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Another example-to-documentation difference. Maybe we can find a

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better way to keep these in sync...
This commit is contained in:
Tom Lane 2003-10-22 03:50:27 +00:00
parent 2744abb736
commit 336297e676
1 changed files with 4 additions and 4 deletions
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doc/src/sgml/xoper.sgml
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@ -1,5 +1,5 @@
<!-- <!--
$Header: /cvsroot/pgsql/doc/src/sgml/xoper.sgml,v 1.27 2003/10/21 22:51:14 tgl Exp $ $Header: /cvsroot/pgsql/doc/src/sgml/xoper.sgml,v 1.28 2003/10/22 03:50:27 tgl Exp $
--> -->
<sect1 id="xoper"> <sect1 id="xoper">
@ -41,7 +41,7 @@ $Header: /cvsroot/pgsql/doc/src/sgml/xoper.sgml,v 1.27 2003/10/21 22:51:14 tgl E
CREATE FUNCTION complex_add(complex, complex) CREATE FUNCTION complex_add(complex, complex)
RETURNS complex RETURNS complex
AS '<replaceable>filename</replaceable>', 'complex_add' AS '<replaceable>filename</replaceable>', 'complex_add'
LANGUAGE C; LANGUAGE C IMMUTABLE STRICT;
CREATE OPERATOR + ( CREATE OPERATOR + (
leftarg = complex, leftarg = complex,
@ -113,7 +113,7 @@ SELECT (a + b) AS c FROM test_complex;
</para> </para>
<para> <para>
The left operand type of a commuted operator is the same as the The left operand type of a commutable operator is the same as the
right operand type of its commutator, and vice versa. So the name of right operand type of its commutator, and vice versa. So the name of
the commutator operator is all that <ProductName>PostgreSQL</ProductName> the commutator operator is all that <ProductName>PostgreSQL</ProductName>
needs to be given to look up the commutator, and that's all that needs to needs to be given to look up the commutator, and that's all that needs to
@ -132,7 +132,7 @@ SELECT (a + b) AS c FROM test_complex;
<literal>tab2.y = tab1.x</>, because the indexscan machinery expects <literal>tab2.y = tab1.x</>, because the indexscan machinery expects
to see the indexed column on the left of the operator it is given. to see the indexed column on the left of the operator it is given.
<ProductName>PostgreSQL</ProductName> will <emphasis>not</> simply <ProductName>PostgreSQL</ProductName> will <emphasis>not</> simply
assume that this is a valid transformation --- the definer of the assume that this is a valid transformation --- the creator of the
<literal>=</> operator must specify that it is valid, by marking the <literal>=</> operator must specify that it is valid, by marking the
operator with commutator information. operator with commutator information.
</para> </para>