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| author | Sergei Golubchik <sergii@pisem.net> | 2014-05-12 12:56:13 +0200 |
|---|---|---|
| committer | Sergei Golubchik <sergii@pisem.net> | 2014-05-12 12:56:13 +0200 |
| commit | f6524e496312a6d3b870c74118f921c33201f3d7 (patch) | |
| tree | 99aa71269adcfad1c5fc4c4399633e0af62162b8 | |
| parent | 124428a9e28e59f98b25d8ee07b57d264f63cbe4 (diff) | |
| download | mariadb-git-f6524e496312a6d3b870c74118f921c33201f3d7.tar.gz | |
MDEV-4925 Wrong result - count(distinct), Using index for group-by (scanning)
added the test case
| -rw-r--r-- | mysql-test/suite/innodb/r/count_distinct.result | 12 | ||||
| -rw-r--r-- | mysql-test/suite/innodb/t/count_distinct.test | 15 |
2 files changed, 27 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb/r/count_distinct.result b/mysql-test/suite/innodb/r/count_distinct.result new file mode 100644 index 00000000000..201767b8f42 --- /dev/null +++ b/mysql-test/suite/innodb/r/count_distinct.result @@ -0,0 +1,12 @@ +CREATE TABLE t1 ( +id int NOT NULL AUTO_INCREMENT, +a int NOT NULL, +b int NOT NULL, +PRIMARY KEY (id), +UNIQUE KEY ba (b, a) +) ENGINE=InnoDB; +INSERT INTO t1 (a, b) VALUES(1,101),(1,102),(1,103),(1,104),(1,105),(1,106),(1,107),(1,108),(1,109),(1,110); +SELECT COUNT(DISTINCT b) FROM t1 WHERE a = 1; +COUNT(DISTINCT b) +10 +DROP TABLE t1; diff --git a/mysql-test/suite/innodb/t/count_distinct.test b/mysql-test/suite/innodb/t/count_distinct.test new file mode 100644 index 00000000000..94a70260e23 --- /dev/null +++ b/mysql-test/suite/innodb/t/count_distinct.test @@ -0,0 +1,15 @@ +--source include/have_innodb.inc + +# +# MDEV-4925 Wrong result - count(distinct), Using index for group-by (scanning) +# +CREATE TABLE t1 ( + id int NOT NULL AUTO_INCREMENT, + a int NOT NULL, + b int NOT NULL, + PRIMARY KEY (id), + UNIQUE KEY ba (b, a) +) ENGINE=InnoDB; +INSERT INTO t1 (a, b) VALUES(1,101),(1,102),(1,103),(1,104),(1,105),(1,106),(1,107),(1,108),(1,109),(1,110); +SELECT COUNT(DISTINCT b) FROM t1 WHERE a = 1; +DROP TABLE t1; |