findepi commented on issue #13408: URL: https://github.com/apache/datafusion/issues/13408#issuecomment-3368478752
at dbt, we also had a problem of hard-to-provide test coverage for Utf8, Utf8View. A `varchar` can be one of them, but the code (eg UDFs) ultimately needs to accept both what we ended up doing is fuzzing in SLT tests. At the test start we generate a random number. Then every string literal is either Utf8, Utf8View or LargeUtf8 -- deterministically based on its value and this random number. This helped identify many places too rigid or with missing coercion logic (often not only string related), while still allowing us to reproduce any test failures observed on CI. -- 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]
