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Posted to issues@impala.apache.org by "Daniel Becker (Jira)" <ji...@apache.org> on 2022/12/06 16:18:00 UTC

[jira] [Created] (IMPALA-11778) Printing maps may produce invalid json

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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