Can I drop a NOT NUL constrain on an existing table?

From: stan <stanb(at)panix(dot)com>
To: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Can I drop a NOT NUL constrain on an existing table?
Date: 2020-01-16 14:43:20
Message-ID: 20200116144320.GB28117@panix.com
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I see how to do this if it is a "dcleared" constraint, but this was just
defined in the table createion as inL

report_no varchar UNIQUE ,

--
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
-- Benjamin Franklin

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