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https://issues.apache.org/jira/browse/PARQUET-2423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jinpeng Zhou updated PARQUET-2423:
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Description:
Currently each invocation of SkipRecords() for non-repeated fields will create
a brand new buffer object[1]. I think it probably worth keep the buffer object
alive and just resize it for each skip, as the buffer is just a bitmap for
records.
[1]https://github.com/apache/arrow/blob/main/cpp/src/parquet/column_reader.cc#L1482
was:
Currently each invocation of SkipRecords() for non-repeated fields will create
a brand new buffer object[1]. I think it probably worth keep the buffer object
alive and just resize it for each skip, as the buffer is just a bitmap (i.e.,
should remain quite small even we don't free its memory after skip).
[1]https://github.com/apache/arrow/blob/main/cpp/src/parquet/column_reader.cc#L1482
> Avoid allocating buffer obeject in RecordReader's SkipRecords
> -------------------------------------------------------------
>
> Key: PARQUET-2423
> URL: https://issues.apache.org/jira/browse/PARQUET-2423
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp
> Reporter: Jinpeng Zhou
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Currently each invocation of SkipRecords() for non-repeated fields will
> create a brand new buffer object[1]. I think it probably worth keep the
> buffer object alive and just resize it for each skip, as the buffer is just a
> bitmap for records.
> [1]https://github.com/apache/arrow/blob/main/cpp/src/parquet/column_reader.cc#L1482
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