Re: We have a requirement to downgrade from PostgreSQL 9.5.4 to 9.5.2

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От Venkata B Nagothi
Тема Re: We have a requirement to downgrade from PostgreSQL 9.5.4 to 9.5.2
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Msg-id CAEyp7J_x9GFSM9jApbQbS+vS6D+23Rnhp95XBxFY=-4T=yNFfQ@mail.gmail.com
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Ответ на We have a requirement to downgrade from PostgreSQL 9.5.4 to 9.5.2  (KGA Official <kga.official@gmail.com>)
Ответы Re: We have a requirement to downgrade from PostgreSQL 9.5.4 to 9.5.2  (KGA Official <kga.official@gmail.com>)
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We are currently running at 9.5.2 and plan to upgrade to 9.5.4, but our change requirement needs to plan for a downgrade with data preservation, before upgrade is authorized. 

Thus, I am asking this: Is it safe to downgrade from 9.5.4 to 9.5.2 by simply replacing the binaries? We will keep the data folder same.

Technically, that should not be a problem. The only thing to foresee would be that, if you are upgrading to fix any BUGs or CVEs, then downgrading would revert the fixes. 
Just curious to know - when you say downgrade, do you mean to say there has to be a back-out plan in place if the upgrade fails ? or you are really going to downgrade again ?

Regards,
Venkata B N

Fujitsu Australia

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