Method clone

fe/src/main/java/org/apache/impala/analysis/TableRef.java:817–818

Returns a deep clone of this table ref without also cloning the chain of table refs. Sets leftTblRef_ in the returned clone to null.

()

   * Sets leftTblRef_ in the returned clone to null.
   */
  @Override
  protected TableRef clone() { return new TableRef(this); }

  public void reset() {
    isAnalyzed_ = false;