You can use `A IS NOT DISTINCT FROM B` to compare if you want to treat NULLs as equal instead of unknown. Unfortunately it is poorly supported. See http://mod

You can use `A IS NOT DISTINCT FROM B` to compare if you want to treat NULLs as equal instead of unknown. Unfortunately it is poorly supported. See http://modern-sql.com/feature/is-distinct-from http://modern-sql.com/feature/is-distinct-from