http://www.slony.info/bugzilla/show_bug.cgi?id=289

Jan Wieck <jan at wi3ck.info> changed:

           What    |Removed                     |Added
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         AssignedTo|slony1-bugs at lists.slony.inf |jan at wi3ck.info
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             Status|NEW                         |ASSIGNED

--- Comment #7 from Jan Wieck <jan at wi3ck.info> 2014-04-12 09:44:58 PDT ---
A discussion on pgsql-hackers has revealed that this is a bug in PostgreSQL
connected to two-phase commit. There is apparently a small window in which two
PGPROC entries are visible with the same xid.

I am proposing a patch to PostgreSQL that will remove duplicate xip entries in
txid_current_snapshot() and ignore existing duplicates in txid_snapshot_in().

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