DROP TABLE IF EXISTS t1; CREATE TABLE t1 (word CHAR(20) NOT NULL PRIMARY KEY) ENGINE=NDB; LOAD DATA INFILE '../../../std_data/words.dat' INTO TABLE t1 ; ERROR 23000: Can't write; duplicate key in table 't1' DROP TABLE t1; CREATE TABLE t1 (word CHAR(20) NOT NULL) ENGINE=NDB; LOAD DATA INFILE '../../../std_data/words.dat' INTO TABLE t1 ; SELECT * FROM t1 ORDER BY word; word Aarhus Aarhus Aaron Aaron Ababa Ababa aback aback abaft abaft abandon abandon abandoned abandoned abandoning abandoning abandonment abandonment abandons abandons abase abased abasement abasements abases abash abashed abashes abashing abasing abate abated abatement abatements abater abates abating Abba abbe abbey abbeys abbot abbots Abbott abbreviate abbreviated abbreviates abbreviating abbreviation abbreviations Abby abdomen abdomens abdominal abduct abducted abduction abductions abductor abductors abducts Abe abed Abel Abelian Abelson Aberdeen Abernathy aberrant aberration DROP TABLE t1; Test single statement load from MyISAM table with and without ndb_use_transactions (Bug#43236) ndb_use_transactions = 0 should allow bulk inserts to succeed by automatically splitting into smaller transactions. CREATE TABLE t1 (a int) engine=MyIsam; show tables; Tables_in_test t1 CREATE PROCEDURE bulkinsert (in num int) BEGIN set @total= num; repeat insert into t1 values (@total); set @total= @total -1; until @total = 0 end repeat; end % Insert 15000 rows which should exceed default number of concurrent operations (include/default_ndbd.cnf) when trying to move over to ndb. CALL bulkinsert(15000); show tables; Tables_in_test t1 SELECT COUNT(*) FROM t1; COUNT(*) 15000 SET ndb_use_transactions= 1; CREATE TABLE t2 (a int) engine=Ndb; Will fail with too many concurrent operations error INSERT INTO t2 SELECT * FROM t1; ERROR HY000: Got temporary error 233 'Out of operation records in transaction coordinator (increase MaxNoOfConcurrentOperations)' from NDBCLUSTER SELECT COUNT(*) FROM t2; COUNT(*) 0 SET ndb_use_transactions= 0; Should pass as insert is split into multiple transactions INSERT INTO t2 SELECT * FROM t1; SELECT COUNT(*) FROM t2; COUNT(*) 15000 DROP PROCEDURE bulkinsert; DROP TABLE t2; Now check bulk insert using create .. as select. SHOW VARIABLES LIKE 'storage_engine'; Variable_name Value storage_engine MyISAM SET default_storage_engine="ndb"; CREATE TABLE t2 AS SELECT * FROM t1; SELECT COUNT(*) FROM t2; COUNT(*) 15000 DROP TABLE t2; SET default_storage_engine="MyIsam"; Now check Alter table to Ndb ALTER TABLE t1 ENGINE= Ndb; SELECT COUNT(*) FROM t1; COUNT(*) 15000 Now check Alter table within Ndb ALTER TABLE t1 ADD COLUMN extra int default 6; SELECT COUNT(*) FROM t1; COUNT(*) 15000 DROP TABLE t1;