From: Christoph Berg <myon@debian.org>
Date: Wed, 31 Aug 2022 11:52:50 +0200
Subject: [PATCH] plpgsql-trigger.html: Use more concise wording for TG_
 variables

To improve readability of the TG_ variables definition list, this moves
the datatypes up to the defined term to avoid having each entry start
with "Data type", and removes some more redundant clutter ("Variable
holding...") from the descriptions that didn't carry any information.
---
 doc/src/sgml/plpgsql.sgml | 51 ++++++++++++++++++---------------------
 1 file changed, 24 insertions(+), 27 deletions(-)

diff --git a/doc/src/sgml/plpgsql.sgml b/doc/src/sgml/plpgsql.sgml
index cf387dfc3f..985aa4d6a5 100644
--- a/doc/src/sgml/plpgsql.sgml
+++ b/doc/src/sgml/plpgsql.sgml
@@ -4032,10 +4032,10 @@ ASSERT <replaceable class="parameter">condition</replaceable> <optional> , <repl
 
    <variablelist>
     <varlistentry>
-     <term><varname>NEW</varname></term>
+     <term><varname>NEW</varname> <type>record</type></term>
      <listitem>
       <para>
-       Data type <type>RECORD</type>; variable holding the new
+       new
        database row for <command>INSERT</command>/<command>UPDATE</command> operations in row-level
        triggers. This variable is null in statement-level triggers
        and for <command>DELETE</command> operations.
@@ -4044,10 +4044,10 @@ ASSERT <replaceable class="parameter">condition</replaceable> <optional> , <repl
     </varlistentry>
 
     <varlistentry>
-     <term><varname>OLD</varname></term>
+     <term><varname>OLD</varname> <type>record</type></term>
      <listitem>
       <para>
-       Data type <type>RECORD</type>; variable holding the old
+       old
        database row for <command>UPDATE</command>/<command>DELETE</command> operations in row-level
        triggers. This variable is null in statement-level triggers
        and for <command>INSERT</command> operations.
@@ -4056,20 +4056,19 @@ ASSERT <replaceable class="parameter">condition</replaceable> <optional> , <repl
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_NAME</varname></term>
+     <term><varname>TG_NAME</varname> <type>name</type></term>
      <listitem>
       <para>
-       Data type <type>name</type>; variable that contains the name of the trigger actually
+       name of the trigger
        fired.
       </para>
      </listitem>
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_WHEN</varname></term>
+     <term><varname>TG_WHEN</varname> <type>text</type></term>
      <listitem>
       <para>
-       Data type <type>text</type>; a string of
        <literal>BEFORE</literal>, <literal>AFTER</literal>, or
        <literal>INSTEAD OF</literal>, depending on the trigger's definition.
       </para>
@@ -4077,43 +4076,41 @@ ASSERT <replaceable class="parameter">condition</replaceable> <optional> , <repl
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_LEVEL</varname></term>
+     <term><varname>TG_LEVEL</varname> <type>text</type></term>
      <listitem>
       <para>
-       Data type <type>text</type>; a string of either
-       <literal>ROW</literal> or <literal>STATEMENT</literal>
+       <literal>ROW</literal> or <literal>STATEMENT</literal>,
        depending on the trigger's definition.
       </para>
      </listitem>
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_OP</varname></term>
+     <term><varname>TG_OP</varname> <type>text</type></term>
      <listitem>
       <para>
-       Data type <type>text</type>; a string of
+       operation for which the trigger was fired:
        <literal>INSERT</literal>, <literal>UPDATE</literal>,
-       <literal>DELETE</literal>, or <literal>TRUNCATE</literal>
-       telling for which operation the trigger was fired.
+       <literal>DELETE</literal>, or <literal>TRUNCATE</literal>.
       </para>
      </listitem>
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_RELID</varname></term>
+     <term><varname>TG_RELID</varname> <type>oid</type> (references <link linkend="catalog-pg-class"><structname>pg_class</structname></link>.<structfield>oid</structfield>)</term>
      <listitem>
       <para>
-       Data type <type>oid</type>; the object ID of the table that caused the
+       object ID of the table that caused the
        trigger invocation.
       </para>
      </listitem>
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_RELNAME</varname></term>
+     <term><varname>TG_RELNAME</varname> <type>name</type></term>
      <listitem>
       <para>
-       Data type <type>name</type>; the name of the table that caused the trigger
+       table that caused the trigger
        invocation. This is now deprecated, and could disappear in a future
        release. Use <literal>TG_TABLE_NAME</literal> instead.
       </para>
@@ -4121,40 +4118,40 @@ ASSERT <replaceable class="parameter">condition</replaceable> <optional> , <repl
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_TABLE_NAME</varname></term>
+     <term><varname>TG_TABLE_NAME</varname> <type>name</type></term>
      <listitem>
       <para>
-       Data type <type>name</type>; the name of the table that
+       table that
        caused the trigger invocation.
       </para>
      </listitem>
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_TABLE_SCHEMA</varname></term>
+     <term><varname>TG_TABLE_SCHEMA</varname> <type>name</type></term>
      <listitem>
       <para>
-       Data type <type>name</type>; the name of the schema of the
+       schema of the
        table that caused the trigger invocation.
       </para>
      </listitem>
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_NARGS</varname></term>
+     <term><varname>TG_NARGS</varname> <type>integer</type></term>
      <listitem>
       <para>
-       Data type <type>integer</type>; the number of arguments given to the trigger
+       number of arguments given to the trigger
        function in the <command>CREATE TRIGGER</command> statement.
       </para>
      </listitem>
     </varlistentry>
 
     <varlistentry>
-     <term><varname>TG_ARGV[]</varname></term>
+     <term><varname>TG_ARGV</varname> <type>text[]</type></term>
      <listitem>
       <para>
-       Data type array of <type>text</type>; the arguments from
+       arguments from
        the <command>CREATE TRIGGER</command> statement.
        The index counts from 0. Invalid
        indexes (less than 0 or greater than or equal to <varname>tg_nargs</varname>)
-- 
2.35.1


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