Paweł Domański
31 lines
1.4 KiB
SQL
31 lines
1.4 KiB
SQL
SELECT *,
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n_dead_tup > av_threshold AS "av_needed",
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CASE WHEN reltuples > 0
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THEN round(100.0 * n_dead_tup / (reltuples))
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ELSE 0
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END AS pct_dead
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FROM (SELECT
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N.nspname || '.' || C.relname AS "relation",
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pg_stat_get_tuples_inserted(C.oid) AS n_tup_ins,
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pg_stat_get_tuples_updated(C.oid) AS n_tup_upd,
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pg_stat_get_tuples_deleted(C.oid) AS n_tup_del,
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CASE WHEN pg_stat_get_tuples_updated(C.oid) > 0
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THEN pg_stat_get_tuples_hot_updated(C.oid)::real / pg_stat_get_tuples_updated(C.oid)
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ELSE 0
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END AS HOT_update_ratio,
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pg_stat_get_live_tuples(C.oid) AS n_live_tup,
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pg_stat_get_dead_tuples(C.oid) AS n_dead_tup,
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C.reltuples AS reltuples,
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round( current_setting('autovacuum_vacuum_threshold')::integer + current_setting('autovacuum_vacuum_scale_factor')::numeric * C.reltuples) AS av_threshold,
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date_trunc('minute',greatest(pg_stat_get_last_vacuum_time(C.oid),pg_stat_get_last_autovacuum_time(C.oid))) AS last_vacuum,
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date_trunc('minute',greatest(pg_stat_get_last_analyze_time(C.oid),pg_stat_get_last_analyze_time(C.oid))) AS last_analyze
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FROM pg_class C
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LEFT JOIN pg_index I ON C.oid = I.indrelid
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE C.relkind IN ('r', 't')
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AND N.nspname NOT IN ('pg_catalog', 'information_schema')
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AND N.nspname !~ '^pg_toast'
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) AS av
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ORDER BY av_needed DESC,
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n_dead_tup DESC;
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