cartodb-postgresql/scripts-available/CDB_TableIndexes.sql

27 lines
963 B
PL/PgSQL

-- Function returning indexes for a table
CREATE OR REPLACE FUNCTION CDB_TableIndexes(REGCLASS)
RETURNS TABLE(index_name name, index_unique bool, index_primary bool, index_keys text array)
AS $$
SELECT pg_class.relname as index_name,
idx.indisunique as index_unique,
idx.indisprimary as index_primary,
ARRAY(
SELECT pg_get_indexdef(idx.indexrelid, k + 1, true)
FROM generate_subscripts(idx.indkey, 1) as k
ORDER BY k
) as index_keys
FROM pg_indexes,
pg_index as idx
JOIN pg_class
ON pg_class.oid = idx.indexrelid
WHERE pg_indexes.tablename = '' || $1 || ''
AND '' || $1 || '' IN (SELECT CDB_UserTables())
AND pg_class.relname=pg_indexes.indexname;
$$ LANGUAGE SQL;
-- This is a private function, so only the db owner need privileges
REVOKE ALL ON FUNCTION CDB_TableIndexes(REGCLASS) FROM PUBLIC;
GRANT EXECUTE ON FUNCTION CDB_TableIndexes(REGCLASS) TO ":DATABASE_USERNAME";