Daniel Becker created IMPALA-11778:
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Summary: Printing maps may produce invalid json
Key: IMPALA-11778
URL: https://issues.apache.org/jira/browse/IMPALA-11778
Project: IMPALA
Issue Type: Improvement
Components: Backend
Reporter: Daniel Becker
Assignee: Daniel Becker
Impala allows non-string types, for example numbers, to be keys in maps. We
print maps as json objects, but json objects only allow string keys. If the
Impala map has for example an INT key, the printed json is invalid.
Hive has the same issue.
We could introduce a query option that, when set to true, would convert
non-string keys to strings to produce valid json.
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