milesgranger commented on code in PR #14574:
URL: https://github.com/apache/arrow/pull/14574#discussion_r1020278846
##########
python/pyarrow/parquet/core.py:
##########
@@ -3423,16 +3427,22 @@ def write_metadata(schema, where,
metadata_collector=None, **kwargs):
... table.schema, 'dataset_metadata/_metadata',
... metadata_collector=metadata_collector)
"""
- writer = ParquetWriter(where, schema, **kwargs)
+ filesystem, where = _resolve_filesystem_and_path(where, filesystem)
+
+ writer = ParquetWriter(where, schema, filesystem, **kwargs)
writer.close()
if metadata_collector is not None:
# ParquetWriter doesn't expose the metadata until it's written. Write
# it and read it again.
- metadata = read_metadata(where)
+ metadata = read_metadata(where, filesystem=filesystem)
for m in metadata_collector:
metadata.append_row_groups(m)
- metadata.write_metadata_file(where)
+ file_ctx = nullcontext()
+ if filesystem is not None:
+ file_ctx = where = filesystem.open_output_stream(where)
+ with file_ctx:
+ metadata.write_metadata_file(where)
Review Comment:
Didn't work out of the box with file-like, but some small modifications for
setting cursor back after reading before re-writing seems to work okay.
https://github.com/apache/arrow/pull/14574/commits/54dd6415189ae8fe475e8965f949130b904065d1
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