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YanhaoYang/queries.sql

Created July 26, 2018 12:29
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Some useful queries
Raw
queries.sql
SELECT nspname || '.' || relname AS "relation",
pg_size_pretty(pg_relation_size(C.oid)) AS "size"
FROM pg_class C
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE nspname NOT IN ('pg_catalog', 'information_schema')
ORDER BY pg_relation_size(C.oid) DESC
LIMIT 200 -- bigtables;
SELECT
pg_stat_activity.pid,
pg_class.relname,
pg_locks.transactionid,
pg_locks.granted,
age(now(),pg_stat_activity.query_start) AS "age",
pg_locks.mode,
pg_stat_activity.query
FROM pg_stat_activity,pg_locks left
OUTER JOIN pg_class
ON (pg_locks.relation = pg_class.oid)
WHERE pg_stat_activity.query <> '<insufficient privilege>'
AND pg_locks.pid = pg_stat_activity.pid
AND pg_stat_activity.pid <> pg_backend_pid()
ORDER BY age DESC LIMIT 800 -- actmon;
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