Method set_join_cond

sql/table.h:663–664

  Item         **join_cond_ref() { return &m_join_cond; }
  Item          *join_cond() const { return m_join_cond; }
  Item          *set_join_cond(Item *val)
                 { return m_join_cond= val; }
  /*
    The structure of the join condition presented in the member above
    can be changed during certain optimizations. This member