mysql-test/r/compare.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/explain.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/group_by.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect3.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect3_jcl6.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect4.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_mat.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_no_mat.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_no_opts.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_no_semijoin.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_sj.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_sj_jcl6.result:
  Expression cache added to EXPLAIN EXTENDED output.
sql/item.h:
  Expression cache added to EXPLAIN EXTENDED output.