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author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-10-22 03:50:27 +0000 |
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committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-10-22 03:50:27 +0000 |
commit | 336297e67675eb7e6bd277dee4542da260742459 (patch) | |
tree | a4bf27fc58ff2a1872c6ca7164387f96c02b6b74 | |
parent | 2744abb736fefe89e3ce8d23024a6ab0d343bdf5 (diff) | |
download | postgresql-336297e67675eb7e6bd277dee4542da260742459.tar.gz postgresql-336297e67675eb7e6bd277dee4542da260742459.zip |
Another example-to-documentation difference. Maybe we can find a
better way to keep these in sync...
-rw-r--r-- | doc/src/sgml/xoper.sgml | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/doc/src/sgml/xoper.sgml b/doc/src/sgml/xoper.sgml index 80e6793397e..39c49d40361 100644 --- a/doc/src/sgml/xoper.sgml +++ b/doc/src/sgml/xoper.sgml @@ -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"> @@ -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) RETURNS complex AS '<replaceable>filename</replaceable>', 'complex_add' - LANGUAGE C; + LANGUAGE C IMMUTABLE STRICT; CREATE OPERATOR + ( leftarg = complex, @@ -113,7 +113,7 @@ SELECT (a + b) AS c FROM test_complex; </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 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 @@ -132,7 +132,7 @@ SELECT (a + b) AS c FROM test_complex; <literal>tab2.y = tab1.x</>, because the indexscan machinery expects to see the indexed column on the left of the operator it is given. <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 operator with commutator information. </para> |