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-rw-r--r--odb/pgsql/forward.hxx2
1 files changed, 2 insertions, 0 deletions
diff --git a/odb/pgsql/forward.hxx b/odb/pgsql/forward.hxx
index 640d379..dd6f5ad 100644
--- a/odb/pgsql/forward.hxx
+++ b/odb/pgsql/forward.hxx
@@ -18,7 +18,9 @@ namespace odb
class connection;
typedef details::shared_ptr<connection> connection_ptr;
class connection_factory;
+ class statement;
class transaction;
+ class tracer;
class query;
// Implementation details.