Method toSqlImpl

fe/src/main/java/org/apache/impala/analysis/Expr.java:877–877

Returns a SQL string representing this expr. Subclasses should override this method instead of toSql() to ensure that parenthesis are properly added around the toSql().

(ToSqlOptions options)

   * instead of toSql() to ensure that parenthesis are properly added around the toSql().
   */
  protected abstract String toSqlImpl(ToSqlOptions options);

  protected String toSqlImpl() { return toSqlImpl(DEFAULT); };