Postgres, fix argument error for method enable_extension and disable_extension

Many test were failing because of this issue

Author: JesseChavez

lib/arjdbc/postgresql/adapter.rb

@@ -301,14 +301,21 @@ def release_advisory_lock(lock_id) # :nodoc:
       query_value("SELECT pg_advisory_unlock(#{lock_id})")
     end
 
-    def enable_extension(name)
-      exec_query("CREATE EXTENSION IF NOT EXISTS \"#{name}\"").tap {
-        reload_type_map
-      }
+    def enable_extension(name, **)
+      schema, name = name.to_s.split(".").values_at(-2, -1)
+      sql = +"CREATE EXTENSION IF NOT EXISTS \"#{name}\""
+      sql << " SCHEMA #{schema}" if schema
+
+      internal_exec_query(sql).tap { reload_type_map }
     end
 
-    def disable_extension(name)
-      exec_query("DROP EXTENSION IF EXISTS \"#{name}\" CASCADE").tap {
+    # Removes an extension from the database.
+    #
+    # [<tt>:force</tt>]
+    #   Set to +:cascade+ to drop dependent objects as well.
+    #   Defaults to false.
+    def disable_extension(name, force: false)
+      internal_exec_query("DROP EXTENSION IF EXISTS \"#{name}\"#{' CASCADE' if force == :cascade}").tap {
         reload_type_map
       }
     end
@@ -322,7 +329,7 @@ def extension_enabled?(name)
     end
 
     def extensions
-      exec_query("SELECT extname FROM pg_extension", "SCHEMA").cast_values
+      internal_exec_query("SELECT extname FROM pg_extension", "SCHEMA", allow_retry: true, materialize_transactions: false).cast_values
     end
 
     # Returns a list of defined enum types, and their values.

lib/arjdbc/postgresql/oid_types.rb

@@ -67,28 +67,6 @@ def assert_valid_registration(oid, oid_type)
 
     # @private
     module OIDTypes
-
-      # @override
-      def enable_extension(name)
-        result = super(name)
-        @extensions = nil
-        reload_type_map
-        result
-      end
-
-      # @override
-      def disable_extension(name)
-        result = super(name)
-        @extensions = nil
-        reload_type_map
-        result
-      end
-
-      # @override
-      def extensions
-        @extensions ||= super
-      end
-
       def get_oid_type(oid, fmod, column_name, sql_type = '') # :nodoc:
         # Note: type_map is storing a bunch of oid type prefixed with a namespace even
         # if they are not namespaced (e.g. ""."oidvector").  builtin types which are