Re: [HACKERS] Custom compression methods

On Mon, Dec 11, 2017 at 1:06 PM, Alexander Korotkov
<a.korotkov@postgrespro.ru> wrote:
> OK, but NOTICE that presumably unexpected table rewrite takes place could be
> still useful.

I'm not going to complain too much about that, but I think that's
mostly a failure of expectation rather than a real problem.  If the
documentation says what the user should expect, and they expect
something else, tough luck for them.

> Also we probably should add some view that will expose compression methods
> whose are currently preserved for columns.  So that user can correctly
> construct SET COMPRESSION query that doesn't rewrites table without digging
> into internals (like directly querying pg_depend).

Yes.  I wonder if \d or \d+ can show it somehow.

-- 
Robert Haas
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