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https://issues.apache.org/jira/browse/ARROW-2354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16414137#comment-16414137
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ASF GitHub Bot commented on ARROW-2354:
---------------------------------------

cpcloud commented on a change in pull request #1794: ARROW-2354: [C++] Make 
PyDecimal_Check() faster
URL: https://github.com/apache/arrow/pull/1794#discussion_r177165146
 
 

 ##########
 File path: cpp/src/arrow/python/helpers.cc
 ##########
 @@ -227,12 +227,16 @@ Status UInt64FromPythonInt(PyObject* obj, uint64_t* out) 
{
 }
 
 bool PyDecimal_Check(PyObject* obj) {
-  // TODO(phillipc): Is this expensive?
 
 Review comment:
   Guess the answer is "yes" :)

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> [C++] PyDecimal_Check() is much too slow
> ----------------------------------------
>
>                 Key: ARROW-2354
>                 URL: https://issues.apache.org/jira/browse/ARROW-2354
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++, Python
>    Affects Versions: 0.9.0
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Major
>              Labels: pull-request-available
>
> See https://github.com/apache/arrow/issues/1792



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