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Reserve the "pg_" namespace for roles

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This will prevent users from creating roles which begin with "pg_" and
will check for those roles before allowing an upgrade using pg_upgrade.

This will allow for default roles to be provided at initdb time.

Reviews by José Luis Tallón and Robert Haas
This commit is contained in:
Stephen Frost
2016-04-08 16:56:27 -04:00
parent fa6075e551
commit 293007898d
21 changed files with 226 additions and 13 deletions
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8
doc/src/sgml/ref/psql-ref.sgml
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@ -1365,13 +1365,15 @@ testdb=>
<varlistentry>
<term><literal>\dg[+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<term><literal>\dg[S+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<listitem>
<para>
Lists database roles.
(Since the concepts of <quote>users</> and <quote>groups</> have been
unified into <quote>roles</>, this command is now equivalent to
<literal>\du</literal>.)
By default, only user-created roles are shown; supply the
<literal>S</literal> modifier to include system roles.
If <replaceable class="parameter">pattern</replaceable> is specified,
only those roles whose names match the pattern are listed.
If the form <literal>\dg+</literal> is used, additional information
@ -1525,13 +1527,15 @@ testdb=&gt;
</varlistentry>
<varlistentry>
<term><literal>\du[+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<term><literal>\du[S+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<listitem>
<para>
Lists database roles.
(Since the concepts of <quote>users</> and <quote>groups</> have been
unified into <quote>roles</>, this command is now equivalent to
<literal>\dg</literal>.)
By default, only user-created roles are shown; supply the
<literal>S</literal> modifier to include system roles.
If <replaceable class="parameter">pattern</replaceable> is specified,
only those roles whose names match the pattern are listed.
If the form <literal>\du+</literal> is used, additional information