Reid Thompson <reid.thomp...@ateb.com> writes:
> My assumption is that converting varchar(n) to text would still force a
> re-write of the table? i.e. currently there's no officially 'safe' way
> to convert the field type w/o incurring a table re-write.
If you do it through ALTER TABLE, yes. Since text and varchar are the
same thing on disk, you could get away with just manually updating the
pg_attribute row for the column ... but I'd counsel practicing on a
scratch database ;-)
regards, tom lane
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