It would also bloat the PostgreSQL codebase which crappy syntaxes which they may have to support for many years in the future. The PostgreSQL team already merg

It would also bloat the PostgreSQL codebase which crappy syntaxes which they may have to support for many years in the future. The PostgreSQL team already merges features which are not yet perfect (see materialized views in 9.3, JSON in 9.2, and replication in 9.0 for examples), but they will not do that if they think they will have to break the API in a near future.