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Adding some new operators

From: Feng Tian <ftian(at)cs(dot)wisc(dot)edu>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Adding some new operators
Date: 2001-06-06 18:17:16
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers

I am trying to use postgresql in a research
project.  I need to add several new operators, some
will probably take more than 2 input tuple streams.
The new operator will be considered by optimizer
when estimating cost and choosing a plan.

Can anyone tell me how hard this will be?  And
where is a good place to start? 



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