MySQL Bugs: #3473: blank host in tables_priv or collumns

Bug #3473	blank host in tables_priv or collumns_priv
Submitted:	14 Apr 2004 14:14	Modified:	28 Apr 2004 13:33
Reporter:	Brian Nelson	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server	Severity:	S3 (Non-critical)
Version:	4.0.18	OS:	Solaris (Solaris 9 sparc)
Assigned to:	Michael Widenius	CPU Architecture:	Any

Description:
Trying to use a blank host value for table-specific or collumn-specific privileges does not work as expected. Using a blank value results in non-working privilege. Using a '%' for the host value does work as expected. These should be equivalant values, according to secion 5.4.6 of the documentation.

How to repeat:
Create a user with only 'usage' privilege on a database. Then assign a table or collumn-specific privilege to the user, with a blank host value in tables_priv or collumns_priv. The user will not have the expected privilege.

Change the blank value to a '%' and the privilege will work as expected.

Please note that the user in question has a blank host value in the 'user' table as well (ie for the 'consult the host table' behavior).

FYI This happens on v 3.23.58 as well

Verified with 4.0.18 and 4.1.2:

GRANT ALL ON test.t1 TO testuser@'';
SHOW GRANTS FOR testuser@'';
FLUSH PRIVILEGES;
SHOW GRANTS FOR testuser@'';

Thank you for your bug report. This issue has been committed to our
source repository of that product and will be incorporated into the
next release.

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available version, including the bugfix, yourself. More information 
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Additional info:

The fix will be in 4.0.19 and 4.1.2