1'#--------------------FN_DYNVARS_015_01-------------------------#' 2SET @global_collation_connection = @@global.collation_connection; 3SET @session_collation_connection = @@session.collation_connection; 4SET @@global.collation_connection = latin1_danish_ci; 5'connect (con1,localhost,root,,,,)' 6'connection con1' 7SELECT @@global.collation_connection; 8@@global.collation_connection 9latin1_danish_ci 10SELECT @@session.collation_connection; 11@@session.collation_connection 12latin1_danish_ci 13'#--------------------FN_DYNVARS_015_02-------------------------#' 14'connection default' 15DROP TABLE IF EXISTS t1; 16'----check if collation_connection update character_set_connection---' 17SET @@session.collation_connection = utf8_spanish_ci; 18SELECT @@collation_connection, @@character_set_database; 19@@collation_connection @@character_set_database 20utf8_spanish_ci latin1 21'---check if collation_connection works for literal string comparision--' 22SET @@session.collation_connection = latin1_swedish_ci; 23SELECT 'mysql'='MySql'; 24'mysql'='MySql' 251 26SELECT _latin2'mysql' COLLATE latin2_general_ci='MySql'; 27_latin2'mysql' COLLATE latin2_general_ci='MySql' 281 29SELECT _utf8'mysql'=_utf8'MySql' COLLATE utf8_unicode_ci; 30_utf8'mysql'=_utf8'MySql' COLLATE utf8_unicode_ci 311 32SET @@session.collation_connection = latin1_general_cs; 33SELECT 'mysql'='MySql'; 34'mysql'='MySql' 350 36SELECT _latin2'mysql'COLLATE latin2_general_ci='MySql'; 37_latin2'mysql'COLLATE latin2_general_ci='MySql' 381 39SELECT _utf8'mysql'COLLATE utf8_danish_ci=_utf8'MySql'COLLATE utf8_unicode_ci; 40ERROR HY000: Illegal mix of collations (utf8_danish_ci,EXPLICIT) and (utf8_unicode_ci,EXPLICIT) for operation '=' 41'---collation_connection does not effect comparision with column---' 42CREATE TABLE t1(a CHAR(20)CHARACTER SET latin1 COLLATE latin1_german2_ci); 43INSERT INTO t1 VALUES('M�ller'); 44SET @@session.collation_connection = latin2_hungarian_ci; 45SELECT * FROM t1 WHERE a='M�ller'; 46a 47M�ller 48SET @@session.collation_connection = latin1_general_cs; 49SELECT * FROM t1 WHERE a='m�ller'; 50a 51M�ller 52'check if string literal collation is used'; 53SELECT * FROM t1 WHERE a='m�ller' COLLATE latin1_general_cs; 54a 55SELECT * FROM t1 WHERE a='m�ller' COLLATE latin1_german1_ci; 56a 57M�ller 58DROP TABLE t1; 59SET @@global.collation_connection = @global_collation_connection; 60SET @@session.collation_connection = @session_collation_connection; 61