neilconway opened a new issue, #22088: URL: https://github.com/apache/datafusion/issues/22088
### Describe the bug Expressions from VALUES are always considered nullable, which (1) inhibits some optimization opportunities, at least in theory (2) is inconsistent with other similar situations where we do nullability analysis; see example. ### To Reproduce I think the behavior here is inconsistent: ``` > DESCRIBE SELECT 1 FROM VALUES (5); +-------------+-----------+-------------+ | column_name | data_type | is_nullable | +-------------+-----------+-------------+ | Int64(1) | Int64 | NO | +-------------+-----------+-------------+ 1 row(s) fetched. Elapsed 0.002 seconds. > DESCRIBE VALUES (5); +-------------+-----------+-------------+ | column_name | data_type | is_nullable | +-------------+-----------+-------------+ | column1 | Int64 | YES | +-------------+-----------+-------------+ 1 row(s) fetched. Elapsed 0.002 seconds. ``` ### Expected behavior _No response_ ### Additional context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
