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Document IS DISTINCT FROM in a more obvious place, and add some more

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index entries for IS-foo constructs.
This commit is contained in:
Tom Lane
2004-10-26 22:16:12 +00:00
parent 3b6cc1ad6d
commit 3d2849820b
2 changed files with 86 additions and 9 deletions
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14
doc/src/sgml/syntax.sgml
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@@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.95 2004/09/20 22:48:25 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.96 2004/10/26 22:16:12 tgl Exp $
-->
<chapter id="sql-syntax">
@@ -1421,6 +1421,10 @@ SELECT name, (SELECT max(pop) FROM cities WHERE cities.state = states.name)
<secondary>constructor</secondary>
</indexterm>
<indexterm>
<primary>ARRAY</primary>
</indexterm>
<para>
An array constructor is an expression that builds an
array value from values for its member elements. A simple array
@@ -1521,13 +1525,17 @@ SELECT ARRAY(SELECT oid FROM pg_proc WHERE proname LIKE 'bytea%');
<secondary>constructor</secondary>
</indexterm>
<indexterm>
<primary>ROW</primary>
</indexterm>
<para>
A row constructor is an expression that builds a row value (also
called a composite value) from values
for its member fields. A row constructor consists of the key word
<literal>ROW</literal>, a left parenthesis <literal>(</>, zero or more
<literal>ROW</literal>, a left parenthesis, zero or more
expressions (separated by commas) for the row field values, and finally
a right parenthesis <literal>)</>. For example,
a right parenthesis. For example,
<programlisting>
SELECT ROW(1,2.5,'this is a test');
</programlisting>