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| author | Sergey Petrunya <psergey@askmonty.org> | 2011-11-25 05:56:58 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2011-11-25 05:56:58 +0400 |
| commit | f84dbf4b205f311f379a8fd0c6dc1f0fd893e073 (patch) | |
| tree | a4f730ce795ad5b52aec23ebf6705519c6344487 /sql/sql_select.h | |
| parent | 694ce95557bc174dae2bc32279024102848cf5ee (diff) | |
| download | mariadb-git-f84dbf4b205f311f379a8fd0c6dc1f0fd893e073.tar.gz | |
Semi-join optimizations code cleanup part 2:
- Make EXPLAIN display "Start temporary" at the start of the fanout (it used to display
at the first table whose rowid gets into temp. table which is not that useful for
the user)
- Updated test results (all checked)
Diffstat (limited to 'sql/sql_select.h')
| -rw-r--r-- | sql/sql_select.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h index 21c5dc7d65e..2b307c20dbe 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -341,6 +341,8 @@ typedef struct st_join_table { /* Variables for semi-join duplicate elimination */ SJ_TMP_TABLE *flush_weedout_table; SJ_TMP_TABLE *check_weed_out_table; + /* for EXPLAIN only: */ + SJ_TMP_TABLE *first_weedout_table; /* If set, means we should stop join enumeration after we've got the first |