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author | Igor Babaev <igor@askmonty.org> | 2012-12-13 23:05:12 -0800 |
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committer | Igor Babaev <igor@askmonty.org> | 2012-12-13 23:05:12 -0800 |
commit | a06224bd1594ea1da650f748a8956922eafd2363 (patch) | |
tree | 99fc4c066ce8e3b9c0037333c62b993a787458d8 /sql/sql_join_cache.cc | |
parent | 65820439bdafeead66496b489c076012c334c710 (diff) | |
download | mariadb-git-a06224bd1594ea1da650f748a8956922eafd2363.tar.gz |
Addressed all remaining issues from the review of the patch
that introduced engine independent persistent statistics.
In particular:
- added an enumeration type for possible values of the system
variable use_stat_tables
- renamed KEY::real_rec_per_key to KEY::actual_rec_per_key
- optimized the collection of statistical data for any primary
key defined only on one column.
Diffstat (limited to 'sql/sql_join_cache.cc')
-rw-r--r-- | sql/sql_join_cache.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/sql_join_cache.cc b/sql/sql_join_cache.cc index 225bb413195..ac96746c389 100644 --- a/sql/sql_join_cache.cc +++ b/sql/sql_join_cache.cc @@ -3812,7 +3812,8 @@ uint JOIN_TAB_SCAN_MRR::aux_buffer_incr(ulong recno) uint incr= 0; TABLE_REF *ref= &join_tab->ref; TABLE *tab= join_tab->table; - uint rec_per_key= tab->key_info[ref->key].real_rec_per_key(ref->key_parts-1); + uint rec_per_key= + tab->key_info[ref->key].actual_rec_per_key(ref->key_parts-1); set_if_bigger(rec_per_key, 1); if (recno == 1) incr= ref->key_length + tab->file->ref_length; |