binsemijoin2.mal

来自「一个内存数据库的源代码这是服务器端还有客户端」· MAL 代码 · 共 32 行

# Test provided as bug-report by 
# Maurice van Keulen <[e-mail]>
# Torsten Grust <[e-mail]>

left:=bat.new(:oid,:oid);
right:=bat.new(:oid,:oid);

i:=0;
barrier go:= i<12;
	o:= calc.oid(i);
	bat.append(left,o);
	i:= i+1;
	redo go:= i<12;
exit go;
i:=0;
barrier go:= i<200;
	j:= i*2;
	oj:= calc.oid(j);
	bat.insert(right,oj,nil:oid);
	i:= i+1;
	redo go:= i<200;
exit go;

io.print(left);
io.print(right);

bat.order(right);
io.print(right);

z:= algebra.semijoin(left,right);
io.print(z);