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enable_indexonly

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: enable_indexonly
Date: 2012-04-27 15:08:00
Message-ID: CA+U5nMJtNO6f1xB6eXbxWpKmJSy-7CZjcssh-1eOE+wEJ-w54A@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
I notice that there isn't a parameter called enable_indexonly (or similar).

ISTM that such a major new feature should be controlled by a planner
method parameter, just as all the existing planner methods are.

This will help us evaluate index only scans in production, and turn
them off if they have negative impacts.

-- 
 Simon Riggs                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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