Hi hackers,
When I read the heapam_visibility.c, I found that there is some code in
HeapTupleSatisfiesXXX that has a similar code for pre-9.0 binary upgrades.
HeapTupleSatisfiesSelf, HeapTupleSatisfiesToast and HeapTupleSatisfiesDirty
have the same code for pre-9.0 binary upgrades. HeapTupleSatisfiesUpdate
has a similar code, except it returns TM_Result other than boolean.
HeapTupleSatisfiesMVCC also has a similar code like HeapTupleSatisfiesSelf,
expect it use XidInMVCCSnapshot other than TransactionIdIsInProgress.
The most different is HeapTupleSatisfiesVacuumHorizon.
Could we encapsulate the code for pre-9.0 binary upgrades? This idea comes from [1].
Any thoughts?
[1] https://www.postgresql.org/message-id/8a855f33-2581-66bf-85f7-0b99239edbda%40postgrespro.ru
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Regrads,
Japin Li.
ChengDu WenWu Information Technology Co.,Ltd.
