/xa.c/1.1/Mon Jun  7 21:04:39 2004//TKDE_3_3_BRANCH
/xa_db.c/1.1/Mon Jun  7 21:04:39 2004//TKDE_3_3_BRANCH
/xa_map.c/1.1/Mon Jun  7 21:04:39 2004//TKDE_3_3_BRANCH
D
