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Add per-user and per-database connection limit options.

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This patch also includes preliminary update of pg_dumpall for roles.
Petr Jelinek, with review by Bruce Momjian and Tom Lane.
This commit is contained in:
Tom Lane
2005-07-31 17:19:22 +00:00
parent b125877107
commit d42cf5a42a
30 changed files with 783 additions and 180 deletions
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20
doc/src/sgml/ref/create_role.sgml
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@@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/create_role.sgml,v 1.1 2005/07/26 23:24:02 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/create_role.sgml,v 1.2 2005/07/31 17:19:17 tgl Exp $
PostgreSQL documentation
-->
@@ -30,6 +30,7 @@ where <replaceable class="PARAMETER">option</replaceable> can be:
| CREATEUSER | NOCREATEUSER
| INHERIT | NOINHERIT
| LOGIN | NOLOGIN
| CONNECTION LIMIT <replaceable class="PARAMETER">connlimit</replaceable>
| [ ENCRYPTED | UNENCRYPTED ] PASSWORD '<replaceable class="PARAMETER">password</replaceable>'
| VALID UNTIL '<replaceable class="PARAMETER">timestamp</replaceable>'
| IN ROLE <replaceable class="PARAMETER">rolename</replaceable> [, ...]
@@ -172,6 +173,16 @@ where <replaceable class="PARAMETER">option</replaceable> can be:
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CONNECTION LIMIT</literal> <replaceable class="parameter">connlimit</replaceable></term>
<listitem>
<para>
If role can log in, this specifies how many concurrent connections
the role can make. -1 (the default) means no limit.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>PASSWORD</> <replaceable class="parameter">password</replaceable></term>
<listitem>
@@ -327,6 +338,13 @@ where <replaceable class="PARAMETER">option</replaceable> can be:
the same functionality as <command>CREATE ROLE</command> (in fact,
it calls this command) but can be run from the command shell.
</para>
<para>
The <literal>CONNECTION LIMIT</> option is only enforced approximately;
if two new sessions start at about the same time when just one
connection <quote>slot</> remains for the role, it is possible that
both will fail. Also, the limit is never enforced for superusers.
</para>
</refsect1>
<refsect1>