函数 left() 可以截取一个字符串左起指定长度的子字符串,并返回该字符串。
Arguments:
- 字符串 <string>
- 长度<number>
Returns:
- 字符串 <string>
一般用法
示例:异源别名直接计算
uncollect ["graph", "database"] as a
uncollect [2, 3] as b
return left(a, b)
| left(a, b) |
|------------|
| gr |
| dat |
示例:异源别名笛卡尔积后计算
uncollect ["graph", "database"] as a
uncollect [2, 3] as b
with left(a, b) as c
return c
| c |
|-----|
| gr |
| gra |
| da |
| dat |