NULL vs empty string in Query Tool

From: Chris Reigrut <chris(at)reigrut(dot)net>
To: pgadmin-support(at)postgresql(dot)org
Subject: NULL vs empty string in Query Tool
Date: 2005-06-29 21:09:46
Message-ID: 42C30E1A.5050101@reigrut.net
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Is there any way to distinguish between an empty string ('') and a NULL
string value in the query tool?

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