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understanding output from Explain

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To: pgsql-general@xxxxxxxxxxxxxx
Subject: understanding output from Explain
From: Tom Allison <tom@xxxxxxxxxxx>
Date: Sun, 22 Apr 2007 09:43:32 -0400
User-agent: Icedove 1.5.0.10 (X11/20070329)

"Seq Scan on"  - is this just a FULL TABLE scan?

I'm familiar with Oracles explain plans and terminology.
But not so much so with psql...

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