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MDEV-5999 MySQL Bug#12766319 - 61865: RENAME USER DOES NOT WORK CORRECTLY - REQUIRES FLUSH PRIVILEGES

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use update_hostname() to update the hostname.
test case comes from

  commit 0abdeed1d6d
  Author: gopal.shankar@oracle.com <>
  Date:   Thu Mar 29 00:20:54 2012 +0530

    Bug#12766319 - 61865: RENAME USER DOES NOT WORK CORRECTLY -
                          REQUIRES FLUSH PRIVILEGES
This commit is contained in:
Sergei Golubchik
2017-02-23 12:48:15 +01:00
parent 494a94158a
commit 199f88cb9c
3 changed files with 68 additions and 2 deletions
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26
mysql-test/r/grant.result
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@@ -2560,3 +2560,29 @@ Grants for mysqltest_u1@%
GRANT USAGE ON *.* TO 'mysqltest_u1'@'%'
drop database mysqltest_db1;
drop user mysqltest_u1;
#
# Bug#12766319 - 61865: RENAME USER DOES NOT WORK CORRECTLY -
# REQUIRES FLUSH PRIVILEGES
#
CREATE USER foo@'127.0.0.1';
GRANT ALL ON *.* TO foo@'127.0.0.1';
# First attempt, should connect successfully
SELECT user(), current_user();
user() current_user()
foo@localhost foo@127.0.0.1
# Rename the user
RENAME USER foo@'127.0.0.1' to foo@'127.0.0.0/255.0.0.0';
# Second attempt, should connect successfully as its valid mask
# This was failing without fix
SELECT user(), current_user();
user() current_user()
foo@localhost foo@127.0.0.0/255.0.0.0
# Rename the user back to original
RENAME USER foo@'127.0.0.0/255.0.0.0' to foo@'127.0.0.1';
# Third attempt, should connect successfully
SELECT user(), current_user();
user() current_user()
foo@localhost foo@127.0.0.1
# Clean-up
DROP USER foo@'127.0.0.1';
# End of Bug#12766319