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Editorial Team
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Asked: 2026-05-30T02:50:38+00:00

I am running hive query using get_json_object to read json strings from files in

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I am running hive query using get_json_object to read json strings from files in HDFS.
And I bumped with some strange behavior:
if the json is as follow:

{"data":{"oneSlash":"aaa\bbb","twoSlashes":"ccc\\ddd","threeSlashes":"eee\\\fff"}}

The result of the query is:

{"oneSlash":"aaabbb","twoSlashes":"ccc\\ddd","threeSlashes":"eee\\fff"}

I understand the ‘oneSlash’ and the ‘threeSlashes’ result but why ‘twoSlashes’ did not equal to “ccc\ddd”?
after all ‘\’ should be unescaped to ‘\’

BTW the quesry is:

SELECT get_json_object(escaping_test.data, '$.data') FROM escaping_test
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1 Answer

  1. Editorial Team

    it’s because \b and \f is valid escape characters whereas \d is not. there’s a post about this in more detail: Where can I find a list of escape characters required for my JSON ajax return type?

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