[jira] [Commented] (NIFI-10970) Add a 'count' function to RecordPath

["ASF subversion and git services (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-10970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17680018#comment-17680018 ] 

ASF subversion and git services commented on NIFI-10970:
--------------------------------------------------------

Commit 2ead9e54947a56f59faead0e8a5f324056d47171 in nifi's branch refs/heads/main from Mark Payne
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=2ead9e5494 ]

NIFI-10970: Added a count RecordPath function

Signed-off-by: Chris Sampson <ch...@gmail.com>

This closes #6778


> Add a 'count' function to RecordPath
> ------------------------------------
>
>                 Key: NIFI-10970
>                 URL: https://issues.apache.org/jira/browse/NIFI-10970
>             Project: Apache NiFi
>          Issue Type: New Feature
>          Components: Extensions
>            Reporter: Mark Payne
>            Assignee: Mark Payne
>            Priority: Major
>             Fix For: 1.20.0
>
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> We should provide a {{count}} function for RecordPath. Currently there's no simple way to express something like "get element A where at least 1 of the child elements meets some criteria."
> We should provide the ability to count the number of elements that match a given RecordPath. For example, I can get all items from an order that have a price over 10 by using the RecordPath  {{/orders/items[price > 10]}}
> However, I have no way of counting how many of those items have a price over 10.



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