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Remove pre-7.4 documentaiton mentions, now that 8.0 is the oldest

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supported release.
This commit is contained in:
Bruce Momjian
2010-02-24 03:33:49 +00:00
parent 6a2e19d96d
commit 7bfd95a4a2
6 changed files with 18 additions and 68 deletions
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29
doc/src/sgml/ddl.sgml
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@@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.88 2009/10/23 05:24:52 petere Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.89 2010/02/24 03:33:48 momjian Exp $ -->
<chapter id="ddl">
<title>Data Definition</title>
@@ -1795,18 +1795,12 @@ REVOKE CREATE ON SCHEMA public FROM PUBLIC;
</para>
<para>
In <productname>PostgreSQL</productname> versions before 7.3,
table names beginning with <literal>pg_</> were reserved. This is
no longer true: you can create such a table name if you wish, in
any non-system schema. However, it's best to continue to avoid
such names, to ensure that you won't suffer a conflict if some
future version defines a system table named the same as your
table. (With the default search path, an unqualified reference to
your table name would then be resolved as the system table instead.)
System tables will continue to follow the convention of having
names beginning with <literal>pg_</>, so that they will not
conflict with unqualified user-table names so long as users avoid
the <literal>pg_</> prefix.
It is best to avoid table names beginning with <literal>pg_</>
because they might someday conflict with system catalogs of the
same name. (<productname>PostgreSQL</productname> system catalog
table names always start with <literal>pg_</>). Of course, table
names can always be schema-qualified to avoid conflicting with
system catalog table names.
</para>
</sect2>
@@ -3040,15 +3034,6 @@ DROP TABLE products CASCADE;
</para>
</note>
<note>
<para>
Foreign key constraint dependencies and serial column dependencies
from <productname>PostgreSQL</productname> versions prior to 7.3
are <emphasis>not</emphasis> maintained or created during the
upgrade process. All other dependency types will be properly
created during an upgrade from a pre-7.3 database.
</para>
</note>
</sect1>
</chapter>