public void setNonFkSideIsFiltered(boolean nonFkSideIsFiltered) {
    this.nonFkSideIsFiltered = nonFkSideIsFiltered;
  }
Merge the rhs tables from another join tree.

@param src
         the source join tree
ql/src/java/org/apache/hadoop/hive/ql/parse/QBJoinTree.java