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Posted to jira@arrow.apache.org by "Weston Pace (Jira)" <ji...@apache.org> on 2021/09/09 01:18:00 UTC

[jira] [Created] (ARROW-13943) [Python][C++] Hide hash_* functions from pyarrow.compute

Weston Pace created ARROW-13943:
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             Summary: [Python][C++] Hide hash_* functions from pyarrow.compute
                 Key: ARROW-13943
                 URL: https://issues.apache.org/jira/browse/ARROW-13943
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, Python
            Reporter: Weston Pace


These functions have been specifically forbidden from being called by python.  An attempt to do so will yield:

pyarrow.lib.ArrowNotImplementedError: Direct execution of HASH_AGGREGATE functions

The functions should not show up in pc.list_functions at all and pc.get_function should return None if given 'hash_sum'.  Perhaps they could be stored in a different registry?  Or, since we are special casing them anyways, special case them in some way they can be hidden?



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