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# # Bug#13723054 CRASH WITH MIN/MAX AFTER QUICK_GROUP_MIN_MAX_SELECT::NEXT_MIN # CREATE TABLE t1(a BLOB, b VARCHAR(255) CHARSET LATIN1, c INT, KEY(b, c, a(765))) ENGINE=INNODB; INSERT INTO t1(a, b, c) VALUES ('', 'a', 0), ('', 'a', null), ('', 'a', 0), ('', 'a', null), ('', 'a', 0); ANALYZE TABLE t1; SELECT MIN(c) FROM t1 GROUP BY b; MIN(c) 0 EXPLAIN SELECT MIN(c) FROM t1 GROUP BY b; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 range b b 263 NULL 3 Using index for group-by DROP TABLE t1; End of 5.6 tests