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			
CHARACTER_SET_NAME	varchar(32)	NO			
ID	bigint(11)	NO		0	
IS_DEFAULT	varchar(3)	NO			
IS_COMPILED	varchar(3)	NO			
SORTLEN	bigint(3)	NO		0	
SHOW CREATE TABLE information_schema.COLLATIONS;
Table	Create Table
COLLATIONS	CREATE TEMPORARY TABLE `COLLATIONS` (
  `COLLATION_NAME` varchar(32) NOT NULL DEFAULT '',
  `CHARACTER_SET_NAME` varchar(32) NOT NULL DEFAULT '',
  `ID` bigint(11) NOT NULL DEFAULT '0',
  `IS_DEFAULT` varchar(3) NOT NULL DEFAULT '',
  `IS_COMPILED` varchar(3) NOT NULL DEFAULT '',
  `SORTLEN` bigint(3) NOT NULL DEFAULT '0'
) ENGINE=MEMORY DEFAULT CHARSET=utf8
SHOW COLUMNS FROM information_schema.COLLATIONS;
Field	Type	Null	Key	Default	Extra
COLLATION_NAME	varchar(32)	NO			
CHARACTER_SET_NAME	varchar(32)	NO			
ID	bigint(11)	NO		0	
IS_DEFAULT	varchar(3)	NO			
IS_COMPILED	varchar(3)	NO			
SORTLEN	bigint(3)	NO		0	
# 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';
ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
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;