[GitHub] [doris] jackwener commented on pull request #11073: [enhance](nereids): use optional for combine()

[GitBox <gi...@apache.org>]

jackwener commented on PR #11073:
URL: https://github.com/apache/doris/pull/11073#issuecomment-1192107867

   I don't think so, because this function is for combine expression by use `And` or `Or`.
   Empty List is an abnormal input, it's invalid by using `LiteralTrue` as result.
   And `LiteralTrue` defeat the intent of this function. We want to combine but return a `LiteralTrue`, it's strange.
   


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