Commits on Oct 27, 2023

1. tree: don't resolve expressions with wildcard types …

   There are various wildcard types that are used during type-checking,
   but which are not valid during execution. Previously, we only checked
   for `types.Any` in several places, but there are other wildcard types
   like `types.AnyEnum` with similar properties. This could lead to an
   internal panic during execution when this invalid type was resolved.
   This patch adds a new method `types.T.IsWildcardType()` that checks
   for all wildcard types, to be used during type-checking.
   
   Fixes cockroachdb#83496
   
   Release note (bug fix): Fixed a bug that has existed since before v22.2
   which could cause an internal error during distributed execution for an
   expression like `CASE` that requires its inputs to be the same type
   with all `NULL` inputs.

   

   DrewKimball committed Oct 27, 2023
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