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PMM-8618 Extend PostgreSQL monitoring (percona#54)
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‎queries.yaml

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pg_replication:
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query: "SELECT CASE WHEN NOT pg_is_in_recovery() THEN 0 ELSE GREATEST (0, EXTRACT(EPOCH FROM (now() - pg_last_xact_replay_timestamp()))) END AS lag"
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master: true
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metrics:
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- lag:
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usage: "GAUGE"
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description: "Replication lag behind master in seconds"
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pg_postmaster:
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query: "SELECT pg_postmaster_start_time as start_time_seconds from pg_postmaster_start_time()"
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master: true
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metrics:
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- start_time_seconds:
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usage: "GAUGE"
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description: "Time at which postmaster started"
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pg_stat_user_tables:
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query: |
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SELECT
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current_database() datname,
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schemaname,
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relname,
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seq_scan,
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seq_tup_read,
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idx_scan,
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idx_tup_fetch,
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n_tup_ins,
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n_tup_upd,
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n_tup_del,
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n_tup_hot_upd,
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n_live_tup,
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n_dead_tup,
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n_mod_since_analyze,
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COALESCE(last_vacuum, '1970-01-01Z') as last_vacuum,
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COALESCE(last_autovacuum, '1970-01-01Z') as last_autovacuum,
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COALESCE(last_analyze, '1970-01-01Z') as last_analyze,
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COALESCE(last_autoanalyze, '1970-01-01Z') as last_autoanalyze,
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vacuum_count,
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autovacuum_count,
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analyze_count,
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autoanalyze_count
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FROM
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pg_stat_user_tables
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metrics:
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- datname:
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usage: "LABEL"
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description: "Name of current database"
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- schemaname:
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usage: "LABEL"
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description: "Name of the schema that this table is in"
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- relname:
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usage: "LABEL"
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description: "Name of this table"
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- seq_scan:
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usage: "COUNTER"
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description: "Number of sequential scans initiated on this table"
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- seq_tup_read:
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usage: "COUNTER"
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description: "Number of live rows fetched by sequential scans"
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- idx_scan:
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usage: "COUNTER"
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description: "Number of index scans initiated on this table"
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- idx_tup_fetch:
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usage: "COUNTER"
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description: "Number of live rows fetched by index scans"
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- n_tup_ins:
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usage: "COUNTER"
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description: "Number of rows inserted"
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- n_tup_upd:
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usage: "COUNTER"
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description: "Number of rows updated"
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- n_tup_del:
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usage: "COUNTER"
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description: "Number of rows deleted"
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- n_tup_hot_upd:
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usage: "COUNTER"
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description: "Number of rows HOT updated (i.e., with no separate index update required)"
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- n_live_tup:
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usage: "GAUGE"
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description: "Estimated number of live rows"
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- n_dead_tup:
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usage: "GAUGE"
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description: "Estimated number of dead rows"
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- n_mod_since_analyze:
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usage: "GAUGE"
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description: "Estimated number of rows changed since last analyze"
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- last_vacuum:
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usage: "GAUGE"
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description: "Last time at which this table was manually vacuumed (not counting VACUUM FULL)"
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- last_autovacuum:
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usage: "GAUGE"
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description: "Last time at which this table was vacuumed by the autovacuum daemon"
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- last_analyze:
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usage: "GAUGE"
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description: "Last time at which this table was manually analyzed"
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- last_autoanalyze:
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usage: "GAUGE"
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description: "Last time at which this table was analyzed by the autovacuum daemon"
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- vacuum_count:
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usage: "COUNTER"
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description: "Number of times this table has been manually vacuumed (not counting VACUUM FULL)"
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- autovacuum_count:
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usage: "COUNTER"
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description: "Number of times this table has been vacuumed by the autovacuum daemon"
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- analyze_count:
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usage: "COUNTER"
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description: "Number of times this table has been manually analyzed"
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- autoanalyze_count:
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usage: "COUNTER"
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description: "Number of times this table has been analyzed by the autovacuum daemon"
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pg_statio_user_tables:
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query: "SELECT current_database() datname, schemaname, relname, heap_blks_read, heap_blks_hit, idx_blks_read, idx_blks_hit, toast_blks_read, toast_blks_hit, tidx_blks_read, tidx_blks_hit FROM pg_statio_user_tables"
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metrics:
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- datname:
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usage: "LABEL"
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description: "Name of current database"
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- schemaname:
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usage: "LABEL"
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description: "Name of the schema that this table is in"
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- relname:
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usage: "LABEL"
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description: "Name of this table"
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- heap_blks_read:
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usage: "COUNTER"
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description: "Number of disk blocks read from this table"
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- heap_blks_hit:
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usage: "COUNTER"
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description: "Number of buffer hits in this table"
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- idx_blks_read:
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usage: "COUNTER"
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description: "Number of disk blocks read from all indexes on this table"
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- idx_blks_hit:
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usage: "COUNTER"
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description: "Number of buffer hits in all indexes on this table"
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- toast_blks_read:
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usage: "COUNTER"
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description: "Number of disk blocks read from this table's TOAST table (if any)"
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- toast_blks_hit:
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usage: "COUNTER"
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description: "Number of buffer hits in this table's TOAST table (if any)"
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- tidx_blks_read:
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usage: "COUNTER"
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description: "Number of disk blocks read from this table's TOAST table indexes (if any)"
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- tidx_blks_hit:
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usage: "COUNTER"
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description: "Number of buffer hits in this table's TOAST table indexes (if any)"
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#### Queries are commented due to PMM-8859
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#pg_replication:
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# query: "SELECT CASE WHEN NOT pg_is_in_recovery() THEN 0 ELSE GREATEST (0, EXTRACT(EPOCH FROM (now() - pg_last_xact_replay_timestamp()))) END AS lag"
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# master: true
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# metrics:
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# - lag:
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# usage: "GAUGE"
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# description: "Replication lag behind master in seconds"
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pg_database:
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query: "SELECT pg_database.datname, pg_database_size(pg_database.datname) as size_bytes FROM pg_database"
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master: true
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cache_seconds: 30
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metrics:
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- datname:
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usage: "LABEL"
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description: "Name of the database"
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- size_bytes:
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usage: "GAUGE"
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description: "Disk space used by the database"
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#pg_postmaster:
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# query: "SELECT pg_postmaster_start_time as start_time_seconds from pg_postmaster_start_time()"
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# master: true
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# metrics:
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# - start_time_seconds:
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# usage: "GAUGE"
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# description: "Time at which postmaster started"
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#pg_stat_user_tables:
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# query: |
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# SELECT
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# current_database() datname,
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# schemaname,
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# relname,
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# seq_scan,
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# seq_tup_read,
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# idx_scan,
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# idx_tup_fetch,
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# n_tup_ins,
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# n_tup_upd,
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# n_tup_del,
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# n_tup_hot_upd,
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# n_live_tup,
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# n_dead_tup,
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# n_mod_since_analyze,
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# COALESCE(last_vacuum, '1970-01-01Z') as last_vacuum,
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# COALESCE(last_autovacuum, '1970-01-01Z') as last_autovacuum,
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# COALESCE(last_analyze, '1970-01-01Z') as last_analyze,
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# COALESCE(last_autoanalyze, '1970-01-01Z') as last_autoanalyze,
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# vacuum_count,
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# autovacuum_count,
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# analyze_count,
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# autoanalyze_count
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# FROM
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# pg_stat_user_tables
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# metrics:
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# - datname:
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# usage: "LABEL"
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# description: "Name of current database"
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# - schemaname:
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# usage: "LABEL"
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# description: "Name of the schema that this table is in"
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# - relname:
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# usage: "LABEL"
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# description: "Name of this table"
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# - seq_scan:
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# usage: "COUNTER"
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# description: "Number of sequential scans initiated on this table"
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# - seq_tup_read:
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# usage: "COUNTER"
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# description: "Number of live rows fetched by sequential scans"
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# - idx_scan:
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# usage: "COUNTER"
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# description: "Number of index scans initiated on this table"
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# - idx_tup_fetch:
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# usage: "COUNTER"
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# description: "Number of live rows fetched by index scans"
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# - n_tup_ins:
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# usage: "COUNTER"
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# description: "Number of rows inserted"
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# - n_tup_upd:
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# usage: "COUNTER"
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# description: "Number of rows updated"
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# - n_tup_del:
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# usage: "COUNTER"
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# description: "Number of rows deleted"
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# - n_tup_hot_upd:
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# usage: "COUNTER"
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# description: "Number of rows HOT updated (i.e., with no separate index update required)"
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# - n_live_tup:
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# usage: "GAUGE"
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# description: "Estimated number of live rows"
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# - n_dead_tup:
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# usage: "GAUGE"
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# description: "Estimated number of dead rows"
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# - n_mod_since_analyze:
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# usage: "GAUGE"
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# description: "Estimated number of rows changed since last analyze"
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# - last_vacuum:
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# usage: "GAUGE"
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# description: "Last time at which this table was manually vacuumed (not counting VACUUM FULL)"
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# - last_autovacuum:
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# usage: "GAUGE"
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# description: "Last time at which this table was vacuumed by the autovacuum daemon"
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# - last_analyze:
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# usage: "GAUGE"
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# description: "Last time at which this table was manually analyzed"
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# - last_autoanalyze:
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# usage: "GAUGE"
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# description: "Last time at which this table was analyzed by the autovacuum daemon"
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# - vacuum_count:
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# usage: "COUNTER"
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# description: "Number of times this table has been manually vacuumed (not counting VACUUM FULL)"
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# - autovacuum_count:
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# usage: "COUNTER"
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# description: "Number of times this table has been vacuumed by the autovacuum daemon"
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# - analyze_count:
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# usage: "COUNTER"
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# description: "Number of times this table has been manually analyzed"
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# - autoanalyze_count:
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# usage: "COUNTER"
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# description: "Number of times this table has been analyzed by the autovacuum daemon"
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#
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#pg_statio_user_tables:
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# query: "SELECT current_database() datname, schemaname, relname, heap_blks_read, heap_blks_hit, idx_blks_read, idx_blks_hit, toast_blks_read, toast_blks_hit, tidx_blks_read, tidx_blks_hit FROM pg_statio_user_tables"
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# metrics:
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# - datname:
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# usage: "LABEL"
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# description: "Name of current database"
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# - schemaname:
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# usage: "LABEL"
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# description: "Name of the schema that this table is in"
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# - relname:
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# usage: "LABEL"
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# description: "Name of this table"
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# - heap_blks_read:
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# usage: "COUNTER"
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# description: "Number of disk blocks read from this table"
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# - heap_blks_hit:
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# usage: "COUNTER"
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# description: "Number of buffer hits in this table"
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# - idx_blks_read:
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# usage: "COUNTER"
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# description: "Number of disk blocks read from all indexes on this table"
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# - idx_blks_hit:
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# usage: "COUNTER"
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# description: "Number of buffer hits in all indexes on this table"
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# - toast_blks_read:
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# usage: "COUNTER"
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# description: "Number of disk blocks read from this table's TOAST table (if any)"
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# - toast_blks_hit:
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# usage: "COUNTER"
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# description: "Number of buffer hits in this table's TOAST table (if any)"
143+
# - tidx_blks_read:
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# usage: "COUNTER"
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# description: "Number of disk blocks read from this table's TOAST table indexes (if any)"
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# - tidx_blks_hit:
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# usage: "COUNTER"
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# description: "Number of buffer hits in this table's TOAST table indexes (if any)"
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#
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#pg_database:
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# query: "SELECT pg_database.datname, pg_database_size(pg_database.datname) as size_bytes FROM pg_database"
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# master: true
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# cache_seconds: 30
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# metrics:
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# - datname:
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# usage: "LABEL"
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# description: "Name of the database"
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# - size_bytes:
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# usage: "GAUGE"
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# description: "Disk space used by the database"
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####
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#pg_stat_statements:
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# query: "SELECT t2.rolname, t3.datname, queryid, calls, total_time / 1000 as total_time_seconds, min_time / 1000 as min_time_seconds, max_time / 1000 as max_time_seconds, mean_time / 1000 as mean_time_seconds, stddev_time / 1000 as stddev_time_seconds, rows, shared_blks_hit, shared_blks_read, shared_blks_dirtied, shared_blks_written, local_blks_hit, local_blks_read, local_blks_dirtied, local_blks_written, temp_blks_read, temp_blks_written, blk_read_time / 1000 as blk_read_time_seconds, blk_write_time / 1000 as blk_write_time_seconds FROM pg_stat_statements t1 JOIN pg_roles t2 ON (t1.userid=t2.oid) JOIN pg_database t3 ON (t1.dbid=t3.oid) WHERE t2.rolname != 'rdsadmin'"
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# master: true

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