Query to check owner of each table in Redshift
SELECT n.nspname AS schema_name,
pg_get_userbyid(c.relowner) AS table_owner,
c.relname AS table_name,
CASE
WHEN c.relkind = 'v' THEN 'view'
ELSE 'table'
END AS table_type,
d.description AS table_description
FROM pg_class AS c
LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
LEFT JOIN pg_tablespace t ON t.oid = c.reltablespace
LEFT JOIN pg_description AS d
ON (d.objoid = c.oid
AND d.objsubid = 0)
WHERE c.relkind IN ('r','v')
ORDER BY n.nspname,
c.relname