답변:
데이터베이스 객체 크기 함수를 사용해보십시오 . 예를 들면 :
SELECT pg_size_pretty(pg_total_relation_size('"<schema>"."<table>"'));
모든 테이블에 대해 다음과 같은 내용이 있습니다.
SELECT
table_schema || '.' || table_name AS table_full_name,
pg_size_pretty(pg_total_relation_size('"' || table_schema || '"."' || table_name || '"')) AS size
FROM information_schema.tables
ORDER BY
pg_total_relation_size('"' || table_schema || '"."' || table_name || '"') DESC;
편집 : 편의를 위해 @phord가 제출 한 쿼리는 다음과 같습니다.
SELECT
table_name,
pg_size_pretty(table_size) AS table_size,
pg_size_pretty(indexes_size) AS indexes_size,
pg_size_pretty(total_size) AS total_size
FROM (
SELECT
table_name,
pg_table_size(table_name) AS table_size,
pg_indexes_size(table_name) AS indexes_size,
pg_total_relation_size(table_name) AS total_size
FROM (
SELECT ('"' || table_schema || '"."' || table_name || '"') AS table_name
FROM information_schema.tables
) AS all_tables
ORDER BY total_size DESC
) AS pretty_sizes;
pg_table_size()
메타 데이터를 포함하고 크기를 합치기 위해 약간 수정했습니다 .
'"' || table_schema || '"."' || table_name || '"'
에 format('%I.%I', table_schema, table_name)
.
데이터베이스 크기 표시 :
\l+
예 :
=> \l+
berbatik_prd_commerce | berbatik_prd | UTF8 | en_US.UTF-8 | en_US.UTF-8 | | 19 MB | pg_default |
berbatik_stg_commerce | berbatik_stg | UTF8 | en_US.UTF-8 | en_US.UTF-8 | | 8633 kB | pg_default |
bursasajadah_prd | bursasajadah_prd | UTF8 | en_US.UTF-8 | en_US.UTF-8 | | 1122 MB | pg_default |
테이블 크기 표시 :
\d+
예 :
=> \d+
public | tuneeca_prd | table | tomcat | 8192 bytes |
public | tuneeca_stg | table | tomcat | 1464 kB |
에서 작동합니다 psql
.
( @zkutch의 답변 요약 )
\dti+
할 경우 트릭을 수행합니다.
Tyr this : (인덱스 크기 / 사용 통계)
SELECT
t.tablename,
indexname,
c.reltuples AS num_rows,
pg_size_pretty(pg_relation_size(quote_ident(t.tablename)::text)) AS table_size,
pg_size_pretty(pg_relation_size(quote_ident(indexrelname)::text)) AS index_size,
CASE WHEN indisunique THEN 'Y'
ELSE 'N'
END AS UNIQUE,
idx_scan AS number_of_scans,
idx_tup_read AS tuples_read,
idx_tup_fetch AS tuples_fetched
FROM pg_tables t
LEFT OUTER JOIN pg_class c ON t.tablename=c.relname
LEFT OUTER JOIN
( SELECT c.relname AS ctablename, ipg.relname AS indexname, x.indnatts AS number_of_columns, idx_scan, idx_tup_read, idx_tup_fetch, indexrelname, indisunique FROM pg_index x
JOIN pg_class c ON c.oid = x.indrelid
JOIN pg_class ipg ON ipg.oid = x.indexrelid
JOIN pg_stat_all_indexes psai ON x.indexrelid = psai.indexrelid )
AS foo
ON t.tablename = foo.ctablename
WHERE t.schemaname='public'
ORDER BY 1,2;
PostgreSQL 테이블에는 테이블 자체, 인덱스 및 TOAST 데이터의 세 가지 구성 요소가 있습니다. http://wiki.postgresql.org/wiki/Disk_Usage 에서 사용 가능한 정보를 다양한 방법으로 슬라이드하고 주사위를 굴리는 방법을 보여주는 몇 가지 예가 있습니다 .
정보를 얻으려면 @aib에서 탁월한 답변을 얻었으며 조금 수정했습니다.
구체화 된 뷰에서는 구체화 된 뷰를 동시에 새로 고치기 위해 인덱스를 사용하여 업데이트하는 동안 뷰 를 사용할 수 있습니다 .
내 쿼리는 다음과 같습니다.
SELECT
table_name,
pg_size_pretty(table_size) AS table_size,
pg_size_pretty(indexes_size) AS indexes_size,
pg_size_pretty(total_size) AS total_size
FROM (
SELECT
table_name,
pg_table_size(table_name) AS table_size,
pg_indexes_size(table_name) AS indexes_size,
pg_total_relation_size(table_name) AS total_size
FROM (
-- tables from 'public'
SELECT table_name
FROM information_schema.tables
where table_schema = 'public' and table_type = 'BASE TABLE'
union
-- materialized views
SELECT oid::regclass::text as table_name
FROM pg_class
WHERE relkind = 'm'
order by table_name
) AS all_tables
-- ORDER BY total_size DESC
order by table_name
) AS pretty_sizes
아래의 쿼리는 당신에게 도움이 될 것입니다
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 <> 'i'
AND nspname !~ '^pg_toast'
ORDER BY pg_total_relation_size(C.oid) DESC
LIMIT 20;
이 링크를 참조하십시오 : https://wiki.postgresql.org/wiki/Disk_Usage
이 위키를 확인하십시오. https://wiki.postgresql.org/wiki/Disk_Usage
SELECT *, pg_size_pretty (total_bytes) AS 합계 , pg_size_pretty (index_bytes) INDEX로 , pg_size_pretty (toast_bytes) AS 토스트 , pg_size_pretty (table_bytes) AS 테이블 FROM ( SELECT *, total_bytes-index_bytes-COALESCE (toast_bytes, 0) AS table_bytes FROM ( SELECT c.oid, nspname AS table_schema, relname AS TABLE_NAME c. row_estimate 그대로 사용 , pg_total_relation_size (c.oid) AS total_bytes , pg_indexes_size (c.oid) AS index_bytes , pg_total_relation_size (reltoastrelid) AS toast_bytes pg_class c에서 왼쪽 가입 pg_namespace n ON n.oid = c.relnamespace relkind = 'r'위치 ) ㅏ ) ㅏ
이 스크립트를 사용하여 모든 테이블 크기를 찾으십시오.
SELECT
table_schema || '.' || table_name AS TableName,
pg_size_pretty(pg_total_relation_size('"' || table_schema || '"."' || table_name || '"')) AS TableSize
FROM information_schema.tables
ORDER BY
pg_total_relation_size('"' || table_schema || '"."' || table_name || '"') DESC
PostgreSQL에서 다른 크기의 스크립트를 찾으려면 다음 URL을 방문하십시오. http://www.dbrnd.com/2015/05/how-to-find-size-of-database-and-table-in-postgresql/