4 The catalog pg_extension stores information about the installed
5 extensions. See Section 36.17 for details about extensions.
7 Table 52.22. pg_extension Columns
21 extowner oid (references pg_authid.oid)
23 Owner of the extension
25 extnamespace oid (references pg_namespace.oid)
27 Schema containing the extension's exported objects
31 True if extension can be relocated to another schema
35 Version name for the extension
37 extconfig oid[] (references pg_class.oid)
39 Array of regclass OIDs for the extension's configuration table(s), or
44 Array of WHERE-clause filter conditions for the extension's
45 configuration table(s), or NULL if none
47 Note that unlike most catalogs with a “namespace” column, extnamespace
48 is not meant to imply that the extension belongs to that schema.
49 Extension names are never schema-qualified. Rather, extnamespace
50 indicates the schema that contains most or all of the extension's
51 objects. If extrelocatable is true, then this schema must in fact
52 contain all schema-qualifiable objects belonging to the extension.