On Tue, Dec 4, 2012 at 05:35:27PM -0500, Tom Lane wrote:
Alvaro Herrera <alvherre@2ndquadrant.com> writes:
Maybe we can mark GIN indexes as invalid after pg_upgrade somehow, so
that they require reindex in the new cluster before they can be used for
queries or index updates.
Bumping the version number in the GIN metapage would be sufficient.
And it is easy for pg_upgrade to report which indexes need rebuilding,
and it can create a script file to do the reindexing.

--
   Bruce Momjian <bruce@momjian.us> http://momjian.us
   EnterpriseDB http://enterprisedb.com

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

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