Method unparse

core/src/main/java/org/apache/calcite/sql/SqlLambda.java:81–89

(SqlWriter writer, int leftPrec, int rightPrec)

  }

  @Override public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
    if (parameters.size() != 1) {
      writer.list(SqlWriter.FrameTypeEnum.PARENTHESES, SqlWriter.COMMA, stripList(parameters));
    } else {
      parameters.unparse(writer, leftPrec, rightPrec);
    }
    writer.keyword(OPERATOR.getName());
    expression.unparse(writer, leftPrec, rightPrec);
  }

  public SqlNodeList getParameters() {
    return parameters;