>>Making ALTER TABLE RENAME abort-safe requires changing the
conventions
        >>for naming physical table files, and the details have been
sufficiently
        >>controversial that it's not been done yet.  In the meantime our
only
        >>choices are to forbid ALTER TABLE RENAME within transaction
blocks, or
        >>allow it with the knowledge that people can shoot themselves in
the foot
        >>with it.  The above warning notice is the current compromise.
        >
        > Is it going to be in 7.1? If not, it might be worth disabling in
TX blocks
        > since a mistyped SQL query can cause an aborted transaction,
something that
        > is somewhat counter-intuitive. Maybe the message should be
expanded to say:

        Just couple days ago I've said that right now I implement
        new file naming because of this is required by WAL. As additional
        result ALTER TABLE RENAME will not rename files any more and so will
        be rollback-able. Please wait ~ 1 day -:)

        Vadim

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