[Rust] [Parquet] Plain encoded boolean column chunks limited to 2048 values

[asfimport]

encoding::PlainEncoder::new creates a BitWriter with 256 bytes of storage, which limits the data page size that can be used.

I suggest that in

impl Encoder<BoolType> for PlainEncoder<BoolType>

the return value of put_value is tested and the BitWriter flushed+cleared whenever it runs out of space.

Reporter: Simon Jones

_{Note: This issue was originally created as ARROW-6189. Please see the migration documentation for further details.}

[asfimport]

Andrew Lamb / @alamb:
Migrated to github: apache/arrow-rs#48