Gbase 8C system table PG_ collation

pg_collation The system table describes the available collations , Essentially from a SQL Names map to operating system local categories .

name	type	quote	describe
oid	oid		Row identifier （ Hidden attribute , Must be explicitly selected to display ）
collname	name		Collation name （ Unique in every namespace and code ）
collnamespace	oid	pg_namespace.oid	Containing the namespace of the collation OID
collowner	oid	pg_authid.oid	The owner of the collation
collprovider	char		Provider of collation ：d = Database default , c = libc, i = icu
collencoding	int4		The codes that the collation can apply ,-1 Indicates that it can be used for any encoding
collcollate	name		Of the collation object LC_COLLATE
collctype	name		Of the collation object LC_CTYPE
collversion	text		Provider specific version of collation . This is recorded when the collation is created , Then check when using the collation , To detect changes in the collation definition that may cause data corruption .