For a MERGE table, DELETE FROM merge_table used without a WHERE clause no longer clears the mapping for the table by emptying the .MRG file. Instead, it deletes records from the mapped tables.

Don't give warning for a statement that is only a comment; this is needed for mysqldump --disable-keys to work.

Fixed unlikely caching bug when doing a join without keys. In this case, the last used field for a table always returned NULL.

Added options to make LOAD DATA LOCAL INFILE more secure.

MySQL binary release 3.23.48 for Linux contained a new glibc library, which has serious problems under high load and Red Hat 7.2. The 3.23.49 binary release doesn't have this problem.

Fixed shutdown problem on NT.