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| author | Varun Gupta <varun.gupta@mariadb.com> | 2021-02-25 19:59:51 +0530 |
|---|---|---|
| committer | Varun Gupta <varun.gupta@mariadb.com> | 2021-03-04 22:50:00 +0530 |
| commit | f691d9865becfd242ba44cc632034433336af1e7 (patch) | |
| tree | 8d30254398f114e7b61d3ecfbcb328e45ec3b946 /mysql-test/main/ssl_compress.result | |
| parent | 71d30d01aa1426183526f9bdbc6d2a718fac75ac (diff) | |
| download | mariadb-git-f691d9865becfd242ba44cc632034433336af1e7.tar.gz | |
MDEV-7317: Make an index ignorable to the optimizer
This feature adds the functionality of ignorability for indexes.
Indexes are not ignored be default.
To control index ignorability explicitly for a new index,
use IGNORE or NOT IGNORE as part of the index definition for
CREATE TABLE, CREATE INDEX, or ALTER TABLE.
Primary keys (explicit or implicit) cannot be made ignorable.
The table INFORMATION_SCHEMA.STATISTICS get a new column named IGNORED that
would store whether an index needs to be ignored or not.
Diffstat (limited to 'mysql-test/main/ssl_compress.result')
| -rw-r--r-- | mysql-test/main/ssl_compress.result | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mysql-test/main/ssl_compress.result b/mysql-test/main/ssl_compress.result index 8c63c798afa..69de425cdc1 100644 --- a/mysql-test/main/ssl_compress.result +++ b/mysql-test/main/ssl_compress.result @@ -2097,10 +2097,10 @@ fld6 char(4) latin1_swedish_ci NO # show full columns from t2 from test like 's%'; Field Type Collation Null Key Default Extra Privileges Comment show keys from t2; -Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment -t2 0 PRIMARY 1 auto A 1199 NULL NULL BTREE -t2 0 fld1 1 fld1 A 1199 NULL NULL BTREE -t2 1 fld3 1 fld3 A NULL NULL NULL BTREE +Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored +t2 0 PRIMARY 1 auto A 1199 NULL NULL BTREE NO +t2 0 fld1 1 fld1 A 1199 NULL NULL BTREE NO +t2 1 fld3 1 fld3 A NULL NULL NULL BTREE NO drop table t4, t3, t2, t1; CREATE TABLE t1 ( cont_nr int(11) NOT NULL auto_increment, |