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-rw-r--r--odb/relational/source.hxx2
1 files changed, 2 insertions, 0 deletions
diff --git a/odb/relational/source.hxx b/odb/relational/source.hxx
index 42d0f9b..c24b7c4 100644
--- a/odb/relational/source.hxx
+++ b/odb/relational/source.hxx
@@ -62,6 +62,8 @@ namespace relational
//
struct query_parameters: virtual context
{
+ typedef query_parameters base;
+
virtual string
next ()
{