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| author | Sergey Petrunya <psergey@askmonty.org> | 2011-04-02 14:04:45 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2011-04-02 14:04:45 +0400 |
| commit | 997445bc8eb578355b41abc3f4e42f579f900043 (patch) | |
| tree | 1224e5382ffa0b158db9d4d109114ba28b6c361d /mysql-test/r/ps_1general.result | |
| parent | 886d84d6d15f17d91a37453875b386167a9fef76 (diff) | |
| download | mariadb-git-997445bc8eb578355b41abc3f4e42f579f900043.tar.gz | |
Make EXPLAIN better at displaying MRR/BKA:
- "Using MRR" is no longer shown with range access.
- Instead, both range and BKA accesses will show one of the following:
= "Rowid-ordered scan"
= "Key-ordered scan"
= "Key-ordered Rowid-ordered scan"
depending on whether DS-MRR implementation will do scan keys in order, rowids in order,
or both.
- The patch also introduces a way for other storage engines/MRR implementations to
pass information to EXPLAIN output about the properties of employed MRR scans.
Diffstat (limited to 'mysql-test/r/ps_1general.result')
| -rw-r--r-- | mysql-test/r/ps_1general.result | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mysql-test/r/ps_1general.result b/mysql-test/r/ps_1general.result index 174d7764cf3..f280bd93ffc 100644 --- a/mysql-test/r/ps_1general.result +++ b/mysql-test/r/ps_1general.result @@ -465,9 +465,9 @@ def key 253 64 7 Y 0 31 8 def key_len 253 4096 1 Y 0 31 8 def ref 253 2048 0 Y 0 31 8 def rows 8 10 1 Y 32928 0 63 -def Extra 253 255 48 N 1 31 8 +def Extra 253 255 57 N 1 31 8 id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 3 Using index condition; Using MRR; Using filesort +1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 3 Using index condition; Rowid-ordered scan; Using filesort drop table if exists t2; create table t2 (id smallint, name varchar(20)) ; prepare stmt1 from ' insert into t2 values(?, ?) ' ; |