diff --git a/include/tao/pq/transaction.hpp b/include/tao/pq/transaction.hpp
index 938f98b..a8d2a91 100644
--- a/include/tao/pq/transaction.hpp
+++ b/include/tao/pq/transaction.hpp
@@ -36,11 +36,6 @@ namespace tao::pq
       [[nodiscard]] auto subtransaction() -> std::shared_ptr< transaction >;
       [[nodiscard]] auto pipeline() -> std::shared_ptr< pq::pipeline >;
 
-      void set_single_row_mode();
-#if defined( LIBPQ_HAS_CHUNK_MODE )
-      void set_chunk_mode( const int rows );
-#endif
-
       template< parameter_type... As >
       auto execute( const internal::zsv statement, As&&... as )
       {
diff --git a/include/tao/pq/transaction_base.hpp b/include/tao/pq/transaction_base.hpp
index 353e7aa..1015bfc 100644
--- a/include/tao/pq/transaction_base.hpp
+++ b/include/tao/pq/transaction_base.hpp
@@ -135,6 +135,11 @@ namespace tao::pq
          send_params( statement, p.m_size, p.m_types, p.m_values, p.m_lengths, p.m_formats );
       }
 
+      void set_single_row_mode();
+#if defined( LIBPQ_HAS_CHUNK_MODE )
+      void set_chunk_mode( const int rows );
+#endif
+
       [[nodiscard]] auto get_result( const std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now() ) -> result;
       void consume_pipeline_sync( const std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now() );
    };
diff --git a/src/lib/pq/transaction.cpp b/src/lib/pq/transaction.cpp
index b288192..b774802 100644
--- a/src/lib/pq/transaction.cpp
+++ b/src/lib/pq/transaction.cpp
@@ -128,24 +128,6 @@ namespace tao::pq
       return std::make_shared< pq::pipeline >( m_connection );
    }
 
-   void transaction::set_single_row_mode()
-   {
-      check_current_transaction();
-      if( PQsetSingleRowMode( m_connection->underlying_raw_ptr() ) == 0 ) {
-         throw std::runtime_error( "unable to switch to single row mode" );
-      }
-   }
-
-#if defined( LIBPQ_HAS_CHUNK_MODE )
-   void transaction::set_chunk_mode( const int rows )
-   {
-      check_current_transaction();
-      if( PQsetChunkedRowsMode( m_connection->underlying_raw_ptr(), rows ) == 0 ) {
-         throw std::runtime_error( "unable to switch to chunk mode" );
-      }
-   }
-#endif
-
    void transaction::commit()
    {
       check_current_transaction();
diff --git a/src/lib/pq/transaction_base.cpp b/src/lib/pq/transaction_base.cpp
index f8beed6..e187507 100644
--- a/src/lib/pq/transaction_base.cpp
+++ b/src/lib/pq/transaction_base.cpp
@@ -45,6 +45,24 @@ namespace tao::pq
       m_connection->send_params( statement, n_params, types, values, lengths, formats );
    }
 
+   void transaction_base::set_single_row_mode()
+   {
+      check_current_transaction();
+      if( PQsetSingleRowMode( m_connection->underlying_raw_ptr() ) == 0 ) {
+         throw std::runtime_error( "unable to switch to single row mode" );
+      }
+   }
+
+#if defined( LIBPQ_HAS_CHUNK_MODE )
+   void transaction_base::set_chunk_mode( const int rows )
+   {
+      check_current_transaction();
+      if( PQsetChunkedRowsMode( m_connection->underlying_raw_ptr(), rows ) == 0 ) {
+         throw std::runtime_error( "unable to switch to chunk mode" );
+      }
+   }
+#endif
+
    auto transaction_base::get_result( const std::chrono::steady_clock::time_point start ) -> result
    {
       check_current_transaction();
diff --git a/src/test/pq/pipeline_mode.cpp b/src/test/pq/pipeline_mode.cpp
index c150055..ccca866 100644
--- a/src/test/pq/pipeline_mode.cpp
+++ b/src/test/pq/pipeline_mode.cpp
@@ -132,6 +132,42 @@ namespace
 
          pl->finish();
       }
+
+      {
+         connection->execute( "DROP TABLE IF EXISTS tao_pipeline_mode" );
+         connection->execute( "CREATE TABLE tao_pipeline_mode ( name TEXT PRIMARY KEY, age INTEGER NOT NULL )" );
+
+         connection->prepare( "insert_user", "INSERT INTO tao_pipeline_mode ( name, age ) VALUES ( $1, $2 )" );
+
+         auto pl = connection->pipeline();
+
+         pl->send( "insert_user", "Daniel", 42 );
+         pl->send( "insert_user", "Tom", 41 );
+         pl->send( "insert_user", "Jerry", 29 );
+         pl->sync();
+
+         TEST_ASSERT( pl->get_result().rows_affected() == 1 );  // daniel
+         TEST_ASSERT( pl->get_result().rows_affected() == 1 );  // tom
+         TEST_ASSERT( pl->get_result().rows_affected() == 1 );  // jerry
+         TEST_EXECUTE( pl->consume_sync() );
+
+         pl->send( "SELECT name, age FROM tao_pipeline_mode" );
+         pl->send( "SELECT name, age FROM tao_pipeline_mode" );
+         pl->sync();
+
+         pl->set_single_row_mode();
+
+         TEST_ASSERT( pl->get_result().size() == 1 );
+         TEST_ASSERT( pl->get_result().size() == 1 );
+         TEST_ASSERT( pl->get_result().size() == 1 );
+         TEST_ASSERT( pl->get_result().empty() );
+
+         TEST_ASSERT( pl->get_result().size() == 3 );
+
+         TEST_EXECUTE( pl->consume_sync() );
+
+         pl->finish();
+      }
    }
 
 }  // namespace