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https://issues.apache.org/jira/browse/ARROW-18019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jin Shang updated ARROW-18019:
------------------------------
    Description: 
# Some dynamic_casts are not necessary because the safety is checked already.
 # RecordBatch's column(int i) function involves atomic operation and 
column_data(int i) doesn't. So we prefer to use column_data() instead if 
column()->data().

  was:
# Some dynamic_casts are not necessary because the safety is checked already.
 # RecordBatch's column(int i) function involves atomic operation and 
column_data(int i) doesn't. So we prefer to use column_data(i) instead if 
column(i)->data().


> [C++][Gandiva] Improve Projector evaluation performance
> -------------------------------------------------------
>
>                 Key: ARROW-18019
>                 URL: https://issues.apache.org/jira/browse/ARROW-18019
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++ - Gandiva
>            Reporter: Jin Shang
>            Priority: Minor
>
> # Some dynamic_casts are not necessary because the safety is checked already.
>  # RecordBatch's column(int i) function involves atomic operation and 
> column_data(int i) doesn't. So we prefer to use column_data() instead if 
> column()->data().



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