[DATABASE/POSTGRESQL] 테이블 크기 조회하기

■ 테이블 크기를 조회하는 방법을 보여준다.

 

▶ 예제 코드 (SQL)

SELECT
    N.NSPNAME || '.' || C.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 <> 'i'
AND   N.NSPNAME !~ '^pg_toast'
ORDER BY RELATION ASC;