Single Quote in tsquery

Hi all,

I am trying to perform a full text search for the word 'ksan (which starts with a quote). After much frustration and
syntaxerrors I stumbled upon the following statement which seems to work:
 

select *
from items
where to_tsvector(name) @@ to_tsquery(E'[\']ksan')

I would like to know if this is actually the correct way to search for this word? The use of brackets isn't documented
anywherethat I can find so I'm not sure if it is even doing what I want it to do or if the correct result is just a
coincidence.

Thanks,
Ryan