intersect_diff_void.mal

一个内存数据库的源代码这是服务器端还有客户端

a:=bat.new(:oid,:oid);
bat.insert(a,1@0,1@0);
ar:=bat.reverse(a);
b:=bat.new(:oid,:oid);
bat.insert(b,2@0,2@0);
br:=bat.reverse(b);

a0 := algebra.kintersect(a,b);
a0r:= bat.reverse(a0);
i  := bat.getSequenceBase(a0r);
io.print(i);

a0 := algebra.kintersect(b,a);
a0r:= bat.reverse(a0);
i  := bat.getSequenceBase(a0r);
io.print(i);

a0 := algebra.sintersect(a,b);
a0r:= bat.reverse(a0);
i  := bat.getSequenceBase(a0r);
io.print(i);

a0 := algebra.sintersect(b,a);
a0r:= bat.reverse(a0);
i  := bat.getSequenceBase(a0r);
io.print(i);

a1 := algebra.kdifference(a,b);
a1r:= bat.reverse(a1);
i  := bat.getSequenceBase(a1r);
io.print(i);

a1 := algebra.kdifference(b,a);
a1r:= bat.reverse(a1);
i  := bat.getSequenceBase(a1r);
io.print(i);

a1 := algebra.sdifference(a,b);
a1r:= bat.reverse(a1);
i  := bat.getSequenceBase(a1r);
io.print(i);

a1 := algebra.sdifference(b,a);
a1r:= bat.reverse(a1);
i  := bat.getSequenceBase(a1r);
io.print(i);