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Diffstat (limited to 'mysql-test/main/win.result')
-rw-r--r-- | mysql-test/main/win.result | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/mysql-test/main/win.result b/mysql-test/main/win.result index fff859cfa44..a7b215b5052 100644 --- a/mysql-test/main/win.result +++ b/mysql-test/main/win.result @@ -3643,6 +3643,87 @@ x foo drop table t1; # +# MDEV-16579: Wrong result of query using DISTINCT COUNT(*) OVER (*) +# +CREATE TABLE t1 (i int) ; +INSERT INTO t1 VALUES (1),(0),(1),(2),(0),(1),(2),(1),(2); +SELECT DISTINCT COUNT(*) OVER (), MOD(MIN(i),2) FROM t1 GROUP BY i ; +COUNT(*) OVER () MOD(MIN(i),2) +3 0 +3 1 +drop table t1; +# +# MDEV-21318: Wrong results with window functions and implicit grouping +# +CREATE TABLE t1 (a INT); +# +# With empty const table +# The expected result here is 1, NULL +# +explain +SELECT row_number() over(), sum(1) FROM t1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 system NULL NULL NULL NULL 0 Const row not found; Using temporary +SELECT row_number() over(), sum(1) FROM t1; +row_number() over() sum(1) +1 NULL +insert into t1 values (2); +# +# Const table has 1 row, but still impossible where +# The expected result here is 1, NULL +# +EXPLAIN SELECT row_number() over(), sum(1) FROM t1 where a=1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables +SELECT row_number() over(), sum(1) FROM t1 where a=1; +row_number() over() sum(1) +1 NULL +# +# Impossible HAVING +# Empty result is expected +# +EXPLAIN SELECT row_number() over(), sum(1) FROM t1 where a=1 having 1=0; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible HAVING +SELECT row_number() over(), sum(1) FROM t1 where a=1 having 1=0; +row_number() over() sum(1) +# +# const table has 1 row, no impossible where +# The expected result here is 1, 2 +# +EXPLAIN SELECT row_number() over(), sum(a) FROM t1 where a=2; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 Using temporary +SELECT row_number() over(), sum(a) FROM t1 where a=2; +row_number() over() sum(a) +1 2 +drop table t1; +# +# Impossible Where +# +create table t1(a int); +insert into t1 values (1); +# +# Expected result is NULL, 0, NULL +# +EXPLAIN SELECT MAX(a) OVER (), COUNT(a), abs(a) FROM t1 WHERE FALSE; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE +SELECT MAX(a) OVER (), COUNT(a), abs(a) FROM t1 WHERE FALSE; +MAX(a) OVER () COUNT(a) abs(a) +NULL 0 NULL +# +# Expected result is 1, 0, NULL +# +EXPLAIN +SELECT MAX(1) OVER (), COUNT(a), abs(a) FROM t1 WHERE FALSE; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE +SELECT MAX(1) OVER (), COUNT(a), abs(a) FROM t1 WHERE FALSE; +MAX(1) OVER () COUNT(a) abs(a) +1 0 NULL +drop table t1; +# # End of 10.2 tests # # |