diff --git a/test/algorithms/set_operations/difference/difference.cpp b/test/algorithms/set_operations/difference/difference.cpp
index 64a119c9c..a02ba7cfc 100644
--- a/test/algorithms/set_operations/difference/difference.cpp
+++ b/test/algorithms/set_operations/difference/difference.cpp
@@ -427,19 +427,6 @@ void test_all()
 
     // Multi/box (should be moved to multi)
     {
-        /* Tested with SQL Geometry:
-                with viewy as (select geometry::STGeomFromText(
-                        'MULTIPOLYGON(((0 1,2 5,5 3,0 1)),((1 1,5 2,5 0,1 1)))',0) as  p,
-                  geometry::STGeomFromText(
-                        'POLYGON((2 2,2 4,4 4,4 2,2 2))',0) as q)
-
-                select
-                    p.STDifference(q).STArea(),p.STDifference(q).STNumGeometries(),p.STDifference(q) as p_min_q,
-                    q.STDifference(p).STArea(),q.STDifference(p).STNumGeometries(),q.STDifference(p) as q_min_p,
-                    p.STSymDifference(q).STArea(),q.STSymDifference(p) as p_xor_q
-                from viewy
-
-        */
         typedef bg::model::multi_polygon<polygon> mp;
 
         static std::string const clip = "POLYGON((2 2,4 4))";
diff --git a/test/algorithms/set_operations/difference/difference_multi.cpp b/test/algorithms/set_operations/difference/difference_multi.cpp
index 5462908c5..8a295a0e6 100644
--- a/test/algorithms/set_operations/difference/difference_multi.cpp
+++ b/test/algorithms/set_operations/difference/difference_multi.cpp
@@ -105,23 +105,6 @@ void test_areal()
         ggl_list_20111025_vd[2], ggl_list_20111025_vd[3],
             1, 4, 8.0, 1, 4, 12.5);
 
-    // Second case
-    // This can be tested with this SQL for SQL-Server
-    /*
-    with viewy as (select geometry::STGeomFromText(
-            'POLYGON((5 0,5 4,8 4,8 0,5 0))',0) as  p,
-      geometry::STGeomFromText(
-            'MULTIPOLYGON(((0 0,0 2,2 2,2 0,0 0)),((4 0,4 2,6 2,6 0,4 0)))',0) as q)
-    select
-        p.STDifference(q).STArea(),p.STDifference(q).STNumGeometries(),p.STDifference(q) as p_min_q,
-        q.STDifference(p).STArea(),q.STDifference(p).STNumGeometries(),q.STDifference(p) as q_min_p,
-        p.STSymDifference(q).STArea(),q.STSymDifference(p) as p_xor_q
-    from viewy
-
-    Outputting:
-    10, 1, <WKB>, 6, 2, <WKB>, 16, <WKB>
-    */
-
     test_one<Polygon, Polygon, MultiPolygon>("ggl_list_20111025_vd_2",
         ggl_list_20111025_vd_2[0], ggl_list_20111025_vd_2[1],
             1, 7, 10.0, 2, 10, 6.0);
diff --git a/test/algorithms/set_operations/difference/test_difference.hpp b/test/algorithms/set_operations/difference/test_difference.hpp
index f3189a5e3..d71911a57 100644
--- a/test/algorithms/set_operations/difference/test_difference.hpp
+++ b/test/algorithms/set_operations/difference/test_difference.hpp
@@ -237,19 +237,6 @@ void test_one(std::string const& caseid,
         double expected_area_s,
         ut_settings const& settings = ut_settings())
 {
-#ifdef BOOST_GEOMETRY_CHECK_WITH_SQLSERVER
-    std::cout
-        << "-- " << caseid << std::endl
-        << "with qu as (" << std::endl
-        << "select geometry::STGeomFromText('" << wkt1 << "',0) as p," << std::endl
-        << "geometry::STGeomFromText('" << wkt2 << "',0) as q)" << std::endl
-        << "select " << std::endl
-        << " p.STDifference(q).STNumGeometries() as cnt1,p.STDifference(q).STNumPoints() as pcnt1,p.STDifference(q).STArea() as area1," << std::endl
-        << " q.STDifference(p).STNumGeometries() as cnt2,q.STDifference(p).STNumPoints() as pcnt2,q.STDifference(p).STArea() as area2," << std::endl
-        << " p.STDifference(q) as d1,q.STDifference(p) as d2 from qu" << std::endl << std::endl;
-#endif
-
-
     G1 g1;
     bg::read_wkt(wkt1, g1);
 
@@ -279,40 +266,6 @@ void test_one(std::string const& caseid,
             expected_area_s,
             true, settings);
     }
-
-
-#ifdef BOOST_GEOMETRY_CHECK_WITH_POSTGIS
-    std::cout
-        << (counter > 0 ? "union " : "")
-        << "select " << counter++
-        << ", '" << caseid << "' as caseid"
-        << ", ST_NumPoints(ST_Difference(ST_GeomFromText('" << wkt1 << "'), "
-        << "      ST_GeomFromText('" << wkt2 << "'))) "
-        << ", ST_NumGeometries(ST_Difference(ST_GeomFromText('" << wkt1 << "'), "
-        << "      ST_GeomFromText('" << wkt2 << "'))) "
-        << ", ST_Area(ST_Difference(ST_GeomFromText('" << wkt1 << "'), "
-        << "      ST_GeomFromText('" << wkt2 << "'))) "
-        //<< ", " << expected_area1 << " as expected_area_a"
-        //<< ", " << expected_count1 << " as expected_count_a"
-        << ", ST_NumPoints(ST_Difference(ST_GeomFromText('" << wkt2 << "'), "
-        << "      ST_GeomFromText('" << wkt1 << "'))) "
-        << ", ST_NumGeometries(ST_Difference(ST_GeomFromText('" << wkt2 << "'), "
-        << "      ST_GeomFromText('" << wkt1 << "'))) "
-        << ", ST_Area(ST_Difference(ST_GeomFromText('" << wkt2 << "'), "
-        << "      ST_GeomFromText('" << wkt1 << "'))) "
-        //<< ", " << expected_area2 << " as expected_area_b"
-        //<< ", " << expected_count2 << " as expected_count_b"
-        << ", ST_NumPoints(ST_SymDifference(ST_GeomFromText('" << wkt1 << "'), "
-        << "      ST_GeomFromText('" << wkt2 << "'))) "
-        << ", ST_NumGeometries(ST_SymDifference(ST_GeomFromText('" << wkt1 << "'), "
-        << "      ST_GeomFromText('" << wkt2 << "'))) "
-        << ", ST_Area(ST_SymDifference(ST_GeomFromText('" << wkt1 << "'), "
-        << "      ST_GeomFromText('" << wkt2 << "'))) "
-        //<< ", " << expected_area1 + expected_area2 << " as expected_area_s"
-        //<< ", " << expected_count1 + expected_count2 << " as expected_count_s"
-        << std::endl;
-#endif
-
 }
 
 template <typename OutputType, typename G1, typename G2>