Horton

Exclude VACUUMs from RunningXactData

Simon Riggs <simon@2ndQuadrant.com>

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Commit: 32ac7a118fc17f5baac1b370f50d759c30bee00a
Author: Simon Riggs <simon@2ndQuadrant.com>
Date: 2018-06-07T19:38:12Z
Releases: 11.0 
Exclude VACUUMs from RunningXactData

GetRunningTransactionData() should ignore VACUUM procs because in some
cases they are assigned xids. This could lead to holding back xmin via
the route of passing the xid to standby and then having that hold back
xmin on master via feedback.

Backpatch to 9.1 needed, but will only do so on supported versions.
Backpatch once proven on the buildfarm.

Reported-by: Greg Stark
Author: Simon Riggs
Reviewed-by: Amit Kapila
Discussion: https://postgr.es/m/CANP8+jJBYt=4PpTfiPb0UrH1_iPhzsxKH5Op_Wec634F0ohnAw@mail.gmail.com

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PathChange+/−
src/backend/storage/ipc/procarray.c modified +5 −1

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