What to use to store in postgresql a string with no specific upper limit?

On the postgresql manual page: If you desire to store long strings with no specific upper limit, use text or character varying without开发者_如何学JAVA a length specifier.

My question is: when to use which ? Or it doesn't matter ?

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They are the same. Use what you prefer :)

Although text is not SQL standard I prefer it because is sorter.