Yesh created ARROW-13991:
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Summary: [C++][Dataset] - Dataset write to accept mask array to
include/exclude rows
Key: ARROW-13991
URL: https://issues.apache.org/jira/browse/ARROW-13991
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Yesh
Currently filesystem union datset is built out using individual in-memory
tables. Prior to building out these tables into union dataset a complex filter
step has already determined the rows to excluded/included via a mask array. The
ask is for this mask/array to be incorporated into writer side of of the union
dataset or fragments to eliminate or include rows in final file.
This ask if incorporated eliminates an additional step in the application to
filter out rows in a table.
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