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Diffstat (limited to 'mysql-test/r/func_group.result')
-rw-r--r-- | mysql-test/r/func_group.result | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result index 3d989ad1730..94147640cde 100644 --- a/mysql-test/r/func_group.result +++ b/mysql-test/r/func_group.result @@ -1477,3 +1477,47 @@ COUNT(*) SET SQL_MODE=default; DROP TABLE t1; End of 5.0 tests +# +# BUG#47280 - strange results from count(*) with order by multiple +# columns without where/group +# +# +# Initialize test +# +CREATE TABLE t1 ( +pk INT NOT NULL, +i INT, +PRIMARY KEY (pk) +); +INSERT INTO t1 VALUES (1,11),(2,12),(3,13); +# +# Start test +# All the following queries shall return 1 record +# + +# Masking all correct values {11...13} for column i in this result. +SELECT MAX(pk) as max, i +FROM t1 +ORDER BY max; +max i +3 # + +EXPLAIN +SELECT MAX(pk) as max, i +FROM t1 +ORDER BY max; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using temporary + +# Only 11 is correct for collumn i in this result +SELECT MAX(pk) as max, i +FROM t1 +WHERE pk<2 +ORDER BY max; +max i +1 11 +# +# Cleanup +# +DROP TABLE t1; +End of 5.1 tests |