article/postgresql_and_edb/edb表空间查询.md
2025-02-04 23:51:44 +08:00

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```sql
SELECT nspname || '.' || relname AS "relation",
pg_size_pretty(pg_total_relation_size(C.oid)) AS "total_size"
FROM pg_class C
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE nspname NOT IN ('pg_catalog', 'information_schema')
AND C.relkind = 'r'
ORDER BY pg_total_relation_size(C.oid) DESC;
```
```sql
SELECT schemaname || '.' || relname AS "relation",
pg_size_pretty(pg_total_relation_size(relid)) AS "total_size",
pg_size_pretty(pg_table_size(relid) - pg_indexes_size(relid)) AS "table_size",
pg_size_pretty(pg_indexes_size(relid)) AS "index_size",
n_dead_tup
FROM pg_stat_user_tables
WHERE n_dead_tup > 0
ORDER BY n_dead_tup DESC;
```