Add keyspace to drop_table

Handles for the case where tables with the same name are in multiple keyspaces. This allows to target a specific keyspace to remove the table.

lib/planetscale_rails/migration.rb

@@ -13,6 +13,13 @@ def create_table(table_name, **options)
         end
         super(table_name, **options.except(:keyspace))
       end
+
+      def drop_table(table_name, **options)
+        if ENV["ENABLE_PSDB"] && options[:keyspace].present?
+          table_name = "#{options[:keyspace]}.#{table_name}"
+        end
+        super(table_name, **options.except(:keyspace))
+      end
     end
   end
 end