Re: [I] PyArrow: RuntimeError: AppendRowGroups requires equal schemas when writing _metadata file [arrow]

["KernelA (via GitHub)" <gi...@apache.org>]

KernelA commented on issue #31678:
URL: https://github.com/apache/arrow/issues/31678#issuecomment-1997066318

   I have a similar issue.
   
   pyarrow 14.0.2
   ```
     parquet.write_metadata(
     File ".../lib/python3.9/site-packages/pyarrow/parquet/core.py", line 3589, in write_metadata
       metadata.append_row_groups(m)
     File "pyarrow/_parquet.pyx", line 807, in pyarrow._parquet.FileMetaData.append_row_groups
   RuntimeError: AppendRowGroups requires equal schemas.
   The two columns with index 0 differ.
   column descriptor = {
     name: session_num,
     path: session_num,
     physical_type: INT64,
     converted_type: UINT_64,
     logical_type: Int(bitWidth=64, isSigned=false),
     max_definition_level: 0,
     max_repetition_level: 0,
   }
   column descriptor = {
     name: session_num,
     path: session_num,
     physical_type: INT64,
     converted_type: UINT_64,
     logical_type: Int(bitWidth=64, isSigned=false),
     max_definition_level: 1,
     max_repetition_level: 0,
   }
   ```
   
   All partitions have equal schemas. Example are taken from https://arrow.apache.org/docs/14.0/python/parquet.html#writing-metadata-and-common-metadata-files
   


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