RESERVED_WORDS

Words that Cassandra 4.1 or ScyllaDB 2026.1 reject as a bare identifier. Every word in the keyword appendix of either grammar was tried as a bare column name in CREATE TABLE against both databases (GH #188); this is the union of the ones that failed (e.g. token, order, default), plus the documented reserved keywords that happened to parse in those versions (mbean, mbeans). Unreserved keywords such as timestamp, type, key, ttl, date or count are deliberately absent: they work bare, so their DDL stays byte-for-byte unchanged.