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@mz026
Last active December 11, 2019 09:12
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-- list row counts
SELECT schemaname,relname,n_live_tup
FROM pg_stat_user_tables
ORDER BY n_live_tup DESC;
-- see vacuum records
SELECT
schemaname, relname,
last_vacuum, last_autovacuum,
vacuum_count, autovacuum_count,
last_analyze, last_autoanalyze
FROM pg_stat_user_tables
order by autovacuum_count desc limit 10
-- see disc usage by tables:
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 10;
-- list processes
SELECT * from pg_stat_activity ;
-- kill process
SELECT pg_terminate_backend(23509)
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