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体验新版 GitCode,发现更多精彩内容 >>
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dc1cb4ce
编写于
12月 08, 2005
作者:
B
Bruce Momjian
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差异文件
Add documentation about the inability of plpsql to use parameter names
that are the same as column names used in the function.
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4ebd4224
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+14
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doc/src/sgml/plpgsql.sgml
doc/src/sgml/plpgsql.sgml
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doc/src/sgml/plpgsql.sgml
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dc1cb4ce
<!--
$PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.8
1 2005/12/01 10:36:57 neilc
Exp $
$PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.8
2 2005/12/08 18:02:04 momjian
Exp $
-->
<chapter id="plpgsql">
...
...
@@ -3094,6 +3094,15 @@ AFTER INSERT OR UPDATE OR DELETE ON sales_fact
</para>
</listitem>
<listitem>
<para>
You cannot use parameter names that are the same as columns
that are referenced in the function. Oracle allows you to do this
if you qualify the parameter name using
<literal>function_name.paramater_name</>.
</para>
</listitem>
<listitem>
<para>
You can overload function names in <productname>PostgreSQL</>. This is
...
...
@@ -3111,7 +3120,7 @@ AFTER INSERT OR UPDATE OR DELETE ON sales_fact
<listitem>
<para>
In <productname>PostgreSQL</> the function body
has to
be written as
In <productname>PostgreSQL</> the function body
must
be written as
a string literal. Therefore you need to use dollar quoting or escape
single quotes in the function body. See <xref
linkend="plpgsql-quote-tips">.
...
...
@@ -3128,10 +3137,11 @@ AFTER INSERT OR UPDATE OR DELETE ON sales_fact
<listitem>
<para>
Since there are no packages, there are no package-level variables
either. This is somewhat annoying. You
may be able to keep per-session
state in temporary tables,
instead.
either. This is somewhat annoying. You
can keep per-session state
in temporary tables
instead.
</para>
</listitem>
</itemizedlist>
</para>
...
...
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