Nicholas Verbeck created PIG-2929:
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Summary: CONCAT returns null when 1 items is null
Key: PIG-2929
URL: https://issues.apache.org/jira/browse/PIG-2929
Project: Pig
Issue Type: Bug
Components: documentation, internal-udfs
Affects Versions: 0.9.2, 0.9.1, 0.9.0
Reporter: Nicholas Verbeck
Just stumbled upon this issue over the weekend. It appears the built-in CONCAT
function will return null in the advent of 1 item in the Tuple being null. If
this is as intended it would be nice if the docs made note of this. Otherwise
it would be nice if nulls where just skipped and a proper string of what was
left was returned. If all items are null then just return null in that case.
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