SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function UUIDToNum (children 1) ExpressionList (children 2) Function toUUID (children 1) ExpressionList (children 1) Literal \'00112233-4455-6677-8899-aabbccddeeff\' Literal UInt64_3