Npgsql: Validate marshalling GEO_SHAPE types as STRING

Author: amotl

by-language/csharp-npgsql/DemoTypes.cs

@@ -116,7 +116,7 @@ INSERT INTO testdrive.example (
                 ""array"",
                 ""object"",
                 geopoint,
-                -- geoshape,
+                geoshape,
                 float_vector
             ) VALUES (
                 @null_integer,
@@ -135,7 +135,7 @@ INSERT INTO testdrive.example (
                 @array,
                 @object,
                 @geopoint,
-                -- @egoshape,
+                @geoshape,
                 @float_vector
             );
         ", conn))
@@ -159,8 +159,7 @@ INSERT INTO testdrive.example (
                 // cmd.Parameters.AddWithValue("object", new Dictionary<string, string>(){{"foo", "bar"}});
                 cmd.Parameters.AddWithValue("object", @"{""foo"": ""bar""}");
                 cmd.Parameters.AddWithValue("geopoint", new List<double>{85.43, 66.23});
-                // FIXME: Npgsql.PostgresException : XX000: line 38:9: no viable alternative at input 'VALUES
-                // cmd.Parameters.AddWithValue("geoshape", "POLYGON ((5 5, 10 5, 10 10, 5 10, 5 5))");
+                cmd.Parameters.AddWithValue("geoshape", "POLYGON ((5 5, 10 5, 10 10, 5 10, 5 5))");
                 cmd.Parameters.AddWithValue("float_vector", new List<double> {1.1, 2.2, 3.3});
                 cmd.ExecuteNonQuery();
             }

by-language/csharp-npgsql/tests/DemoProgramTest.cs

@@ -119,9 +119,12 @@ public async Task TestAllTypesExample()
             Assert.Equal(@"{""foo"":""bar""}", row["object"]);
 
             // Geospatial types
+            // TODO: Unlock native data types?
+            //       GEO_POINT and GEO_SHAPE types can be marshalled back and forth using STRING.
+            //       GEO_POINT is using a tuple format, GEO_SHAPE is using the GeoJSON format.
             // Assert.Equal(new List<double>{85.43, 66.23}, row["geopoint"]);  // TODO
             Assert.Equal("(85.42999997735023,66.22999997343868)", row["geopoint"].ToString());  // FIXME
-            Assert.Equal(DBNull.Value, row["geoshape"]);  // FIXME
+            Assert.Equal(@"{""coordinates"":[[[5.0,5.0],[5.0,10.0],[10.0,10.0],[10.0,5.0],[5.0,5.0]]],""type"":""Polygon""}", row["geoshape"]);
 
             // Vector type
             Assert.Equal((new List<double>{1.1, 2.2, 3.3}).Select(d => (float) d).ToArray(), row["float_vector"]);