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| author | Varun Gupta <varun.gupta@mariadb.com> | 2020-04-21 12:16:10 +0530 |
|---|---|---|
| committer | Varun Gupta <varun.gupta@mariadb.com> | 2020-05-01 15:17:10 +0530 |
| commit | 644d9f38b97b198ec356aadfc390e0fef97c53f0 (patch) | |
| tree | 841be926c58ac3b8689d856eb482c71f5fdb8bcd /mysql-test/main/join.test | |
| parent | 7f9dc0d84aeef01747389a3ef074217acdcb2410 (diff) | |
| download | mariadb-git-644d9f38b97b198ec356aadfc390e0fef97c53f0.tar.gz | |
MDEV-21480: Unique key using ref access though eq_ref access can be used
For a unique key if all the keyparts are NOT NULL or the predicates involving
the keyparts is NULL rejecting, then we can use EQ_REF access instead of ref
access with the unique key
Diffstat (limited to 'mysql-test/main/join.test')
| -rw-r--r-- | mysql-test/main/join.test | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mysql-test/main/join.test b/mysql-test/main/join.test index c72ff0e1a8c..07c72827d25 100644 --- a/mysql-test/main/join.test +++ b/mysql-test/main/join.test @@ -1744,7 +1744,7 @@ analyze table t1; set myisam_stats_method=@tmp1; show keys from t1; ---echo # t1 must use ref(t1.a=t0.a) and rows must be 1 (and not 45): +--echo # t1 must use eq_ref(t1.a=t0.a) and rows must be 1 (and not 45): explain select * from t0,t1 where t0.a=t1.a; drop table t0,t1; |