Horton

Re: Re-create dependent views on ALTER TABLE ALTER COLUMN ... TYPE?

David G. Johnston <david.g.johnston@gmail.com>

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From: David G Johnston <david.g.johnston@gmail.com>
To: pgsql-hackers@postgresql.org
Date: 2014-05-28T02:39:18Z
Lists: pgsql-hackers 
Alexander Shulgin wrote
> Hi Hackers,
> 
> This came up recently on general list (and I've just hit the same issue
> today):
>   http://www.postgresql.org/message-id/

> CAB7nPqTLmMn1LTb5WE0v0dO57iP0U73yKwzbZytAXDF1CAWLZg@.gmail

> 
> Why couldn't postgres re-create the dependent views automatically?  I
> mean it knows which views depend on the altered column and keeps the
> view definition, no?
> 
> Would a patch likely to be accepted?  How hard do you feel this might be
> to implement?  Any caveat that defeats the purpose of such feature?
> 
> Thanks.

Would it be possible to handle the specific case of varchar(n) to
varchar/text by just ignoring the error?

David J.




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Commits

  1. Allow CREATE OR REPLACE VIEW to add columns to the _end_ of the view.