mariadb/mysql-test/main/session_user.test
2025-04-29 13:53:16 +10:00

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# MDEV-30908 - Test SESSION_USER() function
#
# Check that SESSION_USER() returns the right user and host matching the
# content of`mysql.user` table for the user executing the stored procedure.
-- source include/not_embedded.inc
--echo # Create a stored procedure which calls the different functions to retrieve the user
CREATE FUNCTION test.func_session_user() RETURNS CHAR(80) SQL SECURITY DEFINER RETURN CONCAT(USER(), '; ', CURRENT_USER(), '; ', SESSION_USER());
--echo # Create a view which calls the different functions to retrieve the user
CREATE SQL SECURITY DEFINER VIEW test.view_session_user AS SELECT USER(), CURRENT_USER(), SESSION_USER();
--echo # Create test_user
CREATE USER 'test_user'@'%';
GRANT EXECUTE, CREATE, DROP, SELECT ON test.* TO 'test_user'@'%';
--echo # Connect as test_user
connect (test_user_con,localhost,test_user,,);
--echo # Check the function called directly
SELECT USER(), CURRENT_USER(), SESSION_USER();
--echo # Check the function inside of a stored procedure
SELECT test.func_session_user();
--echo # Check the function inside of a view
SELECT * FROM test.view_session_user;
--echo # Check SESSION_USER is allowed in virtual columns
CREATE OR REPLACE TABLE t1 (a int, b varchar(100) GENERATED ALWAYS AS (SESSION_USER()));
--echo # Check SESSION_USER is not allowed for indexed virtual columns
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
CREATE OR REPLACE TABLE t1 (a int, b varchar(100) GENERATED ALWAYS AS (SESSION_USER()), INDEX idx (b));
--echo # Check SESSION_USER is not allowed in virtual columns when CHECK constraints are provided
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
CREATE OR REPLACE TABLE t1 (a int, b varchar(100) GENERATED ALWAYS AS (SESSION_USER()) CHECK (b <> ''));
--echo # Check SESSION_USER is not allowed for stored virtual columns
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
CREATE OR REPLACE TABLE t1 (a int, b varchar(100) GENERATED ALWAYS AS (SESSION_USER()) STORED);
--echo # Check SESSION_USER is allowed as default
CREATE OR REPLACE TABLE t1 (a int, b varchar(100) DEFAULT (SESSION_USER()));
--echo # Test old mode SESSION_USER_IS_USER behaves properly
SELECT @@OLD_MODE, @@GLOBAL.OLD_MODE;
SELECT USER(), SESSION_USER();
SET @@OLD_MODE = CONCAT(@@OLD_MODE, ',SESSION_USER_IS_USER');
SELECT @@OLD_MODE, @@GLOBAL.OLD_MODE;
SELECT USER(), SESSION_USER();
--echo # Cleanup
--connection default
DROP USER 'test_user'@'%';
DROP FUNCTION test.func_session_user;
DROP VIEW test.view_session_user;
DROP TABLE test.t1;