Commit 1b9b1d18 authored by Pietro Abate's avatar Pietro Abate
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[r2004-07-03 12:05:13 by beppe] Empty log message

Original author: beppe
Date: 2004-07-03 12:06:44+00:00
parent c16f9a88
......@@ -682,9 +682,10 @@ expression, the <code>%%pi%%</code>'s are patterns, and the
</p>
<p>
A <code>select</code> expression works like a set of nested
<code>transform</code> expressions. The advantage of using selections is that
these queries are automatically optimized by applying classical logic SQL query
optimizations techniques (automatic optimization can be disabled).
<code>transform</code> expressions. The advantage of using select rather than
transform is that queries are automatically optimized by applying classical
logic SQL optimization techniques (this automatic optimization can be
disabled).
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