Redshift - Retrieve table descriptions

table_description.sql

SELECT
    t.table_catalog as cluster,
    t.table_schema as schema_name,
    t.table_name as table_name,
    t.table_type as table_type,
    pt.tableowner as table_owner,
    pgtd.description as description
FROM
    information_schema.tables as t
INNER JOIN pg_catalog.pg_statio_all_tables as st on
    t.table_schema = st.schemaname
    and t.table_name = st.relname
LEFT JOIN pg_catalog.pg_description pgtd on
    pgtd.objoid = st.relid
    and pgtd.objsubid = 0
LEFT JOIN pg_tables pt ON t.table_schema = pt.schemaname AND t.table_name = pt.tablename
WHERE table_schema IN ('{{ params.schemas | join("','") }}')
ORDER by
    cluster,
    schema_name,
    table_name
;