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Diffstat (limited to 'mysql-test/t/count_distinct.test')
| -rw-r--r-- | mysql-test/t/count_distinct.test | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/t/count_distinct.test b/mysql-test/t/count_distinct.test index 239edea2422..1f0404876cb 100644 --- a/mysql-test/t/count_distinct.test +++ b/mysql-test/t/count_distinct.test @@ -46,3 +46,12 @@ insert into t1 values (1); create table t2 (f1 int,f2 int); select t1.f1,count(distinct t2.f2),count(distinct 1,NULL) from t1 left join t2 on t1.f1=t2.f1 group by t1.f1; drop table t1,t2; + + +# +# Empty tables +# +create table t1 (f int); +select count(distinct f) from t1; +drop table t1; + |