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Merge paul@work.mysql.com:/home/bk/mysql-4.0

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into teton.kitebird.com:/home/paul/mysql-4.0
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paul@teton.kitebird.com 2002-06-29 14:21:51 -05:00
commit e5b02fbe6e
1 changed files with 19 additions and 12 deletions
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31
Docs/manual.texi
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@ -49582,34 +49582,41 @@ Added binary XOR.
The one that with a query like :
select 11 ^ 3;
@example
SELECT 11 ^ 3;
@end example
returns 8.
Based on the code originated by Hartmut Holzgraefe <hartmut@six.de>.
Based on code contributed by Hartmut Holzgraefe @email{hartmut@@six.de}.
@item
Added logical XOR.
The one that with a query like:
select 1 XOR 1;
@example
SELECT 1 XOR 1;
@end example
returns 0;
Based on the code originated by Hartmut Holzgraefe <hartmut@six.de>.
Based on code contributed by Hartmut Holzgraefe @email{hartmut@@six.de}.
@item
Add function CHEDK_LOCK("lock_name").
This function checks if the lock of the certain name is available or not.
This function does not attempt to take a look.
Add function @code{CHECK_LOCK("lock_name")}.
This function returns a value indicating whether or not the lock with the
given name is available.
It does not attempt to acquire a lock.
It is used like this:
SELECT CHECK_LOCK("some_lock");
@example
SELECT CHECK_LOCK("some_lock");
@end example
it will return 1 if the lock is held by a process (including by
itself), 0 if it is currently not held by anyone and NULL on
errors.
Based on the code originated by Hartmut Holzgraefe <hartmut@six.de>.
@code{CHECK_LOCK()} returns 1 if the lock is available,
0 if the lock is held by any process (including the current process),
and @code{NULL} if an error occurs.
Based on code contributed by Hartmut Holzgraefe @email{hartmut@@six.de}.
@item
Removed @code{mysql_ssl_clear()}, as this was not needed.
@item