private bool Equals(CaseExpression other)
=> (Operand == null
? other.Operand == null
: Operand.Equals(other.Operand)) &&
WhenClauses.SequenceEqual(other.WhenClauses, EqualityComparer <CaseWhenClause> .Default) &&
(ElseResult == null
? other.ElseResult == null
: ElseResult.Equals(other.ElseResult));
