UDF Programming Problem

[Ariz Jacinto]

i've created a simple UDF (for testing) that returns a string.
my problem is that the string that it returns, contain some
of the characters of  the  longest string in the column.
example:

Table
+-----------------+
|        name       |
+-----------------+
| hello world   |
| goodbye        |
+-----------------+
mysql> select echo(name) from table;

   hello world
   goodbyerld        <---- ???


*How do i fix this???









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