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Handle array columns by picking the first element#4909
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Signed-off-by: Lantao Jin <ltjin@amazon.com>
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LantaoJin
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Description
PPL v3 cannot handle the fields with array values. This PR is to handle those array columns by picking the first value instead of failure.
This PR is not to support array (ref #3751). It just mitigates the issue of query failures when access an array field.
Related Issues
Resolves #4173
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