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koooee/table size on postgres

Created July 9, 2014 23:10
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table size on postgres
-- get the size of tables and indexes in the database
-- https://wiki.postgresql.org/wiki/Disk_Usage
SELECT nspname || '.' || relname AS "relation",
pg_size_pretty(pg_relation_size(C.oid)) AS "size"
FROM pg_class C
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE nspname NOT IN ('pg_catalog', 'information_schema')
ORDER BY pg_relation_size(C.oid) DESC
LIMIT 20;
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