flat
Parlog83 with sequential-and and sequential-or
eliminated.
["Strand: New Concepts on Parallel Programming", Ian Foster et
al, P-H 1990].
Strand88 is a commercial implementation.
2. A query language, implemented on top of
INGRES (an
RDBMS). ["Modelling Summary Data", R. Johnson, Proc ACM
SIGMOD Conf 1981].