Weston Pace created ARROW-16475: ----------------------------------- Summary: [Python] Publically expose Expression._call Key: ARROW-16475 URL: https://issues.apache.org/jira/browse/ARROW-16475 Project: Apache Arrow Issue Type: Improvement Components: Python Reporter: Weston Pace
When writing a projection expression I can write something clean when using the builtin functions: {noformat} dataset.to_table(columns={'projected': pc.ascii_upper(ds.field('name'))}) {noformat} However, if I am using a custom function (UDF) then there isn't a great solution today that I can find. The best I can come up with is: {noformat} dataset.to_table(columns={'projected': pc.Expression._call('my_udf', [ds.field('name')])}) {noformat} I'd think one approach could be: {noformat} dataset.to_table(columns={'projected': pc.call('my_udf', [ds.field('name')])}) {noformat} However, I'm open to other suggestions as well. -- This message was sent by Atlassian Jira (v8.20.7#820007)