-- source include/have_innodb.inc

--echo #
--echo # Bug#21704: Renaming column does not update FK definition.
--echo #

--echo
--echo # Test that it's not possible to rename columns participating in a
--echo # foreign key (either in the referencing or referenced table).
--echo

--disable_warnings
DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
DROP TABLE IF EXISTS t3;
--enable_warnings

CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ROW_FORMAT=COMPACT ENGINE=INNODB;

CREATE TABLE t2 (a INT PRIMARY KEY, b INT,
                 CONSTRAINT fk1 FOREIGN KEY (a) REFERENCES t1(a))
ROW_FORMAT=COMPACT ENGINE=INNODB;

CREATE TABLE t3 (a INT PRIMARY KEY, b INT, KEY(b), C INT,
  CONSTRAINT fk2 FOREIGN KEY (b) REFERENCES t3 (a))
ROW_FORMAT=COMPACT ENGINE=INNODB;

INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
INSERT INTO t3 VALUES (1,1,1),(2,2,2),(3,3,3);

--echo
--echo # Test renaming the column in the referenced table.
--echo

# mysqltest first does replace_regex, then replace_result
--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
# Embedded server doesn't chdir to data directory
--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
--error ER_ERROR_ON_RENAME
ALTER TABLE t1 CHANGE a c INT;

--echo # Ensure that online column rename works.

--enable_info
ALTER TABLE t1 CHANGE b c INT;
--disable_info

--echo
--echo # Test renaming the column in the referencing table
--echo

# mysqltest first does replace_regex, then replace_result
--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
# Embedded server doesn't chdir to data directory
--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
--error ER_ERROR_ON_RENAME
ALTER TABLE t2 CHANGE a c INT;

--echo # Ensure that online column rename works.

--enable_info
ALTER TABLE t2 CHANGE b c INT;
--disable_info

--echo
--echo # Test with self-referential constraints
--echo

# mysqltest first does replace_regex, then replace_result
--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
# Embedded server doesn't chdir to data directory
--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
--error ER_ERROR_ON_RENAME
ALTER TABLE t3 CHANGE a d INT;

# mysqltest first does replace_regex, then replace_result
--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
# Embedded server doesn't chdir to data directory
--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
--error ER_ERROR_ON_RENAME
ALTER TABLE t3 CHANGE b d INT;

--echo # Ensure that online column rename works.

--enable_info
ALTER TABLE t3 CHANGE c d INT;
--disable_info

--echo
--echo # Cleanup.
--echo

DROP TABLE t3;
DROP TABLE t2;
DROP TABLE t1;
