Jerry Schwartz wrote:
> I'm using MySQL Linux version 4.1.21 standard.
> I have a table with fields of a variety of types, including varchar(255) and
> text (which might matter). When I do
> SELECT MAX(LENGTH(x)) FROM tx;
> where x is a varchar(255), I get back 266 as the result of the query!
> This isn't listed as one of the silent conversions - varchar(256) would be
> converted to text, but not varchar(255). What's going on?
Perhaps you are using multi-byte characters? LENGTH() returns a length
in bytes. CHAR_LENGTH() returns the length in characters.