Fix AR type cast to mirror quoting

Author: nikolai-b

lib/active_record/connection_adapters/postgis/quoting.rb

@@ -5,8 +5,9 @@ module ConnectionAdapters
     module PostGIS
       module Quoting
         def type_cast(value)
-          case value
-          when RGeo::Feature::Instance
+          if RGeo::Feature::Geometry.check_type(value)
+            RGeo::WKRep::WKBGenerator.new(hex_format: true, type_format: :ewkb, emit_ewkb_srid: true).generate(value)
+          elsif value.is_a?(RGeo::Cartesian::BoundingBox)
             value.to_s
           else
             super

test/cases/spatial_queries_test.rb

@@ -122,6 +122,14 @@ def test_geo_safe_where
       assert_equal 1, SpatialModel.where("ST_DWITHIN(latlon_geo, ?, 500)", geographic_factory.point(-72.099, 42.099)).count
     end
 
+    def test_geo_query_matches_sql
+      value = geographic_factory.point(-72.099, 42.099)
+      assert_match(
+        RGeo::WKRep::WKBGenerator.new(hex_format: true, type_format: :ewkb, emit_ewkb_srid: true).generate(value),
+        SpatialModel.where("ST_DWITHIN(latlon_geo, ?, 500)", value).explain.inspect
+      )
+    end
+
     private
 
     def create_model