Alterações na distribuição 3.22.12

Fixed problem when using DATE_ADD() and DATE_SUB() in a WHERE clause.

• You can now set the password for a user with the GRANT ... TO user IDENTIFIED BY 'password' syntax.
• Fixed bug in GRANT checking with SELECT on many tables.
• Added missing file mysql_fix_privilege_tables to the RPM distribution. This is not run by default because it relies on the client package.
• Added option SQL_SMALL_RESULT to SELECT to force use of fast temporary tables when you know that the result set will be small.
• Allow use of negative real numbers without a decimal point.
• Day number is now adjusted to maximum days in month if the resulting month after DATE_ADD/DATE_SUB() doesn't have enough days.
• Fix that GRANT compares columns in case-insensitive fashion.
• Fixed a bug in sql_list.h that made ALTER TABLE dump core in some contexts.
• The hostname in user@hostname can now include '.' and '-' without quotes in the context of the GRANT, REVOKE and SET PASSWORD FOR ... statements.
• Fix for isamchk for tables which need big temporary files.

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