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Posted to issues-all@impala.apache.org by "Quanlong Huang (JIRA)" <ji...@apache.org> on 2018/09/23 04:14:00 UTC

[jira] [Created] (IMPALA-7610) Parse JSON path individually and cache them in JSON functions

Quanlong Huang created IMPALA-7610:
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             Summary: Parse JSON path individually and cache them in JSON functions
                 Key: IMPALA-7610
                 URL: https://issues.apache.org/jira/browse/IMPALA-7610
             Project: IMPALA
          Issue Type: Improvement
            Reporter: Quanlong Huang


In IMPALA-376, we implement Hive's UDF get_json_object. However, the JSON path is parsed everytime the function is called, while it's usually a constant string. We can parse the JSON path and cache it in the query's lifecycle.



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