From 2d228c59fc6bd96944f91912c2b174cc63f56aab Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 8 Sep 2015 17:27:53 +0200
Subject: Add operator+= (query, query_column)

---
 odb/mssql/query.hxx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/odb/mssql/query.hxx b/odb/mssql/query.hxx
index 67b2d26..3097641 100644
--- a/odb/mssql/query.hxx
+++ b/odb/mssql/query.hxx
@@ -415,6 +415,10 @@ namespace odb
         return *this;
       }
 
+      template <typename T, database_type_id ID>
+      query_base&
+      operator+= (const query_column<T, ID>&);
+
       // Implementation details.
       //
     public:
@@ -1477,6 +1481,14 @@ namespace odb
       return r;
     }
 
+    template <typename T, database_type_id ID>
+    inline query_base& query_base::
+    operator+= (const query_column<T, ID>& c)
+    {
+      append (c.table (), c.column ());
+      return *this;
+    }
+
     //
     //
     template <typename T, database_type_id>
-- 
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