Oracle 5.0 Reference Manual page 500

This variable was used in MySQL 4.0 to turn on some 4.1 behaviors, and is retained for backward
compatibility. In MySQL 5.0, its value is always OFF.
• [480]
old_passwords
Variable Name
Variable Scope
Dynamic Variable
This variable determines the type of password hashing performed by the
function and statements such as
or not to use "old" native MySQL password hashing. A value of 0 (or OFF) causes passwords to be
encrypted using the format available from MySQL 4.1 on. A value of 1 (or ON) causes password
encryption to use the older pre-4.1 format.
If old_passwords=1,
OLD_PASSWORD('str')
For information about hashing formats, see
• [480]
one_shot
This is not a variable, but it can be used when setting some variables. It is described in
Section 13.7.4, "SET
•
open_files_limit
Command-Line Format
Option-File Format
Option Sets Variable
Variable Name
Variable Scope
Dynamic Variable
The number of files that the operating system permits
permitted by the system and might be different from the value you gave using the
[417] option to
limit
change the number of open files.
•
optimizer_prune_level
Version Introduced
Command-Line Format
Option-File Format
Option Sets Variable
Variable Name
Variable Scope
Dynamic Variable
Server System Variables
old_passwords
Global, Session
Yes
CREATE USER
PASSWORD('str')
[956].
Syntax".
[480]
--open-files-limit=#
open-files-limit
Yes,
open_files_limit
open_files_limit
Global
No
or mysqld_safe. The value is 0 on systems where MySQL cannot
mysqld
[480]
5.0.1
--optimizer_prune_level[=#]
optimizer_prune_level
Yes,
optimizer_prune_level
optimizer_prune_level
Global, Session
Yes
Permitted Values
Type
boolean
Default
1
480
and PASSWORD. The value determines whether
SET
[956] returns the same value as
Section 6.1.2.4, "Password Hashing in
[480]
to open. This is the real value
mysqld
[480]
[956]
PASSWORD()
MySQL".
--open-files-