From 5ad4f467561511175c314018e0b3c6e30a3d145b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 4 Feb 2016 12:13:04 +0200
Subject: Document MySQL DECIMAL mapping

---
 doc/manual.xhtml | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/doc/manual.xhtml b/doc/manual.xhtml
index d98474f..2787129 100644
--- a/doc/manual.xhtml
+++ b/doc/manual.xhtml
@@ -19991,6 +19991,24 @@ class object
 };
   </pre>
 
+  <p>The only built-in mapping provided for the MySQL <code>DECIMAL</code>
+     type is to <code>std::string/char[N]</code>, for example:</p>
+
+  <pre class="cxx">
+#pragma db object
+class object
+{
+  ...
+
+  #pragma db type ("DECIMAL(6,3)")
+  std::string value_;
+};
+  </pre>
+
+  <p>You can, however, map <code>DECIMAL</code> to a custom C++ type by
+  providing a suitable <code>odb::mysql::value_traits</code>
+  specialization.</p>
+
   <p>It is also possible to add support for additional MySQL types,
      such as geospatial types. For more information, refer to
      <a href="#14.8">Section 14.8, "Database Type Mapping
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