tst4000.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 16 行

# The 4000 series deals with strategic optimizer constructs
# common subexpression evaluation
optimizer.setDebug();
optimizer.commonTerms();
optimizer.aliases();
b:= bat.new(:int,:int);
c:= bat.new(:int,:int);       # identical until insert takes place
d:= algebra.select(b,0,100);
e:= algebra.select(b,0,100);    # mapped onto one instruction
k1:= 24;
k2:= 27;
l:= k1+k2;
l2:= k1+k2;             # mapped to l
l3:= l2+k1;             # replace the alias