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| author | unknown <ibabaev@bk-internal.mysql.com> | 2007-05-12 23:42:36 +0200 |
|---|---|---|
| committer | unknown <ibabaev@bk-internal.mysql.com> | 2007-05-12 23:42:36 +0200 |
| commit | de34385a565a07536f314813e02f63aec1d0f369 (patch) | |
| tree | 59d9e31c78caca8be26a8746fa5e83ac54aabb1a /sql/sql_select.h | |
| parent | 0f6e518a3ba975d84ef192ee295bf330368855b3 (diff) | |
| parent | 3d501aece0f68183d0a74aa37d0938ccd91733ac (diff) | |
| download | mariadb-git-clone-5.0.42-build.tar.gz | |
Merge bk-internal.mysql.com:/data0/bk/mysql-5.0clone-5.0.42-build
into bk-internal.mysql.com:/data0/bk/mysql-5.0-opt
Diffstat (limited to 'sql/sql_select.h')
| -rw-r--r-- | sql/sql_select.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h index 5081366c10b..3cdd265df9a 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -159,6 +159,13 @@ typedef struct st_join_table { Read_record_func read_first_record; Next_select_func next_select; READ_RECORD read_record; + /* + Currently the following two fields are used only for a [NOT] IN subquery + if it is executed by an alternative full table scan when the left operand of + the subquery predicate is evaluated to NULL. + */ + Read_record_func save_read_first_record;/* to save read_first_record */ + int (*save_read_record) (READ_RECORD *);/* to save read_record.read_record */ double worst_seeks; key_map const_keys; /* Keys with constant part */ key_map checked_keys; /* Keys checked in find_best */ |