Describe the enhancement requested
An Arrow array doesn't have statistics but Arrow array source such as Parquet column may have statistics.
We can get the source statistics via source reader such as parquet::ColumnChunkMetaData::statistics() (parquet::ParquetFileReader::metadata()->RowGroup(X)->ColumnChunk(Y)->statistics()) but can't get read Arrow array (e.g. parquet::arrow::FileReader::ReadColumn()).
How about adding arrow::ArrayStatistics or something and attaching source statistics to arrow::Array?
Component(s)
C++
Describe the enhancement requested
An Arrow array doesn't have statistics but Arrow array source such as Parquet column may have statistics.
We can get the source statistics via source reader such as
parquet::ColumnChunkMetaData::statistics()(parquet::ParquetFileReader::metadata()->RowGroup(X)->ColumnChunk(Y)->statistics()) but can't get read Arrow array (e.g.parquet::arrow::FileReader::ReadColumn()).How about adding
arrow::ArrayStatisticsor something and attaching source statistics toarrow::Array?Component(s)
C++