提交 3a7211aa 编写于 作者: M Magnus Hagander

Typo pointed out by Erwin Brandstetter. Remove the whole makes it even

better, per JD.
上级 3bf66d6f
<!-- $PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.119 2007/06/05 21:31:04 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.120 2007/12/11 18:30:20 mha Exp $ -->
<chapter id="sql-syntax">
<title>SQL Syntax</title>
......@@ -1748,7 +1748,7 @@ SELECT ... WHERE CASE WHEN x &lt;&gt; 0 THEN y/x &gt; 1.5 ELSE false END;
</programlisting>
A <literal>CASE</> construct used in this fashion will defeat optimization
attempts, so it should only be done when necessary. (In this particular
example, it would doubtless be best to sidestep the problem by writing
example, it would be best to sidestep the problem by writing
<literal>y &gt; 1.5*x</> instead.)
</para>
</sect2>
......
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