rows modified in current transaction

From: Miroslav Šimulčík <simulcik(dot)miro(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: rows modified in current transaction
Date: 2012-08-30 14:36:06
Message-ID: CAHRNM692v_ddAFWTvWB4rQv99w=Cq4_=zH2bEgDLtfq4eEt3jA@mail.gmail.com
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Hi,

is there any way to check if row have already been modified by the current
transaction? I tried condition txid_current() = xmin, but there is problem
with the savepoints. After every savepoint rows are getting higher xmin
values, but txid_current() remains the same.

Regards,
Miroslav Simulcik

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