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Correct epoch of txid_current() when executed on a Hot Standby server.

author Simon Riggs <simon@2ndQuadrant.com>

2012年3月29日 13:57:08 +0000 (14:57 +0100)

committer Simon Riggs <simon@2ndQuadrant.com>

2012年3月29日 13:57:08 +0000 (14:57 +0100)

commit 20d98ab6e4110087d1816cd105a40fcc8ce0a307

tree a4cda4221136ce505035a66dbb2177ac782452e0 tree

parent 4d278b785e22ff8d56ac86d5ed1871e096b2ea80 commit | diff

Correct epoch of txid_current() when executed on a Hot Standby server.
Initialise ckptXidEpoch from starting checkpoint and maintain the correct
value as we roll forwards. This allows GetNextXidAndEpoch() to return the
correct epoch when executed during recovery. Backpatch to 9.0 when the
problem is first observable by a user.

Bug report from Daniel Farina

src/backend/access/transam/xlog.c diff | blob | blame | history

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