From 88bd306832f476987cf8166e8095756a5986d38b Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 15 Aug 2002 02:59:18 +0000
Subject: [PATCH] > Neil Conway <nconway@klamath.dyndns.org> writes: > > This
patch improves the documentation of the UPDATE and ALTER TABLE > > commands
to elaborate on the effect of specifying an "ONLY" clause. > > Unfortunately
this is still only half the truth ... see the > SQL_INHERITANCE configuration
variable.
Okay, I've attached an updated patch with more information on
SQL_INHERITANCE and inheritance behavior in prior releases.
Neil Conway
---
doc/src/sgml/ref/alter_table.sgml | 12 ++++++++++--
doc/src/sgml/ref/select.sgml | 6 ++++--
doc/src/sgml/ref/update.sgml | 12 ++++++++++--
3 files changed, 24 insertions(+), 6 deletions(-)
diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index 0bfe88cf54..61409861cf 100644
--- a/doc/src/sgml/ref/alter_table.sgml
+++ b/doc/src/sgml/ref/alter_table.sgml
@@ -1,5 +1,5 @@
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_table.sgml,v 1.48 2002/08/02 18:15:04 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/alter_table.sgml,v 1.49 2002/08/15 02:59:18 momjian Exp $
PostgreSQL documentation
-->
@@ -60,7 +60,15 @@ ALTER TABLE <replaceable class="PARAMETER">table</replaceable>
<term><replaceable class="PARAMETER"> table </replaceable></term>
<listitem>
<para>
- The name (possibly schema-qualified) of an existing table to alter.
+ The name (possibly schema-qualified) of an existing table to
+ alter. If <literal>ONLY</> is specified, only that table is
+ altered. If <literal>ONLY</> is not specified, the table and all
+ its descendant tables (if any) are updated. <literal>*</> can be
+ appended to the table name to indicate that descendant tables are
+ to be scanned, but in the current version, this is the default
+ behavior. (In releases before 7.1, <literal>ONLY</> was the
+ default behavior.) The default can be altered by changing the
+ <option>SQL_INHERITANCE</option> configuration option.
</para>
</listitem>
</varlistentry>
diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml
index a1970c3e88..7a696491a6 100644
--- a/doc/src/sgml/ref/select.sgml
+++ b/doc/src/sgml/ref/select.sgml
@@ -1,5 +1,5 @@
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/select.sgml,v 1.55 2002/08/04 19:48:09 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/select.sgml,v 1.56 2002/08/15 02:59:18 momjian Exp $
PostgreSQL documentation
-->
@@ -131,7 +131,9 @@ where <replaceable class="PARAMETER">from_item</replaceable> can be:
tables (if any) are scanned. <literal>*</> can be appended to the
table name to indicate that descendant tables are to be scanned, but
in the current version, this is the default behavior. (In releases
- before 7.1, <literal>ONLY</> was the default behavior.)
+ before 7.1, <literal>ONLY</> was the default behavior.) The
+ default behavior can be modified by changing the
+ <option>SQL_INHERITANCE</option> configuration option.
</para>
</listitem>
</varlistentry>
diff --git a/doc/src/sgml/ref/update.sgml b/doc/src/sgml/ref/update.sgml
index 439e11be4b..3825be5bc1 100644
--- a/doc/src/sgml/ref/update.sgml
+++ b/doc/src/sgml/ref/update.sgml
@@ -1,5 +1,5 @@
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/update.sgml,v 1.19 2002/04/23 02:07:16 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/update.sgml,v 1.20 2002/08/15 02:59:18 momjian Exp $
PostgreSQL documentation
-->
@@ -40,7 +40,15 @@ UPDATE [ ONLY ] <replaceable class="PARAMETER">table</replaceable> SET <replacea
<term><replaceable class="PARAMETER">table</replaceable></term>
<listitem>
<para>
- The name (optionally schema-qualified) of an existing table.
+ The name (optionally schema-qualified) of an existing table. If
+ <literal>ONLY</> is specified, only that table is updated. If
+ <literal>ONLY</> is not specified, the table and all its
+ descendant tables (if any) are updated. <literal>*</> can be
+ appended to the table name to indicate that descendant tables are
+ to be scanned, but in the current version, this is the default
+ behavior. (In releases before 7.1, <literal>ONLY</> was the
+ default behavior.) The default can be altered by changing the
+ <option>SQL_INHERITANCE</option> configuration option.
</para>
</listitem>
</varlistentry>