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This is covered in mysql-test/t/variables.test. There is no sense to test this for every individual variables. This is to reduce the coming soon patch for ROW-type routine variables, which will change the error from ER_PARSE_ERROR to a new error "unknown structured variable".
91 lines
4.1 KiB
Plaintext
91 lines
4.1 KiB
Plaintext
SET @start_session_value = @@session.default_master_connection;
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SELECT @start_session_value;
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@start_session_value
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SET @@session.default_master_connection = 'bar';
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SET @@session.default_master_connection = DEFAULT;
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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SET @@session.default_master_connection = @start_session_value;
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SELECT @@session.default_master_connection = '';
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@@session.default_master_connection = ''
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1
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SET @@global.default_master_connection = 'master1';
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ERROR HY000: Variable 'default_master_connection' is a SESSION variable and can't be used with SET GLOBAL
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SELECT @@global.default_master_connection;
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ERROR HY000: Variable 'default_master_connection' is a SESSION variable
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SET @@session.default_master_connection = 'master1';
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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master1
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SET @@session.default_master_connection = '';
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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SET @@session.default_master_connection = '1234-5678';
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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1234-5678
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SET @@session.default_master_connection = '@!*/"';
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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@!*/"
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SET @@session.default_master_connection = REPEAT('a',191);
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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SET @@session.default_master_connection = master2;
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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master2
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SET @@session.default_master_connection = 1;
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ERROR 42000: Incorrect argument type to variable 'default_master_connection'
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SET @@session.default_master_connection = 65530.30;
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ERROR 42000: Incorrect argument type to variable 'default_master_connection'
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SET @@session.default_master_connection = FALSE;
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ERROR 42000: Incorrect argument type to variable 'default_master_connection'
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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master2
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SET @@session.default_master_connection = REPEAT('a',192);
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ERROR 42000: Variable 'default_master_connection' can't be set to the value of 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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master2
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SET @@session.default_master_connection = NULL;
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ERROR 42000: Variable 'default_master_connection' can't be set to the value of 'NULL'
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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master2
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SELECT @@global.default_master_connection = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='default_master_connection';
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ERROR HY000: Variable 'default_master_connection' is a SESSION variable
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SELECT @@session.default_master_connection = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.SESSION_VARIABLES
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WHERE VARIABLE_NAME='default_master_connection';
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@@session.default_master_connection = VARIABLE_VALUE
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1
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SET @@default_master_connection = 'foo';
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SELECT @@default_master_connection = @@local.default_master_connection;
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@@default_master_connection = @@local.default_master_connection
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1
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SELECT @@local.default_master_connection = @@session.default_master_connection;
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@@local.default_master_connection = @@session.default_master_connection
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1
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SET default_master_connection = 'foo';
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SELECT @@default_master_connection;
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@@default_master_connection
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foo
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SELECT local.default_master_connection;
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ERROR 42S02: Unknown table 'local' in field list
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SELECT session.default_master_connection;
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ERROR 42S02: Unknown table 'session' in field list
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SELECT default_master_connection = @@session.default_master_connection;
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ERROR 42S22: Unknown column 'default_master_connection' in 'field list'
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SET @@session.default_master_connection = @start_session_value;
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SELECT @@session.default_master_connection;
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@@session.default_master_connection
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