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https://issues.apache.org/jira/browse/IOTDB-3450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17585648#comment-17585648
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Xiangdong Huang commented on IOTDB-3450:
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Hi,
> *( , ) - 0 or more layers, maybe we can use a shortcut (such as ***)?
yes it is better to add this grammer suger.
> Support new path pattern: 0 or more layers
> ------------------------------------------
>
> Key: IOTDB-3450
> URL: https://issues.apache.org/jira/browse/IOTDB-3450
> Project: Apache IoTDB
> Issue Type: New Feature
> Reporter: Guanfei Guo
> Assignee: 高希鸣
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.13.1
>
>
> 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, with the
> following syntax:
> *** (3 asterisks) -{color:#172b4d} 0 or one or more layers{color}
>
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