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Diffstat (limited to 'mysql-test/r/group_min_max.result')
| -rw-r--r-- | mysql-test/r/group_min_max.result | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/mysql-test/r/group_min_max.result b/mysql-test/r/group_min_max.result index 662cc5be034..01f27a498ef 100644 --- a/mysql-test/r/group_min_max.result +++ b/mysql-test/r/group_min_max.result @@ -2524,4 +2524,247 @@ SELECT a, MAX(b) FROM t WHERE b GROUP BY a; a MAX(b) 2 1 DROP TABLE t; +CREATE TABLE t1(a INT NOT NULL, b INT NOT NULL, KEY (b)); +INSERT INTO t1 VALUES(1,1),(2,1); +ANALYZE TABLE t1; +Table Op Msg_type Msg_text +test.t1 analyze status OK +SELECT 1 AS c, b FROM t1 WHERE b IN (1,2) GROUP BY c, b; +c b +1 1 +SELECT a FROM t1 WHERE b=1; +a +1 +2 +DROP TABLE t1; +# +# Bug#47762: Incorrect result from MIN() when WHERE tests NOT NULL column +# for NULL +# +## Test for NULLs allowed +CREATE TABLE t1 ( a INT, KEY (a) ); +INSERT INTO t1 VALUES (1), (2), (3); +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a = NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a = NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a <> NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a <> NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a > NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a > NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a < NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a < NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a <=> NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x No matching min/max row +SELECT MIN( a ) FROM t1 WHERE a <=> NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND 10; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND 10; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN 10 AND NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN 10 AND NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a = (SELECT a FROM t1 WHERE a < 0); +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +x x x x x x x x x Using where; Using index +SELECT MIN( a ) FROM t1 WHERE a = (SELECT a FROM t1 WHERE a < 0); +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a IS NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x No matching min/max row +SELECT MIN( a ) FROM t1 WHERE a IS NULL; +MIN( a ) +NULL +INSERT INTO t1 VALUES (NULL), (NULL); +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a = NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a = NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a <> NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a <> NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a > NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a > NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a < NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a < NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a <=> NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Select tables optimized away +SELECT MIN( a ) FROM t1 WHERE a <=> NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND 10; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND 10; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN 10 AND NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN 10 AND NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a = (SELECT a FROM t1 WHERE a < 0); +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +x x x x x x x x x Using where; Using index +SELECT MIN( a ) FROM t1 WHERE a = (SELECT a FROM t1 WHERE a < 0); +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a IS NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Select tables optimized away +SELECT MIN( a ) FROM t1 WHERE a IS NULL; +MIN( a ) +NULL +DROP TABLE t1; +## Test for NOT NULLs +CREATE TABLE t1 ( a INT NOT NULL PRIMARY KEY); +INSERT INTO t1 VALUES (1), (2), (3); +# +# NULL-safe operator test disabled for non-NULL indexed columns. +# +# See bugs +# +# - Bug#52173: Reading NULL value from non-NULL index gives +# wrong result in embedded server +# +# - Bug#52174: Sometimes wrong plan when reading a MAX value from +# non-NULL index +# +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a = NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a = NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a <> NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a <> NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a > NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a > NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a < NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a < NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND 10; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND 10; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN NULL AND NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a BETWEEN 10 AND NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +SELECT MIN( a ) FROM t1 WHERE a BETWEEN 10 AND NULL; +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a = (SELECT a FROM t1 WHERE a < 0); +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE noticed after reading const tables +x x x x x x x x x Using where; Using index +SELECT MIN( a ) FROM t1 WHERE a = (SELECT a FROM t1 WHERE a < 0); +MIN( a ) +NULL +EXPLAIN +SELECT MIN( a ) FROM t1 WHERE a IS NULL; +id select_type table type possible_keys key key_len ref rows Extra +x x x x x x x x x Impossible WHERE +SELECT MIN( a ) FROM t1 WHERE a IS NULL; +MIN( a ) +NULL +DROP TABLE t1; End of 5.1 tests |