TestUtils.java 文件源码

private static String expandHql(
    String database,
    String table,
    List<FieldSchema> dataColumns,
    List<FieldSchema> partitionColumns) {
  List<String> dataColumnNames = toQualifiedColumnNames(table, dataColumns);
  List<String> partitionColumnNames = partitionColumns != null ? toQualifiedColumnNames(table, partitionColumns)
      : ImmutableList.<String> of();
  List<String> colNames = ImmutableList
      .<String> builder()
      .addAll(dataColumnNames)
      .addAll(partitionColumnNames)
      .build();

  String cols = COMMA_JOINER.join(colNames);
  return String.format("SELECT %s FROM `%s`.`%s`", cols, database, table);
}