Joris Van den Bossche created ARROW-18087: ---------------------------------------------
Summary: [C++] RecordBatch::Equals ignores field names Key: ARROW-18087 URL: https://issues.apache.org/jira/browse/ARROW-18087 Project: Apache Arrow Issue Type: Bug Components: C++ Reporter: Joris Van den Bossche The {{RecordBatch::Equals}} method only checks the equality of the schema of both batches if {{check_metadata=True}}, with a result that it doesn't actually check the schema (eg field names) by default. Python illustration: {code} In [3]: batch1 = pa.record_batch(pd.DataFrame({'a': [1, 2, 3]})) In [4]: batch2 = pa.record_batch(pd.DataFrame({'b': [1, 2, 3]})) In [5]: batch1.equals(batch2) Out[5]: True In [6]: batch1.equals(batch2, check_metadata=True) Out[6]: False {code} My expectation is that RecordBatch equality always requires equal field names (as Table::Equals does). And the {{check_metadata}} keyword should only control whether the metadata of the schema is considered (as the documentation also says), not whether the schema is checked at all. -- This message was sent by Atlassian Jira (v8.20.10#820010)