Richard Yu created SPARK-43815: ---------------------------------- Summary: Add SQL functions to_varchar and extend to_char functionality Key: SPARK-43815 URL: https://issues.apache.org/jira/browse/SPARK-43815 Project: Spark Issue Type: New Feature Components: SQL Affects Versions: 3.4.1 Reporter: Richard Yu
Today, users who have SQL engines which support ```to_varchar``` needs to change such function invocations to ```to_char``` when migrating to Apache Spark. To help minimize the amount of changes which users need to make, we introduce a ```to_varchar``` function alias for ```to_char```. Additionally, we extend ```to_char()``` such that when the first argument of the function is: * date or timestamp: ```to_char``` is equivalent to ```date_format(expr, format)``` * base64: equivalent to ```base64()``` * hex: equivalent to ```hex()``` * UTF-8: equivalent to ```decode(<expr>, 'UTF-8')``` Additioally, we add support for the ```timediff``` alias for ```timestampdiff```. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org