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https://issues.apache.org/jira/browse/NIFI-15807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18072607#comment-18072607
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ASF subversion and git services commented on NIFI-15807:
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Commit 29a3144dcd7ee7271a0859a3a9be79b212d65d96 in nifi's branch
refs/heads/dependabot/npm_and_yarn/nifi-frontend/src/main/frontend/hono-4.12.12
from Alaksiej Ščarbaty
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=29a3144dcd7 ]
NIFI-15807 Record path toString returns a string type (#11119)
The toString function previously returned a FieldValue that inherited
the source field's DataType instead of STRING. This caused type
mismatches when the source field was not already a string (e.g.
ARRAY[BYTE]).
> Invalid output field type in ToString record path function
> ----------------------------------------------------------
>
> Key: NIFI-15807
> URL: https://issues.apache.org/jira/browse/NIFI-15807
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 2.8.0
> Reporter: Alaksiej Ščarbaty
> Assignee: Alaksiej Ščarbaty
> Priority: Major
> Fix For: 2.10.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> The {{toString()}} RecordPath function preserves the source field's data type
> (e.g., LONG, INT) on the returned {{FieldValue}} instead of using STRING.
> When used with {{UpdateRecord}} to write the field, the destination field
> inherits the source's numeric type, which is incorrect.
> The output fields should always be of a STRING type.
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