NOT LIKE index support

From: Arjen Nienhuis <a(dot)g(dot)nienhuis(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: NOT LIKE index support
Date: 2016-03-15 22:01:22
Message-ID: CAG6W84JbQdjA=88Yp33w6uMzGXRFjS23yG2oX1wLkojAcoN+Pw@mail.gmail.com
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I noticed index support for NOT LIKE is missing. Is there a special reason
for that, or would a patch be accepted?

A use case would be:

... WHERE url NOT LIKE 'http%'

Or

... WHERE path NOT LIKE '/%'

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