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Re: Tablespaces in the data directory - Mailing list pgsql-hackers

From Noah Misch
Subject Re: Tablespaces in the data directory
Date
Msg-id 20121205010442.GA16472@tornado.leadboat.com
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In response to Re: Tablespaces in the data directory  (Andrew Dunstan <andrew@dunslane.net>)
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On Mon, Dec 03, 2012 at 01:14:30PM -0500, Andrew Dunstan wrote:
> I think it would be reasonable for it to complain if it came across a  
> PG_VERSION file in an unexpected location.

That sounds like a reliable approach to detecting the hazard.  Pseudocode:
chdir(proposed_tablespace_path)do {    if (stat("PG_VERSION"))        ereport(WARNING, ...)} while (chdir(".."))

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