函数 substring() 可以截取一个字符串指定起始位置及长度的子字符串,并返回该字符串。
Arguments:
- 字符串 <string>
- 起始位置下标(从 0 开始) <number>
- 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 substring(a, 1, b)
| substring(a, b) |
|-----------------|
| ra |
| ata |
示例:异源别名笛卡尔积后计算
uncollect ["graph", "database"] as a
uncollect [2, 3] as b
with substring(a, 1, b) as c
return c
| c |
|-----|
| ra |
| rap |
| at |
| ata |