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| author | unknown <konstantin@mysql.com> | 2005-06-24 22:48:46 +0400 |
|---|---|---|
| committer | unknown <konstantin@mysql.com> | 2005-06-24 22:48:46 +0400 |
| commit | e0fde7f52be616932f6c79a350af5d910498d7fd (patch) | |
| tree | 9ae103fc8b2957a8fed538a143020aea9b0565e4 /sql/sql_select.h | |
| parent | 1960fbcf3d9dae7eb08833bdcf5b898224c2b817 (diff) | |
| parent | 97e78d60177b7e06040827902a9a91bc3d104c9d (diff) | |
| download | mariadb-git-e0fde7f52be616932f6c79a350af5d910498d7fd.tar.gz | |
Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into mysql.com:/opt/local/work/mysql-5.0-join_free2push
sql/sql_select.cc:
Auto merged
sql/sql_select.h:
Auto merged
Diffstat (limited to 'sql/sql_select.h')
| -rw-r--r-- | sql/sql_select.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h index 885b50016af..6d33ae2f978 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -325,7 +325,7 @@ class JOIN :public Sql_alloc int optimize(); int reinit(); void exec(); - int cleanup(); + int destroy(); void restore_tmp(); bool alloc_func_list(); bool make_sum_func_list(List<Item> &all_fields, List<Item> &send_fields, @@ -349,7 +349,15 @@ class JOIN :public Sql_alloc int rollup_send_data(uint idx); int rollup_write_data(uint idx, TABLE *table); bool test_in_subselect(Item **where); + /* + Release memory and, if possible, the open tables held by this execution + plan (and nested plans). It's used to release some tables before + the end of execution in order to increase concurrency and reduce + memory consumption. + */ void join_free(bool full); + /* Cleanup this JOIN, possibly for reuse */ + void cleanup(bool full); void clear(); bool save_join_tab(); bool send_row_on_empty_set() |