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https://issues.apache.org/jira/browse/ARROW-15064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17490929#comment-17490929
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David Li commented on ARROW-15064:
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StringArrays are contiguous, but the null bitmap needs to be accounted for. (I
suppose we could do a 'fast' check of the entire buffer, especially since null
slots shouldn't have values in them, actually - and if there's an error, go
back and scan the individual strings.)
> [C++] Vectorize CheckStringHasNoStructuralChars in CSV writer
> -------------------------------------------------------------
>
> Key: ARROW-15064
> URL: https://issues.apache.org/jira/browse/ARROW-15064
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: David Li
> Priority: Major
>
> As a follow up to ARROW-14095, we could try to speed up an internal function
> in the CSV writer that currently scans all unquoted values. See
> [https://github.com/apache/arrow/pull/11849#discussion_r764278957]
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