GS_LOGICAL_DATABASE

GS_LOGICAL_DATABASE records information about available databases.

**Table 1** GS_LOGICAL_DATABASE columns
Column	Type	Description
datname	name	Database name.
datid	oid	Database OID.
csnmin	bigint	CSN when a tuple is inserted.
csnmax	bigint	CSN when a tuple is updated or deleted.
createtime	timestamp with time zone	Timestamp when a tuple is inserted.
originid	integer	Source identifier of a tuple.
datdba	oid	Owner of the database, usually the user who created it.
encoding	integer	Character encoding for the database.
datcollate	name	Sequence used by the database.
datctype	name	Character type used by the database.
dattablespace	oid	Default tablespace of the database.
datcompatibility	name	Database compatibility mode. Currently, five compatibility modes are supported: A, B, C, M, and PG, indicating compatibilities with Oracle Database, MySQL, Teradata, M-compatible and Postgres databases, respectively.
dattimezone	name	Database time zone. The default is PRC.