-- source include/have_ndb.inc CREATE TABLE t_ndb(c1 INT NOT NULL PRIMARY KEY, c2 INT NOT NULL, c3 char(20), KEY c3_idx(c3)) ENGINE=ndbcluster; INSERT INTO t_ndb VALUES (1,1, '9412'), (2,2, '9413'); CREATE TABLE t_innodb(c1 INT NOT NULL PRIMARY KEY, c2 INT NOT NULL, c3 char(20), KEY c3_idx(c3))ENGINE=INNODB; INSERT INTO t_innodb VALUES (1, 1, 'a'), (2,2,'a'), (3,3,'a'); ANALYZE TABLE t_innodb; #Uses stats.records in opt_sum_query() let query1= SELECT COUNT(*) FROM t_ndb; #Uses ha_ndbcluster::records() let query2= SELECT COUNT(*) FROM t_ndb, t_innodb; --replace_column 10 # 11 # eval EXPLAIN $query1; --replace_column 10 # 11 # eval EXPLAIN $query2; eval $query1; eval $query2; DROP TABLE t_ndb, t_innodb;