samuelcolvin opened a new pull request, #11307:
URL: https://github.com/apache/datafusion/pull/11307

   ## Which issue does this PR close?
   
   fix #11306.
   
   ## Rationale for this change
   
   See https://github.com/datafusion-contrib/datafusion-functions-json/pull/26 
and #11306
   
   ## What changes are included in this PR?
   
   Remove the block on aliases as prediates, add test.
   
   ## Are these changes tested?
   
   Yes, the only wait I could get a failure without this change.
   
   ## Are there any user-facing changes?
   
   AFAIK, we just allow something that should be allowed.
   
   **NOTE:** Aliases were already allowed in binary expressions, just not as 
full predicates, so this restriction seemed unusually strict. Also the SQL 
parser wouldn't allow me to build such an expression directly in SQL, e.g. 
`from x where (y = z) as the_alias` was invalid SQL.
   


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