# ticket 895 is a query optimization problem with the primary key --source include/have_tokudb.inc SET STORAGE_ENGINE = 'tokudb'; --disable_warnings DROP TABLE IF EXISTS t; --enable_warnings CREATE TABLE t (r INT, s INT, t BIGINT, PRIMARY KEY (r, s)); INSERT INTO t VALUES (1,2,3),(4,5,6); # ignore rows column --replace_column 9 NULL; EXPLAIN SELECT * FROM t WHERE r > 0; CREATE INDEX it on t(t); # ignore rows column --replace_column 9 NULL; EXPLAIN SELECT * FROM t WHERE r > 0; # Final cleanup. DROP TABLE t;