varchar allows you to define an explicit length of the field, text does not.
varchar with a length specified (varchar(n)) is sql92 compliant while
varchar() and text are pgsql extensions.
On 2010-07-21 08:58:54AM -0700, Ben Chobot wrote:
> Is there any difference between "text" and "varchar" data types? (Not varchar(n), just varchar.) I can't see a
differentfrom the manual page, but I'm wondering about index usage or something similarly subtle.
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