Adding Grantor Information in sys.babelfish_schema_permissions catalog

contrib/babelfishpg_tsql/sql/ownership.sql

@@ -26,7 +26,7 @@ CREATE TABLE sys.babelfish_schema_permissions (
   object_type CHAR(1) NOT NULL COLLATE sys.database_default,
   function_args TEXT COLLATE "C",
   grantor sys.NVARCHAR(128) COLLATE sys.database_default,
-  PRIMARY KEY(dbid, schema_name, object_name, grantee, object_type)
+  PRIMARY KEY(dbid, schema_name, object_name, permission, grantee, object_type, grantor)
 );
 
 -- BABELFISH_FUNCTION_EXT

contrib/babelfishpg_tsql/sql/upgrades/babelfishpg_tsql--5.2.0--5.3.0.sql

@@ -63,6 +63,13 @@ $$
     end;
 $$;
 
+-- Babelfish catalog tables are marked system tables and postgres does not normally allow modification on
+-- system tables so need to temporarily set allow_system_table_mods to update the primary key of babelfish_function_ext.
+SET allow_system_table_mods = ON;
+ALTER TABLE sys.babelfish_schema_permissions DROP CONSTRAINT babelfish_schema_permissions_pkey;
+ALTER TABLE sys.babelfish_schema_permissions ADD CONSTRAINT babelfish_schema_permissions_pkey PRIMARY KEY(dbid, schema_name, object_name, permission, grantee, object_type, grantor);
+RESET allow_system_table_mods;
+
 -- Please add your SQLs here
 /*
  * Note: These SQL statements may get executed multiple times specially when some features get backpatched.