On Sun, Sep 16, 2012 at 06:16:55PM -0400, Tom Lane wrote:
> Jeff Janes <[email protected]> writes:
> > On Thu, Sep 13, 2012 at 10:33 AM, Tom Lane <[email protected]> wrote:
> >> Just pretend it's a table.
> >> ALTER TABLE index_name ALTER COLUMN column_name SET STATISTICS ...
> >> 
> >> You'll need to look at the index (eg with \d) to see what the name of
> >> the desired column is, since index expressions have system-assigned
> >> column names.
> 
> > Is this documented anywhere?  I couldn't find it.  If not, which
> > section would be the best one to add it to?
> 
> It's not documented, mainly because it hasn't reached the level of being
> a supported feature.  I'd like to figure out how to get pg_dump to dump
> such settings before we call it supported.  (The stumbling block is
> exactly that index column names aren't set in stone, so it's not clear
> that the ALTER command would do the right thing on dump-and-reload.)

Is this  TODO?

-- 
  Bruce Momjian  <[email protected]>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +


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