查Postgresql 数据库占用磁盘大小

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  1. SELECT d.datname AS Name,pg_catalog.pg_get_userbyid(d.datdba) AS Owner,CASE WHEN pg_catalog.has_database_privilege(d.datname,'CONNECT')
  2. THEN pg_catalog.pg_size_pretty(pg_catalog.pg_database_size(d.datname))
  3. ELSE 'No Access'
  4. END AS SIZE
  5. FROM pg_catalog.pg_database d
  6. ORDER BY
  7. CASE WHEN pg_catalog.has_database_privilege(d.datname,'CONNECT')
  8. THEN pg_catalog.pg_database_size(d.datname)
  9. ELSE NULL
  10. END DESC -- nulls first
  11. LIMIT 20

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