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https://issues.apache.org/jira/browse/NIFI-10970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17680018#comment-17680018
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ASF subversion and git services commented on NIFI-10970:
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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 <[email protected]>
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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