SHOW TABLES FROM information_schema LIKE 'COLLATIONS'; Tables_in_information_schema (COLLATIONS) COLLATIONS ####################################################################### # Testcase 3.2.1.1: INFORMATION_SCHEMA tables can be queried via SELECT ####################################################################### DROP VIEW IF EXISTS test.v1; DROP PROCEDURE IF EXISTS test.p1; DROP FUNCTION IF EXISTS test.f1; CREATE VIEW test.v1 AS SELECT * FROM information_schema.COLLATIONS; CREATE PROCEDURE test.p1() SELECT * FROM information_schema.COLLATIONS; CREATE FUNCTION test.f1() returns BIGINT BEGIN DECLARE counter BIGINT DEFAULT NULL; SELECT COUNT(*) INTO counter FROM information_schema.COLLATIONS; RETURN counter; END// # Attention: The printing of the next result sets is disabled. SELECT * FROM information_schema.COLLATIONS; SELECT * FROM test.v1; CALL test.p1; SELECT test.f1(); DROP VIEW test.v1; DROP PROCEDURE test.p1; DROP FUNCTION test.f1; ######################################################################### # Testcase 3.2.3.1: INFORMATION_SCHEMA.COLLATIONS layout ######################################################################### DESCRIBE information_schema.COLLATIONS; Field Type Null Key Default Extra COLLATION_NAME varchar(32) NO NULL CHARACTER_SET_NAME varchar(32) NO NULL ID bigint(11) NO NULL IS_DEFAULT varchar(3) NO NULL IS_COMPILED varchar(3) NO NULL SORTLEN bigint(3) NO NULL SHOW CREATE TABLE information_schema.COLLATIONS; Table Create Table COLLATIONS CREATE TEMPORARY TABLE `COLLATIONS` ( `COLLATION_NAME` varchar(32) NOT NULL, `CHARACTER_SET_NAME` varchar(32) NOT NULL, `ID` bigint(11) NOT NULL, `IS_DEFAULT` varchar(3) NOT NULL, `IS_COMPILED` varchar(3) NOT NULL, `SORTLEN` bigint(3) NOT NULL ) ENGINE=MEMORY DEFAULT CHARSET=utf8 SHOW COLUMNS FROM information_schema.COLLATIONS; Field Type Null Key Default Extra COLLATION_NAME varchar(32) NO NULL CHARACTER_SET_NAME varchar(32) NO NULL ID bigint(11) NO NULL IS_DEFAULT varchar(3) NO NULL IS_COMPILED varchar(3) NO NULL SORTLEN bigint(3) NO NULL # Testcases 3.2.3.2 and 3.2.3.3 are checked in suite/funcs_1/t/charset_collation*.test ######################################################################## # Testcases 3.2.1.3-3.2.1.5 + 3.2.1.8-3.2.1.12: INSERT/UPDATE/DELETE and # DDL on INFORMATION_SCHEMA tables are not supported ######################################################################## DROP DATABASE IF EXISTS db_datadict; CREATE DATABASE db_datadict; INSERT INTO information_schema.collations SELECT * FROM information_schema.collations; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' INSERT INTO information_schema.collations (collation_name,character_set_name,id,is_default,is_compiled,sortlen) VALUES ( 'cp1251_bin', 'cp1251',50, '', '',0); ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' UPDATE information_schema.collations SET description = 'just updated'; Got one of the listed errors DELETE FROM information_schema.collations WHERE table_name = 't1'; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' TRUNCATE information_schema.collations; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' CREATE INDEX my_idx ON information_schema.collations(character_set_name); ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' ALTER TABLE information_schema.collations DROP PRIMARY KEY; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' ALTER TABLE information_schema.collations ADD f1 INT; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' ALTER TABLE information_schema.collations ENABLE KEYS; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' DROP TABLE information_schema.collations; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' ALTER TABLE information_schema.collations RENAME db_datadict.collations; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' ALTER TABLE information_schema.collations RENAME information_schema.xcollations; ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema' DROP DATABASE db_datadict;