private static List expandColumn()

in zetasql-toolkit-core/src/main/java/com/google/zetasql/toolkit/tools/lineage/ColumnLineageExtractor.java [73:85]

• 11 lines of code
• 2 McCabe index (conditional complexity)

  private static List<ResolvedColumn> expandColumn(ResolvedColumn column) {
    Type type = column.getType();

    if (type.isStruct()) {
      return type.asStruct().getFieldList().stream()
          .map(field -> buildColumnSubfield(column, field.getName(), field.getType()))
          .map(ColumnLineageExtractor::expandColumn)
          .flatMap(List::stream)
          .collect(Collectors.toList());
    }

    return ImmutableList.of(column);
  }