error_simulation.test

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

-- source include/have_debug.inc

#
# Bug #28499: crash for grouping query when tmp_table_size is too small
#

DROP TABLE IF EXISTS t1;

CREATE TABLE t1 (
  a varchar(32) character set utf8 collate utf8_bin NOT NULL,
  b varchar(32) character set utf8 collate utf8_bin NOT NULL )
ENGINE=MyISAM DEFAULT CHARSET=utf8;

INSERT INTO t1 VALUES
  ('AAAAAAAAAA','AAAAAAAAAA'), ('AAAAAAAAAB','AAAAAAAAAB '),
  ('AAAAAAAAAB','AAAAAAAAAB'), ('AAAAAAAAAC','AAAAAAAAAC'),
  ('AAAAAAAAAD','AAAAAAAAAD'), ('AAAAAAAAAE','AAAAAAAAAE'),
  ('AAAAAAAAAF','AAAAAAAAAF'), ('AAAAAAAAAG','AAAAAAAAAG'),
  ('AAAAAAAAAH','AAAAAAAAAH'), ('AAAAAAAAAI','AAAAAAAAAI'),
  ('AAAAAAAAAJ','AAAAAAAAAJ'), ('AAAAAAAAAK','AAAAAAAAAK');

set tmp_table_size=1024;

--error ER_DUP_KEY
SELECT MAX(a) FROM t1 GROUP BY a,b;

set tmp_table_size=default;

DROP TABLE t1;