DO (7) - Linux Man Pages
DO: execute an anonymous code block
DO - execute an anonymous code block
DO [ LANGUAGE lang_name ] code
DO executes an anonymous code block, or in other words a transient anonymous function in a procedural language.
The code block is treated as though it were the body of a function with no parameters, returning void. It is parsed and executed a single time.
- The procedural language code to be executed. This must be specified as a string literal, just as in CREATE FUNCTION. Use of a dollar-quoted literal is recommended.
- The name of the procedural language the code is written in. If omitted, the default is plpgsql.
The procedural language to be used must already have been installed into the current database by means of CREATE LANGUAGE. plpgsql is installed by default, but other languages are not.
Grant all privileges on all views in schema public to role webuser:
DO $$DECLARE r record; BEGIN FOR r IN SELECT table_schema, table_name FROM information_schema.tables WHERE table_type = 'VIEW' AND table_schema = 'public' LOOP EXECUTE 'GRANT ALL ON ' || quote_ident(r.table_schema) || '.' || quote_ident(r.table_name) || ' TO webuser'; END LOOP; END$$;
SEE ALSOCREATE LANGUAGE (CREATE_LANGUAGE(7))