This topic summarizes reserved keywords in database name, account name, and schema name for RDS for PostgreSQL. These keywords cannot be used when naming a database, account, or schema.

tip

Only lowercase keywords are verified; keywords in all uppercase or mixed uppercase are allowed.

Reserved objects

Keywords

Reserved objects	Keywords
Account name, database name, and schema name	all，analyse，analyze，and，any，array，as，asc，asymmetric，authorization，binary，both，case，cast，check，collate，collation，column，concurrently，constraint，create，cross，current_catalog，current_date，current_role，current_schema，current_time，current_timestamp，current_user，default，deferrable，desc，distinct，do，else，end，except，false，fetch，for，foreign，freeze，from，full，grant，group，having，ilike，in，initially，inner，intersect，into，is，isnull，join，lateral，leading，left，like，limit，localtime，localtimestamp，natural，not，notnull，null，offset，on，only，or，order，outer，overlaps，placing，primary，references，returning，right，select，session_user，similar，some，symmetric，table，tablesample，then，to，trailing，true，union，unique，user，using，variadic，verbose，when，where，window，with
Account name	byte_rds_proxy，byte_rds_repl，ccp_monitoring，dbw_admin，mpp_op_account，postgres，primaryuser，rds_shard
Database name	byte_mppdb，information_schema，postgres，template0，template1
Schema name	columnar，columnar_internal，information_schema，pg_catalog

Last updated: 2025.11.17 16:15:13

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