Malthe Borch created NIFI-7763:
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Summary: Split and map functions in NiFi Expression Language
Key: NIFI-7763
URL: https://issues.apache.org/jira/browse/NIFI-7763
Project: Apache NiFi
Issue Type: Improvement
Reporter: Malthe Borch
This is a proposal to extend the NiFi Expression Language with functions
{{split}} and {{map}} that combine to allow expression such as:
{{${keys:split(","):map(key => "t1.${key} = t2.${key}"):join(" and ")}}}
That is, split the {{keys}} attribute and dynamically create a join condition
based on a set of primary keys.
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