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Re: pg_upgrade from Postgresql-12 to Postgresql-13 fails with "Creating dump of database schemas postgres *failure*"

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On 2022-02-19 14:54:41 +0800, Yoong S. Chow wrote:
> Could you please clarify what core files are? I am truly a newbie to
> postgresql. 

Core files are a feature of Linux and other Unix-like operating systems.
When a process crashes, the OS records its state in a file named "core"
(sometimes withe process id attached). You can then use a debugger to
inspect this file and investigate the cause of the crash.

        hp


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