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Why do we have checkPointCopy in ControlFileData? - Mailing list pgsql-novice

From Jialun Zhang
Subject Why do we have checkPointCopy in ControlFileData?
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Msg-id CAMFL+JjujGH6XbgDkvnRN5dVsMqYjjnN2k71vzcQE=0THFvEAA@mail.gmail.com
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Responses Re: Why do we have checkPointCopy in ControlFileData?  (Tom Lane <tgl@sss.pgh.pa.us>)
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Hi All,

I am reading the code about checkpoint, I think ControlFileData::checkPoint in pg_control.h is the last checkpoint, so why is there also a checkPointCopy? What is its role?

Thanks,
Reatank

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