# File lib/dm-migrations/adapters/dm-do-adapter.rb, line 41 def field_exists?(storage_name, column_name) statement = DataMapper::Ext::String.compress_lines("SELECT COUNT(*)\nFROM \"information_schema\".\"columns\"\nWHERE \"table_schema\" = ?\nAND \"table_name\" = ?\nAND \"column_name\" = ?\n") select(statement, schema_name, storage_name, column_name).first > 0 end