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From: Rainer Weikusat <rweikusat@talktalk.net>
Newsgroups: comp.databases.postgresql
Subject: Re: Issues with backing up Postgres by copying folder
Date: Sun, 23 Apr 2017 22:15:16 +0100
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DFS <nospam@dfs.com> writes:
> Windows
> Postgres 9.6.2
>
> On install I set the /data directory to a data drive (D:\)
>
> How much trouble will it cause if I:
>
> 1) backup that entire /data directory by copying it to a backup place
> 2) reinstall Postgres (and set the /data directory to the same
>    location as before)
> 3) copy over the new /data directory with my backup?
>
> No pgdump - just copy and replace files.

Is there a reason why you want to follow such a cumbersome and fragile
procedure?