Hi,
- if only for 0 or more layers, I opt for ***
- if we want to define a clear range of layers, I opt for *{start, end} or
**{start, end}
-----------------------------------
Xiangdong Huang
School of Software, Tsinghua University
黄向东
清华大学 软件学院
[email protected] <[email protected]> 于2022年6月21日周二 10:14写道：
> Hi guys!
> Now IoTDB supports the following path patterns:
> * (1 asterisk) - one layer
> ** (2 asterisks) - one or more layers
>
> We need to support a new path pattern: 0 or one or more layers, there
> are some optional schemes:
> Scheme 1, support it directly with a specific syntax:
> *** (3 asterisks) - 0 or one or more layers
>
> Scheme 2, use more common syntax:
> a special symbol (such as $, or someone else) - 0 or 1 layer
> $* - 0 or 1 or more layers
>
> JIRA: https://issues.apache.org/jira/browse/IOTDB-3450
>
> Any ideas?
>
>
>
> [email protected]
>
