diff options
| -rw-r--r-- | doc/src/sgml/plpgsql.sgml | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/doc/src/sgml/plpgsql.sgml b/doc/src/sgml/plpgsql.sgml index 4ffccc71e53..719f641c88e 100644 --- a/doc/src/sgml/plpgsql.sgml +++ b/doc/src/sgml/plpgsql.sgml @@ -2403,19 +2403,29 @@ END LOOP <optional> <replaceable>label</replaceable> </optional>; resulting from the <replaceable>query</replaceable> and the loop body is executed for each row. Here is an example: <programlisting> -CREATE FUNCTION cs_refresh_mviews() RETURNS integer AS $$ +CREATE FUNCTION refresh_mviews() RETURNS integer AS $$ DECLARE mviews RECORD; BEGIN - RAISE NOTICE 'Refreshing materialized views...'; - - FOR mviews IN SELECT * FROM cs_materialized_views ORDER BY sort_key LOOP + RAISE NOTICE 'Refreshing all materialized views...'; + + FOR mviews IN + SELECT n.nspname AS mv_schema, + c.relname AS mv_name, + pg_catalog.pg_get_userbyid(c.relowner) AS owner + FROM pg_catalog.pg_class c + LEFT JOIN pg_catalog.pg_namespace n ON (n.oid = c.relnamespace) + WHERE c.relkind = 'm' + ORDER BY 1 + LOOP - -- Now "mviews" has one record from cs_materialized_views + -- Now "mviews" has one record with information about the materialized view - RAISE NOTICE 'Refreshing materialized view %s ...', quote_ident(mviews.mv_name); - EXECUTE format('TRUNCATE TABLE %I', mviews.mv_name); - EXECUTE format('INSERT INTO %I %s', mviews.mv_name, mviews.mv_query); + RAISE NOTICE 'Refreshing materialized view %.% (owner: %)...', + quote_ident(mviews.mv_schema), + quote_ident(mviews.mv_name), + quote_ident(mviews.owner); + EXECUTE format('REFRESH MATERIALIZED VIEW %I.%I', mviews.mv_schema, mviews.mv_name); END LOOP; RAISE NOTICE 'Done refreshing materialized views.'; |