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postgres block_size problem

From: "Bhujbal, Santosh" <sbhujbal(at)starentnetworks(dot)com>
To: <pgsql-admin(at)postgresql(dot)org>
Subject: postgres block_size problem
Date: 2008-12-30 12:28:15
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
Hi All,

We were getting the following error on executing a COPY command on

SQL execution failed, Internal error. SQL Statement: (COPY command
failed with error: ERROR:  row is too big: size 8200, maximum size 8136)

So, in order to fix the error we tried increasing the block size to 16k
and recompiled the postgres library. The problem at hand was resolved
with the new postgres library and we were now able to populate data for
the mentioned query successfully. However, this experiment fails when we
tried to run the new postgres on data directory generated with 8k block
size which is likely to occur during an upgrade with postgres log
showing the following error:


2008-12-30 14:57:33 IST  DETAIL:  The database cluster was initialized
with BLCKSZ 8192, but the server was compiled with BLCKSZ 16384.

2008-12-30 14:57:33 IST  HINT:  It looks like you need to recompile or


What could be the possible solution to this?





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