pg_resetwal is broken if run from v10 against older version of PG data directory

From: tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: pg_resetwal is broken if run from v10 against older version of PG data directory
Date: 2017-05-29 08:18:28
Message-ID: f4b8eb91-b934-8a0d-b3cc-68f06e2279d1@enterprisedb.com
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Hi,

I have installed PG v9.6 / v9.5 , if we run pg_resetwal from v10
binaries against data directory of v9.6/9.5 ,getting this error -

centos(at)centos-cpula bin]$ ./pg_resetwal -D /tmp/pg9.6/bin/data/
pg_resetwal: pg_control exists but is broken or unknown version; ignoring it
pg_resetwal: could not open directory "pg_wal": No such file or directory
[centos(at)centos-cpula bin]$

Steps to reproduce-
installed PG v9.6
installed PG v10
go to bin directory of v10 and run pg_resetwal , provide -D = data
directory of v9.6.

--
regards,tushar
EnterpriseDB https://www.enterprisedb.com/
The Enterprise PostgreSQL Company

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