MAX IN SUBQUERY
n_child_sum_items kept increasing.
Since it is used for calculating the size of ref_pointer_array,
we will allocate larger and larger chunks of memory, until we hit some
operating system limit.
The memory is free()d at disconnect, but is most likely *not*
returned to the operating system.
Diffstat (limited to 'sql/sql_lex.cc')
| -rw-r--r-- | sql/sql_lex.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc index fd9367b99f2..e171cf1c06d 100644 --- a/sql/sql_lex.cc +++ b/sql/sql_lex.cc @@ -1616,6 +1616,7 @@ void st_select_lex::init_query() ref_pointer_array= 0; select_n_where_fields= 0; select_n_having_items= 0; + n_child_sum_items= 0; subquery_in_having= explicit_limit= 0; is_item_list_lookup= 0; first_execution= 1; |