diff --git a/sql/aiven_extras--1.1.11--1.1.12.sql b/sql/aiven_extras--1.1.11--1.1.12.sql new file mode 100644 index 0000000..f6a5eb1 --- /dev/null +++ b/sql/aiven_extras--1.1.11--1.1.12.sql @@ -0,0 +1,605 @@ +DO LANGUAGE plpgsql +$OUTER$ +DECLARE + my_schema pg_catalog.TEXT := pg_catalog.quote_ident(pg_catalog.current_schema()); + old_path pg_catalog.TEXT := pg_catalog.current_setting('search_path'); +BEGIN + +-- for safety, transiently set search_path to just pg_catalog+pg_temp +PERFORM pg_catalog.set_config('search_path', 'pg_catalog, pg_temp', true); + + +PERFORM 1 + FROM pg_catalog.pg_type AS t JOIN pg_catalog.pg_roles AS r ON (r.oid = t.typowner) + WHERE r.rolsuper + AND t.typnamespace = 'aiven_extras'::regnamespace + AND t.typname = 'aiven_pg_subscription'; +IF NOT FOUND THEN + CREATE TYPE aiven_extras.aiven_pg_subscription AS ( + subdbid OID, + subname NAME, + subowner OID, + subenabled BOOLEAN, + subconninfo TEXT, + subslotname NAME, + subsynccommit TEXT, + subpublications TEXT[] + ); +END IF; + +PERFORM 1 + FROM pg_catalog.pg_type AS t JOIN pg_catalog.pg_roles AS r ON (r.oid = t.typowner) + WHERE r.rolsuper + AND typnamespace = 'aiven_extras'::regnamespace + AND typname = 'aiven_pg_stat_replication'; +IF NOT FOUND THEN + CREATE TYPE aiven_extras.aiven_pg_stat_replication AS ( + pid INT, + usesysid OID, + usename NAME, + application_name TEXT, + client_addr INET, + client_hostname TEXT, + client_port INT, + backend_start TIMESTAMP WITH TIME ZONE, + backend_xmin XID, + state TEXT, + sent_lsn PG_LSN, + write_lsn PG_LSN, + flush_lsn PG_LSN, + replay_lsn PG_LSN, + write_lag INTERVAL, + flush_lag INTERVAL, + replay_lag INTERVAL, + sync_priority INTEGER, + sync_state TEXT + ); +END IF; + + +DROP FUNCTION IF EXISTS aiven_extras.dblink_record_execute(TEXT, TEXT); +CREATE FUNCTION aiven_extras.dblink_record_execute(TEXT, TEXT) +RETURNS SETOF record LANGUAGE c +PARALLEL RESTRICTED STRICT +AS '$libdir/dblink', $$dblink_record$$; + + +DROP FUNCTION IF EXISTS aiven_extras.dblink_slot_create_or_drop(TEXT, TEXT, TEXT); +CREATE FUNCTION aiven_extras.dblink_slot_create_or_drop( + arg_connection_string TEXT, + arg_slot_name TEXT, + arg_action TEXT +) +RETURNS VOID LANGUAGE plpgsql +SET search_path = pg_catalog, aiven_extras +AS $$ +DECLARE + l_clear_search_path TEXT := 'SET search_path TO pg_catalog, pg_temp;'; + l_slot_existence_query TEXT := pg_catalog.format('SELECT TRUE FROM pg_catalog.pg_replication_slots WHERE slot_name OPERATOR(pg_catalog.=) %L', arg_slot_name); + l_slot_action_query TEXT; + l_slot_exists BOOLEAN; +BEGIN + SELECT res INTO l_slot_exists + FROM aiven_extras.dblink_record_execute( + arg_connection_string, + l_clear_search_path || l_slot_existence_query + ) AS d (res BOOLEAN); + IF arg_action = 'create' AND l_slot_exists IS NOT TRUE THEN + l_slot_action_query := pg_catalog.format('SELECT TRUE FROM pg_catalog.pg_create_logical_replication_slot(%L, %L, FALSE)', arg_slot_name, 'pgoutput'); + ELSIF arg_action = 'drop' AND l_slot_exists IS TRUE THEN + l_slot_action_query := pg_catalog.format('SELECT TRUE FROM pg_catalog.pg_drop_replication_slot(%L)', arg_slot_name); + END IF; + IF l_slot_action_query IS NOT NULL THEN + PERFORM 1 + FROM aiven_extras.dblink_record_execute( + arg_connection_string, + l_clear_search_path || l_slot_action_query + ) AS d (res BOOLEAN); + END IF; +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.pg_create_subscription(TEXT, TEXT, TEXT, TEXT, BOOLEAN, BOOLEAN); +CREATE FUNCTION aiven_extras.pg_create_subscription( + arg_subscription_name TEXT, + arg_connection_string TEXT, + arg_publication_name TEXT, + arg_slot_name TEXT, + arg_slot_create BOOLEAN = FALSE, + arg_copy_data BOOLEAN = TRUE +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + IF (arg_slot_create IS TRUE) THEN + PERFORM aiven_extras.dblink_slot_create_or_drop(arg_connection_string, arg_slot_name, 'create'); + END IF; + EXECUTE pg_catalog.format( + 'CREATE SUBSCRIPTION %I connection %L publication %I WITH (slot_name=%L, create_slot=FALSE, copy_data=%s)', + arg_subscription_name, arg_connection_string, arg_publication_name, arg_slot_name, arg_copy_data::TEXT); +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.pg_alter_subscription_disable(TEXT); +CREATE FUNCTION aiven_extras.pg_alter_subscription_disable( + arg_subscription_name TEXT +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + EXECUTE pg_catalog.format('ALTER SUBSCRIPTION %I DISABLE', arg_subscription_name); +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.pg_alter_subscription_enable(TEXT); +CREATE FUNCTION aiven_extras.pg_alter_subscription_enable( + arg_subscription_name TEXT +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + EXECUTE pg_catalog.format('ALTER SUBSCRIPTION %I ENABLE', arg_subscription_name); +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.pg_alter_subscription_refresh_publication(TEXT, BOOLEAN); +CREATE FUNCTION aiven_extras.pg_alter_subscription_refresh_publication( + arg_subscription_name TEXT, + arg_copy_data BOOLEAN = TRUE +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + PERFORM aiven_extras.dblink_record_execute( + pg_catalog.format('user=%L dbname=%L port=%L', current_user, pg_catalog.current_database(), (SELECT setting FROM pg_catalog.pg_settings WHERE name = 'port')), + pg_catalog.format('ALTER SUBSCRIPTION %I REFRESH PUBLICATION WITH (copy_data=%s)', arg_subscription_name, arg_copy_data::TEXT) + ); +END; +$$; + +DROP FUNCTION IF EXISTS aiven_extras.pg_drop_subscription(TEXT); +DROP FUNCTION IF EXISTS aiven_extras.pg_drop_subscription(TEXT, BOOLEAN); +CREATE FUNCTION aiven_extras.pg_drop_subscription( + arg_subscription_name TEXT, + arg_drop_repl_slot BOOLEAN = TRUE +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +DECLARE + l_slot_name TEXT; + l_subconninfo TEXT; +BEGIN + SELECT subslotname, subconninfo + INTO l_slot_name, l_subconninfo + FROM pg_catalog.pg_subscription + WHERE subname = arg_subscription_name; + IF l_slot_name IS NULL AND l_subconninfo IS NULL THEN + RAISE EXCEPTION 'No subscription found for name: %', arg_subscription_name; + END IF; + EXECUTE pg_catalog.format('ALTER SUBSCRIPTION %I DISABLE', arg_subscription_name); + EXECUTE pg_catalog.format('ALTER SUBSCRIPTION %I SET (slot_name = NONE)', arg_subscription_name); + EXECUTE pg_catalog.format('DROP SUBSCRIPTION %I', arg_subscription_name); + IF (arg_drop_repl_slot IS TRUE) THEN + PERFORM aiven_extras.dblink_slot_create_or_drop(l_subconninfo, l_slot_name, 'drop'); + END IF; +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.pg_create_publication_for_all_tables(TEXT, TEXT); +CREATE FUNCTION aiven_extras.pg_create_publication_for_all_tables( + arg_publication_name TEXT, + arg_publish TEXT +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + EXECUTE pg_catalog.format('CREATE PUBLICATION %I FOR ALL TABLES WITH (publish = %I)', arg_publication_name, arg_publish); + EXECUTE pg_catalog.format('ALTER PUBLICATION %I OWNER TO %I', arg_publication_name, session_user); +END; +$$; + +DROP FUNCTION IF EXISTS aiven_extras.pg_list_all_subscriptions(); +CREATE FUNCTION aiven_extras.pg_list_all_subscriptions() +RETURNS SETOF aiven_extras.aiven_pg_subscription LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN QUERY + SELECT subdbid, subname, subowner, subenabled, subconninfo, subslotname, subsynccommit, subpublications + FROM pg_catalog.pg_subscription; +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.session_replication_role(TEXT); +CREATE FUNCTION aiven_extras.session_replication_role( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('session_replication_role', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.auto_explain_load(); +CREATE FUNCTION aiven_extras.auto_explain_load() +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + LOAD 'auto_explain'; +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_auto_explain_log_analyze(TEXT); +CREATE FUNCTION aiven_extras.set_auto_explain_log_analyze( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('auto_explain.log_analyze', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_auto_explain_log_format(TEXT); +CREATE FUNCTION aiven_extras.set_auto_explain_log_format( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('auto_explain.log_format', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_auto_explain_log_min_duration(TEXT); +CREATE FUNCTION aiven_extras.set_auto_explain_log_min_duration( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('auto_explain.log_min_duration', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_auto_explain_log_timing(TEXT); +CREATE FUNCTION aiven_extras.set_auto_explain_log_timing( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('auto_explain.log_timing', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_auto_explain_log_buffers(TEXT); +CREATE FUNCTION aiven_extras.set_auto_explain_log_buffers( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('auto_explain.log_buffers', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_auto_explain_log_verbose(TEXT); +CREATE FUNCTION aiven_extras.set_auto_explain_log_verbose( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('auto_explain.log_verbose', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_auto_explain_log_nested_statements(TEXT); +CREATE FUNCTION aiven_extras.set_auto_explain_log_nested_statements( + arg_parameter TEXT +) +RETURNS TEXT LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN pg_catalog.set_config('auto_explain.log_nested_statements', arg_parameter, false); +END +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.claim_public_schema_ownership(); +CREATE FUNCTION aiven_extras.claim_public_schema_ownership() +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + EXECUTE pg_catalog.format('ALTER SCHEMA public OWNER TO %I', session_user); +END; +$$; + + +-- Temporarily clear out the view so we can replace the function behind it +CREATE OR REPLACE VIEW aiven_extras.pg_stat_replication AS + SELECT + NULL::INT AS pid, + NULL::OID AS usesysid, + NULL::NAME AS usename, + NULL::TEXT AS application_name, + NULL::INET AS client_addr, + NULL::TEXT AS client_hostname, + NULL::INT AS client_port, + NULL::TIMESTAMPTZ AS backend_start, + NULL::XID AS backend_xmin, + NULL::TEXT AS state, + NULL::PG_LSN AS sent_lsn, + NULL::PG_LSN AS write_lsn, + NULL::PG_LSN AS flush_lsn, + NULL::PG_LSN AS replay_lsn, + NULL::INTERVAL AS write_lag, + NULL::INTERVAL AS flush_lag, + NULL::INTERVAL AS replay_lag, + NULL::INTEGER AS sync_priority, + NULL::TEXT AS sync_state; + + +DROP FUNCTION IF EXISTS aiven_extras.pg_stat_replication_list(); +CREATE FUNCTION aiven_extras.pg_stat_replication_list() +RETURNS SETOF aiven_extras.aiven_pg_stat_replication LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + RETURN QUERY + SELECT pid, usesysid, usename, application_name, client_addr, client_hostname, client_port, + backend_start, backend_xmin, state, sent_lsn, write_lsn, flush_lsn, replay_lsn, write_lag, + flush_lag, replay_lag, sync_priority, sync_state + FROM pg_catalog.pg_stat_replication + WHERE usename = session_user; +END; +$$; + + +CREATE OR REPLACE VIEW aiven_extras.pg_stat_replication AS + SELECT pid, usesysid, usename, application_name, client_addr, client_hostname, client_port, + backend_start, backend_xmin, state, sent_lsn, write_lsn, flush_lsn, replay_lsn, write_lag, + flush_lag, replay_lag, sync_priority, sync_state + FROM aiven_extras.pg_stat_replication_list(); + + +DROP FUNCTION IF EXISTS aiven_extras.pg_create_publication(TEXT, TEXT, VARIADIC TEXT[]); +CREATE FUNCTION aiven_extras.pg_create_publication( + arg_publication_name TEXT, + arg_publish TEXT, + VARIADIC arg_tables TEXT[] DEFAULT ARRAY[]::TEXT[] +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +DECLARE + l_ident TEXT; + l_table_count INT; + l_tables_command TEXT; + l_parsed_ident TEXT[]; + l_parsed_arg_tables TEXT[]; +BEGIN + l_table_count = pg_catalog.array_length(arg_tables, 1); + IF l_table_count >= 1 + THEN + l_parsed_arg_tables = ARRAY[]::TEXT[]; + l_tables_command = 'CREATE PUBLICATION %I FOR TABLE '; + FOREACH l_ident IN ARRAY arg_tables LOOP + l_parsed_ident = parse_ident(l_ident); + ASSERT pg_catalog.array_length(l_parsed_ident, 1) <= 2, 'Only simple table names or tables qualified with schema names allowed'; + -- Make sure we pass in a simple list of identifiers, so separate the tables from parent schemas + IF pg_catalog.array_length(l_parsed_ident, 1) = 2 + THEN + l_tables_command = l_tables_command || '%I.%I, '; + ELSE + l_tables_command = l_tables_command || '%I, '; + END IF; + l_parsed_arg_tables = l_parsed_arg_tables || l_parsed_ident; + END LOOP; + -- Remove trailing comma and whitespace, add the rest + l_tables_command = pg_catalog.left(l_tables_command, -2) || ' WITH (publish = %I)'; + EXECUTE pg_catalog.format(l_tables_command, VARIADIC array[arg_publication_name] || l_parsed_arg_tables || arg_publish); + ELSE + EXECUTE pg_catalog.format('CREATE PUBLICATION %I WITH (publish = %I)', arg_publication_name, arg_publish); + END IF; + EXECUTE pg_catalog.format('ALTER PUBLICATION %I OWNER TO %I', arg_publication_name, session_user); +END; +$$; + + +DROP FUNCTION IF EXISTS aiven_extras.set_pgaudit_parameter(TEXT, TEXT, TEXT); +CREATE FUNCTION aiven_extras.set_pgaudit_parameter( + arg_parameter TEXT, + arg_database TEXT, + arg_value TEXT +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +BEGIN + IF COALESCE( + (SELECT usesuper + FROM pg_catalog.pg_database d + JOIN pg_catalog.pg_user u + ON (u.usesysid = d.datdba) + WHERE d.datname = arg_database + LIMIT 1 + ), + TRUE + ) THEN + RAISE EXCEPTION 'Invalid database: %', arg_database; + ELSIF arg_parameter NOT IN ( + 'log', + 'log_catalog', + 'log_max_string_length', + 'log_nested_statements', + 'log_parameter', + 'log_relation', + 'log_statement', + 'log_statement_once' + ) THEN + RAISE EXCEPTION 'Invalid parameter: %', arg_parameter; + END IF; + + EXECUTE pg_catalog.format('ALTER DATABASE %I SET pgaudit.%I = %L', + arg_database, + arg_parameter, + arg_value + ); +END; +$$; + +DROP FUNCTION IF EXISTS aiven_extras.set_pgaudit_role_parameter(TEXT, TEXT, TEXT); +CREATE FUNCTION aiven_extras.set_pgaudit_role_parameter( + arg_parameter TEXT, + arg_role TEXT, + arg_value TEXT +) +RETURNS VOID LANGUAGE plpgsql +SECURITY DEFINER +SET search_path = pg_catalog, aiven_extras +AS $$ +DECLARE + is_allowed bool := true; +BEGIN + IF COALESCE( + (SELECT rolsuper + FROM pg_catalog.pg_roles + WHERE rolname = arg_role + LIMIT 1 + ), + FALSE + ) THEN + RAISE EXCEPTION 'Configuring superuser roles not allowed: %', arg_role; + END IF; + WITH RECURSIVE tree AS ( + -- Start with the possibly admin_role + SELECT member AS base_role, roleid, admin_option, member FROM pg_auth_members + UNION ALL + -- Recurse down, keeping admin_option from up if it exists + SELECT base_role, pg_auth_members.roleid, tree.admin_option OR pg_auth_members.admin_option AS admin_option, pg_auth_members.member FROM pg_auth_members JOIN tree ON pg_auth_members.member = tree.roleid + ) + SELECT EXISTS ( + SELECT 1 FROM tree WHERE base_role = session_user::regrole::oid AND admin_option AND roleid = arg_role::regrole + ) INTO is_allowed; + IF NOT is_allowed THEN + RAISE EXCEPTION 'Configuring roles on which we don''t have ADMIN membership is not allowed'; + END IF; + + IF arg_parameter NOT IN ( + 'log', + 'log_catalog', + 'log_max_string_length', + 'log_nested_statements', + 'log_parameter', + 'log_relation', + 'log_statement', + 'log_statement_once' + ) THEN + RAISE EXCEPTION 'Invalid parameter: %', arg_parameter; + END IF; + + EXECUTE format('ALTER ROLE %I SET pgaudit.%I = %L', + arg_role, + arg_parameter, + arg_value + ); +END; +$$; + +DROP FUNCTION IF EXISTS aiven_extras.explain_statement(TEXT); +CREATE FUNCTION aiven_extras.explain_statement( + arg_query TEXT, + OUT execution_plan JSON +) +RETURNS SETOF JSON +RETURNS NULL ON NULL INPUT +LANGUAGE plpgsql +AS $$ +DECLARE + curs REFCURSOR; + plan JSON; +BEGIN + OPEN curs FOR EXECUTE pg_catalog.concat('EXPLAIN (FORMAT JSON) ', arg_query); + FETCH curs INTO plan; + CLOSE curs; + RETURN QUERY SELECT plan; +END; +$$; + + +-- THIS LINE ALWAYS NEEDS TO BE EXECUTED LAST IN FILE +PERFORM pg_catalog.set_config('search_path', old_path, true); +-- NO MORE CODE AFTER THIS + +END; +$OUTER$; + +-- standby slots functions +DROP FUNCTION IF EXISTS aiven_extras.pg_create_logical_replication_slot_on_standby(name, name, boolean, boolean); +CREATE FUNCTION aiven_extras.pg_create_logical_replication_slot_on_standby( + slot_name name, + plugin name, + temporary boolean DEFAULT false, + twophase boolean DEFAULT false, + OUT slot_name name, OUT lsn pg_lsn) +AS 'MODULE_PATHNAME', 'standby_slot_create' +LANGUAGE C; + +DROP FUNCTION IF EXISTS aiven_extras.aiven_truncate_freespace_map(regclass); +CREATE FUNCTION aiven_extras.truncate_freespace_map(regclass) +RETURNS void +AS 'MODULE_PATHNAME', 'aiven_truncate_freespace_map' +LANGUAGE C; diff --git a/sql/aiven_extras.sql b/sql/aiven_extras.sql index e4449f4..f6a5eb1 100644 --- a/sql/aiven_extras.sql +++ b/sql/aiven_extras.sql @@ -511,6 +511,8 @@ RETURNS VOID LANGUAGE plpgsql SECURITY DEFINER SET search_path = pg_catalog, aiven_extras AS $$ +DECLARE + is_allowed bool := true; BEGIN IF COALESCE( (SELECT rolsuper @@ -521,7 +523,22 @@ BEGIN FALSE ) THEN RAISE EXCEPTION 'Configuring superuser roles not allowed: %', arg_role; - ELSIF arg_parameter NOT IN ( + END IF; + WITH RECURSIVE tree AS ( + -- Start with the possibly admin_role + SELECT member AS base_role, roleid, admin_option, member FROM pg_auth_members + UNION ALL + -- Recurse down, keeping admin_option from up if it exists + SELECT base_role, pg_auth_members.roleid, tree.admin_option OR pg_auth_members.admin_option AS admin_option, pg_auth_members.member FROM pg_auth_members JOIN tree ON pg_auth_members.member = tree.roleid + ) + SELECT EXISTS ( + SELECT 1 FROM tree WHERE base_role = session_user::regrole::oid AND admin_option AND roleid = arg_role::regrole + ) INTO is_allowed; + IF NOT is_allowed THEN + RAISE EXCEPTION 'Configuring roles on which we don''t have ADMIN membership is not allowed'; + END IF; + + IF arg_parameter NOT IN ( 'log', 'log_catalog', 'log_max_string_length',