Tom Lane bcbecbce2f Don't propagate a null subtransaction snapshot up to parent transaction.
This oversight could cause logical decoding to fail to decode an outer
transaction containing changes, if a subtransaction had an XID but no
actual changes.  Per bug #14279 from Marko Tiikkaja.  Patch by Marko
based on analysis by Andrew Gierth.

Discussion: <20160804191757.1430.39011@wrigleys.postgresql.org>
2016-08-07 13:15:55 -04:00
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