Wes McKinney created ARROW-6077:
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Summary: [C++][Parquet] Build logical schema tree mapping Arrow
fields to Parquet schema levels
Key: ARROW-6077
URL: https://issues.apache.org/jira/browse/ARROW-6077
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Wes McKinney
Fix For: 1.0.0
In several places in cpp/src/parquet/arrow, the {{FromParquetSchema}} function
is used to construct fields using a filtered "view" of the Parquet schema. This
is a hack caused by the lack of some kind of a "schema tree" which maps Parquet
concepts to Arrow {{Field}} objects.
One manifestation of this issue is that I was unable to implement dictionary
encoded subfields in cases like {{list<string>}}, where you want the inner
field to be dictionary-encoded.
Patch forthcoming
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