From 52a8d4f8f7e286482886861175312c1434b1d4fd Mon Sep 17 00:00:00 2001
From: Magnus Hagander <magnus@hagander.net>
Date: Mon, 10 Mar 2008 12:55:13 +0000
Subject: Implement enum type for guc parameters, and convert a couple of
 existing variables to it. More need to be converted, but I wanted to get this
 in before it conflicts with too much...

Other than just centralising the text-to-int conversion for parameters,
this allows the pg_settings view to contain a list of available options
and allows an error hint to show what values are allowed.
---
 doc/src/sgml/catalogs.sgml | 12 +++++++++---
 doc/src/sgml/config.sgml   |  5 +++--
 2 files changed, 12 insertions(+), 5 deletions(-)

(limited to 'doc/src')

diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index 8a16c77a7dd..4c92c2c77a5 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.162 2008/03/06 18:49:32 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.163 2008/03/10 12:55:13 mha Exp $ -->
 <!--
  Documentation of the system catalogs, directed toward PostgreSQL developers
  -->
@@ -6260,8 +6260,8 @@
      <row>
       <entry><structfield>vartype</structfield></entry>
       <entry><type>text</type></entry>
-      <entry>Parameter type (<literal>bool</>, <literal>integer</>,
-       <literal>real</>, or <literal>string</>)
+      <entry>Parameter type (<literal>bool</>, <literal>enum</>,
+       <literal>integer</>, <literal>real</>, or <literal>string</>)
       </entry>
      </row>
      <row>
@@ -6281,6 +6281,12 @@
       <entry>Maximum allowed value of the parameter (NULL for non-numeric
       values)</entry>
      </row>
+     <row>
+      <entry><structfield>enumvals</structfield></entry>
+      <entry><type>text</type></entry>
+      <entry>Allowed values in enum parameters (NULL for non-enum
+      values)</entry>
+     </row>
     </tbody>
    </tgroup>
   </table>
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 0c2740890da..38f996ec0ba 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.169 2008/03/10 03:22:29 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.170 2008/03/10 12:55:13 mha Exp $ -->
 
 <chapter Id="runtime-config">
   <title>Server Configuration</title>
@@ -162,7 +162,8 @@ SET ENABLE_SEQSCAN TO OFF;
     displaying and updating session run-time parameters.  It is equivalent
     to <command>SHOW</> and <command>SET</>, but can be more convenient
     to use because it can be joined with other tables, or selected from using
-    any desired selection condition.
+    any desired selection condition. It also contains more information about
+    what values are allowed for the parameters.
    </para>
   </sect1>
 
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