李大仁博客

--查出单个表的大小
SELECT pg_size_pretty(pg_relation_size('TABLENAME'));

--查出单个表的大小 select pg_size_pretty(pg_relation_size('TABLENAME'));

-- 查出表大小按大小含Index
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,
SUBSTRING("table_name",1,10) AS short_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
WHERE all_tables.table_name LIKE '%TABLENAME%'
ORDER BY total_size DESC
) AS pretty_sizes

-- 查出表大小按大小含Index 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, SUBSTRING("table_name",1,10) as short_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 where all_tables.table_name like '%TABLENAME%' ORDER BY total_size DESC ) AS pretty_sizes