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https://issues.apache.org/jira/browse/FLINK-11899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jingsong Lee updated FLINK-11899:
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Description:
Parquet ColumnarRow split reader is introduced to read parquet data in batches.
When returning each row of data, instead of actually retrieving each field, we
use BaseRow's abstraction to return a Columnar Row-like view.
This will greatly improve the downstream filtered scenarios, so that there is
no need to access redundant fields on the filtered data.
was:
VectorizedParquetInputFormat is introduced to read parquet data in batches.
When returning each row of data, instead of actually retrieving each field, we
use BaseRow's abstraction to return a Columnar Row-like view.
This will greatly improve the downstream filtered scenarios, so that there is
no need to access redundant fields on the filtered data.
> Introduce parquet ColumnarRow split reader
> ------------------------------------------
>
> Key: FLINK-11899
> URL: https://issues.apache.org/jira/browse/FLINK-11899
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Runtime
> Reporter: Jingsong Lee
> Assignee: Jingsong Lee
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Parquet ColumnarRow split reader is introduced to read parquet data in
> batches.
> When returning each row of data, instead of actually retrieving each field,
> we use BaseRow's abstraction to return a Columnar Row-like view.
> This will greatly improve the downstream filtered scenarios, so that there is
> no need to access redundant fields on the filtered data.
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