# # Bug 35333 "If a Federated table can't connect to the remote hose, can't retrieve metadata" # # Queries such as SHOW TABLE STATUS and SELECT * FROM INFORMATION_SCHEMA.TABLES fail # when encountering a federated table that cannot connect to its remote table. # # The fix is to store the error text in the TABLE COMMENTS column of I_S.TABLES, clear # the remote connection error and push a warning instead. This allows the SELECT operation # to complete while still indicating a problem. This fix applies to any non-fatal system # error that occurs during a query against I_S.TABLES.de connect master,127.0.0.1,root,,test,$MASTER_MYPORT,; connect slave,127.0.0.1,root,,test,$SLAVE_MYPORT,; connection master; CREATE DATABASE federated; connection slave; CREATE DATABASE federated; DROP TABLE IF EXISTS federated.t0; # # Create a MyISAM table then corrupt the file # CREATE TABLE t1 (c1 int) ENGINE=MYISAM; # # Corrupt the MyISAM table by deleting the base file # # # Trigger a MyISAM system error during an INFORMATION_SCHEMA.TABLES query # SELECT TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE, ENGINE, ROW_FORMAT, TABLE_ROWS, DATA_LENGTH, TABLE_COMMENT FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 't1'; TABLE_SCHEMA TABLE_NAME TABLE_TYPE ENGINE ROW_FORMAT TABLE_ROWS DATA_LENGTH TABLE_COMMENT test t1 BASE TABLE NULL NULL NULL NULL Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory") Warnings: Warning 1017 Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory") DROP TABLE t1; Warnings: Warning 1017 Can't find file: './test/t1.MYI' (errno: 2 "No such file or directory") # # Cleanup # connection master; DROP TABLE IF EXISTS federated.t1; DROP DATABASE IF EXISTS federated; connection slave; DROP TABLE IF EXISTS federated.t1; DROP DATABASE IF EXISTS federated;