By default, GBase 8a does not accept Chinese characters for database, table, or column names. To enable this, you must turn on a specific system parameter — gcluster_extend_ident . The Parameter Name : gcluster_extend_ident Default : 0 (disabled) Values : 1 or ON Effect : Allows Chinese characters in identifier names. Database names can contain up to 48 Chinese characters, and table names up to 21 . Why It's Disabled by Default This is not a technical limitation but a deliberate design choice that prioritizes stability, maintainability, and global compatibility. Key Reasons Character set and collation complexity : Chinese characters involve UTF8, GBK, UTF8MB4, etc. Enabling them means every metadata operation, privilege check, SQL parse, and distributed execution plan must handle non‑ASCII identifiers correctly — significantly increasing internal complexity.…