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| author | igor@olga.mysql.com <> | 2007-05-12 10:54:23 -0700 |
|---|---|---|
| committer | igor@olga.mysql.com <> | 2007-05-12 10:54:23 -0700 |
| commit | 82239b3e9c3ccef18cda3531c3e29dc94c92673f (patch) | |
| tree | dae2b20962e2b9f5326b2d11adc18ffff0fb7656 /sql/sql_select.h | |
| parent | 5fbb3c156f5c88d112bf87a0d03e7ede9a603e79 (diff) | |
| parent | 11d5f7ee1c4304425480ed803ef86a3abfe0c05a (diff) | |
| download | mariadb-git-82239b3e9c3ccef18cda3531c3e29dc94c92673f.tar.gz | |
Merge olga.mysql.com:/home/igor/mysql-5.0-opt
into olga.mysql.com:/home/igor/mysql-5.1-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 644224d1bed..971b7caf69d 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -160,6 +160,13 @@ 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 */ |