v.20.6Bug Fix
Fix Exception Handling for Codec Delta and DoubleDelta in Non-Fixed Width Types
When using codecDeltaorDoubleDeltawith non fixed width types, exception with codeLOGICAL_ERRORwas returned instead of exception with codeBAD_ARGUMENTS(we ensure that exceptions with code logical error never happen). This fixes #12110. #12308 (alexey-milovidov).