if (elementTypes.some(et => et.udt_name === 'geometry') && this.dialect.showGeometryTypeQuery) {
          const gquery = this.dialect.showGeometryTypeQuery(table.table_name, table.table_schema);
          const gtypes = await this.executeQuery<ColumnElementType>(gquery);
          gtypes.forEach(gt => {
            const fld = fields[gt.column_name] as Field;