pgsql.cc 提供对 postgresql.org 官网内容的中文翻译，由 Pigsty 团队维护。
Alibaba Cloud · ApsaraDB RDS for PostgreSQL · PostgreSQL 18
Edition-limited: standard=4.0.5, yitian=无
Official source is explicitly incomplete or not attributable to a complete per-major allowlist; absent rows remain NULL.