coderfender opened a new issue, #2233:
URL: https://github.com/apache/datafusion-comet/issues/2233
### Describe the bug
Spark's coalesce operation performs lazy evaluation from left to right and
returns the first non null value . In case of comet, the expressions are
evaluated in parallel and throw an error in case one of them fails due to an
exception (Example : Divide by Zero , Arithmetic Overflow) .
### Steps to reproduce
A simple `select coalesce(100, 1/0) from tbl` should be able to reproduce
the error
### Expected behavior
Match Spark's behavior i.e lazy evaluation
### Additional context
Idea is to convert coalesce into a case expression to lazily evaluate
expressions from left to right and return first non NULL value .
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