Обсуждение: max length of varchar returned from a function

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max length of varchar returned from a function

От
roypgsqlphp@xemaps.com
Дата:
Can anyone tell me what the maximum length of a varchar returned from a plpgsql function is?

Roy.



Re: max length of varchar returned from a function

От
Andrew McMillan
Дата:
On Thu, 2001-09-27 at 10:09, roypgsqlphp@xemaps.com wrote:
> Can anyone tell me what the maximum length of a varchar returned from a plpgsql function is?
>
It depends on your version of PostgreSQL, but it should be of the order
of 100's of MB with current versions.

Using LZTEXT type with 7.0 I was retrieving fields up to around 100-200k
(depending on compressibility), but 7.1 implements automatic
offloading/compressing of large fields.

I don't believe there should be current limitations in the
implementation of pl/pgsql which would impose lower limits on these
things than are imposed by the database field types.  Someone will no
doubt correct me if I am wrong :-)

Regards,
                        Andrew.
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