The key type can't be BOOL, ANY or DICTIONARY

Question

我在DolphinDB database的GUI中运行下列代码：

x=(int128("2e8ca9773da3a99f2c87a623ac34f242"),int128("2e8ca9773da3a99f2c87a623ac34f243"))

y=1..2

dict(x, y); 

报异常：

dict(x, y) => The key type can't be BOOL, ANY or DICTIONARY

请问为什么不行？

Answer 1

要用中括号，圆括号是tuple

x=[int128("2e8ca9773da3a99f2c87a623ac34f242"),int128("2e8ca9773da3a99f2c87a623ac34f243")]
y=1..2
dict(x, y);