DROP TABLE IF EXISTS t1; CREATE TABLE t1 (i1 INT, PRIMARY KEY (i1)) ENGINE = XENGINE; SET GLOBAL XENGINE_FORCE_FLUSH_MEMTABLE_NOW=1; set session debug= "+d,myx_simulate_negative_stats"; SELECT CASE WHEN DATA_LENGTH < 1024 * 1024 THEN 'true' ELSE 'false' END FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 't1'; CASE WHEN DATA_LENGTH < 1024 * 1024 THEN 'true' ELSE 'false' END false set session debug= "-d,myx_simulate_negative_stats"; DROP TABLE t1;