41 lines
1.7 KiB
SQL
41 lines
1.7 KiB
SQL
WITH RECURSIVE pg_inherit(inhrelid, inhparent) AS
|
|
(select inhrelid, inhparent
|
|
FROM pg_inherits
|
|
UNION
|
|
SELECT child.inhrelid, parent.inhparent
|
|
FROM pg_inherit child, pg_inherits parent
|
|
WHERE child.inhparent = parent.inhrelid),
|
|
pg_inherit_short AS (SELECT * FROM pg_inherit WHERE inhparent NOT IN (SELECT inhrelid FROM pg_inherit))
|
|
SELECT TABLE_NAME
|
|
, row_estimate
|
|
, cast(total_bytes/1024/1024 as numeric(12,2)) AS total
|
|
, cast(table_bytes/1024/1024 as numeric(12,2)) AS table
|
|
, cast(toast_bytes/1024/1024 as numeric(12,2)) AS toast
|
|
, cast(index_bytes/1024/1024 as numeric(12,2)) AS index
|
|
FROM (
|
|
SELECT *, total_bytes-index_bytes-COALESCE(toast_bytes,0) AS table_bytes
|
|
FROM (
|
|
SELECT c.oid
|
|
, relname AS TABLE_NAME
|
|
, SUM(c.reltuples) OVER (partition BY parent) AS row_estimate
|
|
, SUM(pg_total_relation_size(c.oid)) OVER (partition BY parent) AS total_bytes
|
|
, SUM(pg_indexes_size(c.oid)) OVER (partition BY parent) AS index_bytes
|
|
, SUM(pg_total_relation_size(reltoastrelid)) OVER (partition BY parent) AS toast_bytes
|
|
, parent
|
|
FROM (
|
|
SELECT pg_class.oid
|
|
, reltuples
|
|
, relname
|
|
, relnamespace
|
|
, pg_class.reltoastrelid
|
|
, COALESCE(inhparent, pg_class.oid) parent
|
|
FROM pg_class
|
|
LEFT JOIN pg_inherit_short ON inhrelid = oid
|
|
WHERE relkind IN ('r', 'p', 'm')
|
|
) c
|
|
LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
|
|
WHERE nspname NOT IN ('pg_catalog','information_schema')
|
|
) a
|
|
WHERE oid = parent
|
|
) a
|
|
ORDER BY total_bytes DESC; |