Michael Chirico created ARROW-7662: -------------------------------------- Summary: Support for auto-inferring list column->array in write_parquet Key: ARROW-7662 URL: https://issues.apache.org/jira/browse/ARROW-7662 Project: Apache Arrow Issue Type: Improvement Components: R Reporter: Michael Chirico
{code:r} DF = data.frame(a = 1:10) DF$b = as.list(DF$a) arrow::write_parquet(DF, 'test.parquet') # Error in Table__from_dots(dots, schema) : cannot infer type from data {code} This appears to be supported naturally already in Python: {code:python} import pandas as pd pd.DataFrame({'a': [1, 2, 3], 'b': [[1, 2], [3, 4], [5, 6]]}).to_parquet('test.parquet') {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)