Sha256: ae082948c84e931e625961155335ff64cb0afdaeacb61014f5473a5b0fc00faf
Contents?: true
Size: 1.66 KB
Versions: 84
Compression:
Stored size: 1.66 KB
Contents
/* Dead rows and whether an automatic vacuum is expected to be triggered */
WITH table_opts AS (
SELECT
pg_class.oid, relname, nspname, array_to_string(reloptions, '') AS relopts
FROM
pg_class INNER JOIN pg_namespace ns ON relnamespace = ns.oid
), vacuum_settings AS (
SELECT
oid, relname, nspname,
CASE
WHEN relopts LIKE '%autovacuum_vacuum_threshold%'
THEN substring(relopts, '.*autovacuum_vacuum_threshold=([0-9.]+).*')::integer
ELSE current_setting('autovacuum_vacuum_threshold')::integer
END AS autovacuum_vacuum_threshold,
CASE
WHEN relopts LIKE '%autovacuum_vacuum_scale_factor%'
THEN substring(relopts, '.*autovacuum_vacuum_scale_factor=([0-9.]+).*')::real
ELSE current_setting('autovacuum_vacuum_scale_factor')::real
END AS autovacuum_vacuum_scale_factor
FROM
table_opts
)
SELECT
vacuum_settings.nspname AS schema,
vacuum_settings.relname AS table,
to_char(psut.last_vacuum, 'YYYY-MM-DD HH24:MI') AS last_vacuum,
to_char(psut.last_autovacuum, 'YYYY-MM-DD HH24:MI') AS last_autovacuum,
to_char(pg_class.reltuples, '9G999G999G999') AS rowcount,
to_char(psut.n_dead_tup, '9G999G999G999') AS dead_rowcount,
to_char(autovacuum_vacuum_threshold
+ (autovacuum_vacuum_scale_factor::numeric * pg_class.reltuples), '9G999G999G999') AS autovacuum_threshold,
CASE
WHEN autovacuum_vacuum_threshold + (autovacuum_vacuum_scale_factor::numeric * pg_class.reltuples) < psut.n_dead_tup
THEN 'yes'
END AS expect_autovacuum
FROM
pg_stat_user_tables psut INNER JOIN pg_class ON psut.relid = pg_class.oid
INNER JOIN vacuum_settings ON pg_class.oid = vacuum_settings.oid
ORDER BY 1;
Version data entries
84 entries across 84 versions & 3 rubygems