tst4030.mal

一个内存数据库的源代码这是服务器端还有客户端

# testing subsumption optimalisation
r:= bat.new(:int,:int);
bat.insert(r,5,1);
bat.insert(r,6,2);
bat.insert(r,7,3);
bat.insert(r,8,4);
s:= algebra.select(r,0,5);	# equal to a copy
io.print(s);
t:= algebra.select(r,0,3);
#print(t);
u:= algebra.select(r,0,3);	# reuse t
io.print(u);
io.print("done");
optimizer.commonTerms();
optimizer.aliases();