A node's problems on a database type: a pattern that isn't a literal unless on Snowflake, when no type is known too (PLAN §11.14); a Pivot or an Explode Array where it can't run (§11.12, §11.20); % or _ given to a pattern, on a database with no default LIKE escape character (hasNoLikeEscape, §11.11), as `` is refused everywhere. None for another type.