Обсуждение: validating incoming string length...

I'm trying to write a pl/pgsql trigger to validate incoming data to an existing database. One of the fields is defined
ascharacter varying (255). Is there any way of catching over-length data on inserts and silently dropping them? At the
moment,I'm getting the error 'ERROR:  value too long for type character varying(255)' no matter what I try. 

And yes, I inherited this!

Cheers,

Steve

Steve Holdoway <steve@firetrust.com> writes:

> I'm trying to write a pl/pgsql trigger to validate incoming data to
> an existing database. One of the fields is defined as character
> varying (255). Is there any way of catching over-length data on
> inserts and silently dropping them? At the moment, I'm getting the
> error 'ERROR: value too long for type character varying(255)' no
> matter what I try.

Sure.  Change the columns data type to text where you'll have no size
restriction and then let your trigger gun those illegal entries.

HTH

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