[FEATURE-REQUEST] Support BYTE_ARRAY Decimal format about parquetviewer HOT 3 CLOSED

I should update that this problem happens on "BYTE_ARRAY" type of decimal , which is generated by Apache Nifi, not "FIXED_LEN_BYTE_ARRAY" which is generated by pyArrow.
On standart FIXED_LEN_BYTE_ARRAY there seems no problem, but if size is not set the jibberish characters appear.

On left hand metadata from parquet file generated by Nifi, on right hand the one generated by pyArrow (which I was going to share non important data, but pyarrow converts to fixed_len_byte_array which parquet viewer shows fine, so problem may seem to be parquet files with decimal generated by Nifi with Parquet 1.0 writer)

from parquetviewer.

Could you also share a sample file please?

from parquetviewer.

I think these types of decimal are now supported in the parquet-dotnet library: aloneguid/parquet-dotnet#166

Since there is no sample file I'm not able to validate this but this ticket has been open for a long time so I'm closing it out. If anyone could confirm it works or provide a sample file that doesn't work please feel free to comment or reopen this issue.

from parquetviewer.