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Posted to dev@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/10/02 20:10:00 UTC

[jira] [Created] (ARROW-3410) [C++] Streaming CSV reader interface for memory-constrainted environments

Wes McKinney created ARROW-3410:
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             Summary: [C++] Streaming CSV reader interface for memory-constrainted environments
                 Key: ARROW-3410
                 URL: https://issues.apache.org/jira/browse/ARROW-3410
             Project: Apache Arrow
          Issue Type: New Feature
          Components: C++
            Reporter: Wes McKinney
             Fix For: 0.12.0


CSV reads are currently all-or-nothing. If the results of parsing a CSV file do not fit into memory, this can be a problem. I propose to define a streaming {{RecordBatchReader}} interface so that the record batches produced by reading can be written out immediately to a stream on disk, to be memory mapped later



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