diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml index 83b487d4f9f045d1b7b52ccf6110648f68d14656..fb727a8433c7887b31b2aeb89bb243f29c9a524f 100644 --- a/doc/src/sgml/syntax.sgml +++ b/doc/src/sgml/syntax.sgml @@ -1,5 +1,5 @@ <!-- -$Header: /cvsroot/pgsql/doc/src/sgml/syntax.sgml,v 1.62 2002/06/15 21:28:55 tgl Exp $ +$Header: /cvsroot/pgsql/doc/src/sgml/syntax.sgml,v 1.63 2002/06/15 22:15:03 tgl Exp $ --> <chapter id="sql-syntax"> @@ -1471,11 +1471,11 @@ SELECT somefunc() OR true; be used. For example, this is an untrustworthy way of trying to avoid division by zero in a WHERE clause: <programlisting> -SELECT ... WHERE x <> 0 AND y/x > 1.5; +SELECT ... WHERE x <> 0 AND y/x > 1.5; </programlisting> but this is safe: <programlisting> -SELECT ... WHERE CASE WHEN x <> 0 THEN y/x > 1.5 ELSE false END; +SELECT ... WHERE CASE WHEN x <> 0 THEN y/x > 1.5 ELSE false END; </programlisting> A CASE construct used in this fashion will defeat optimization attempts, so it should only be done when necessary.