Add collations to information_schema.usage_privileges

This is faked information like for domains.

diff --git a/doc/src/sgml/information_schema.sgml b/doc/src/sgml/information_schema.sgml
index aa6f852a8a3f7ad11586f5726e758a2b9cd65786..eba3a0a25da394087c0813bd886aaba5f91ecfc3 100644 (file)
--- a/doc/src/sgml/information_schema.sgml
+++ b/doc/src/sgml/information_schema.sgml
@@ -3560,7 +3560,7 @@ ORDER BY c.ordinal_position;
      
       object_type
       character_data
-      DOMAIN or FOREIGN DATA WRAPPER or FOREIGN SERVER
+      COLLATION or DOMAIN or FOREIGN DATA WRAPPER or FOREIGN SERVER
      
 
      
@@ -5497,15 +5497,15 @@ ORDER BY c.ordinal_position;
    USAGE privileges granted on various kinds of
    objects to a currently enabled role or by a currently enabled role.
    In PostgreSQL, this currently applies to
-   domains, foreign-data wrappers, and foreign servers.  There is one
+   collations, domains, foreign-data wrappers, and foreign servers.  There is one
    row for each combination of object, grantor, and grantee.
   
 
   
-   Since domains do not have real privileges
+   Since collations and domains do not have real privileges
    in PostgreSQL, this view shows implicit
    non-grantable USAGE privileges granted by the
-   owner to PUBLIC for all domains.  The other
+   owner to PUBLIC for all collations and domains.  The other
    object types, however, show real privileges.
   
 
@@ -5556,7 +5556,7 @@ ORDER BY c.ordinal_position;
      
       object_type
       character_data
-      DOMAIN or FOREIGN DATA WRAPPER or FOREIGN SERVER
+      COLLATION or DOMAIN or FOREIGN DATA WRAPPER or FOREIGN SERVER
      
 
      

diff --git a/src/backend/catalog/information_schema.sql b/src/backend/catalog/information_schema.sql
index e81a3bb40dfbc5013cb47924367dd18762ca2afd..1c47d81ba8cac38417fb1b3b853183e1725d5c4c 100644 (file)
--- a/src/backend/catalog/information_schema.sql
+++ b/src/backend/catalog/information_schema.sql
@@ -2019,6 +2019,27 @@ GRANT SELECT ON triggers TO PUBLIC;
 
 CREATE VIEW usage_privileges AS
 
+    /* collations */
+    -- Collations have no real privileges, so we represent all collations with implicit usage privilege here.
+    SELECT CAST(u.rolname AS sql_identifier) AS grantor,
+           CAST('PUBLIC' AS sql_identifier) AS grantee,
+           CAST(current_database() AS sql_identifier) AS object_catalog,
+           CAST(n.nspname AS sql_identifier) AS object_schema,
+           CAST(c.collname AS sql_identifier) AS object_name,
+           CAST('COLLATION' AS character_data) AS object_type,
+           CAST('USAGE' AS character_data) AS privilege_type,
+           CAST('NO' AS yes_or_no) AS is_grantable
+
+    FROM pg_authid u,
+         pg_namespace n,
+         pg_collation c
+
+    WHERE u.oid = c.collowner
+          AND c.collnamespace = n.oid
+          AND c.collencoding = (SELECT encoding FROM pg_catalog.pg_database WHERE datname = pg_catalog.current_database())
+
+    UNION ALL
+
     /* domains */
     -- Domains have no real privileges, so we represent all domains with implicit usage privilege here.
     SELECT CAST(u.rolname AS sql_identifier) AS grantor,