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Posted to jira@arrow.apache.org by "Dominik Moritz (Jira)" <ji...@apache.org> on 2022/01/19 21:53:00 UTC

[jira] [Created] (ARROW-15379) Use a flywheel for struct row

Dominik Moritz created ARROW-15379:
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             Summary: Use a flywheel for struct row
                 Key: ARROW-15379
                 URL: https://issues.apache.org/jira/browse/ARROW-15379
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Dominik Moritz


When we access a row from a table or a struct, we create a proxy for the struct. We could improve the performance of these accesses by creating a single instance of the proxy and store it on the vector or the data type and then reuse that instance. 

This should improve performance. 

See https://github.com/apache/arrow/blob/7029f90ea3b39e97f1a671227ca932cbcdbcee05/js/src/visitor/get.ts#L219 and https://github.com/apache/arrow/blob/7029f90ea3b39e97f1a671227ca932cbcdbcee05/js/src/vector/struct.ts#L27. 



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