public static TVFInfo resolveTVFOutputSchema()

in zetasql-toolkit-bigquery/src/main/java/com/google/zetasql/toolkit/catalog/bigquery/FunctionResultTypeResolver.java [268:284]

• 12 lines of code
• 3 McCabe index (conditional complexity)

  public static TVFInfo resolveTVFOutputSchema(
      TVFInfo tvfInfo, LanguageOptions languageOptions, SimpleCatalog catalog) {

    if (tvfInfo.getOutputSchema().isPresent()) {
      // The output schema is already known, no need to infer it
      return tvfInfo;
    }

    // The return type is unknown, try to infer it

    try {
      TVFRelation newOutputSchema = inferTVFOutputSchema(tvfInfo, languageOptions, catalog);
      return tvfInfo.toBuilder().setOutputSchema(newOutputSchema).build();
    } catch (CouldNotInferFunctionReturnType err) {
      throw new MissingFunctionResultType(tvfInfo.getNamePath(), err);
    }
  }