Redshift中查看database、schema、table数据大小
1. 查看当前数据库大小以及记录行数
select
trim(pgdb.datname) as database, sum(b.mbytes) as mbytes, sum(a.rows) as rows
from
(select db_id, id, name, sum(rows) as rows from stv_tbl_perm a group by db_id, id, name) as a
join pg_class as pgc on pgc.oid = a.id
join pg_namespace as pgn on pgn.oid = pgc.relnamespace
join pg_database as pgdb on pgdb.oid = a.db_id
join (select tbl, count(*) as mbytes from stv_blocklist group by tbl) b on a.id=b.tbl
group by pgdb.datname
order by 1; database | mbytes | rows
-----------+---------+------------
analytics | 1074998 | 5030398009
(1 row)
2. 查看当前数据库各schema大小以及每个schema下的记录行数
select
trim(pgdb.datname) as database, trim(pgn.nspname) as schema,
sum(b.mbytes) as mbytes, sum(a.rows) as rows
from
(select db_id, id, name, sum(rows) as rows from stv_tbl_perm a group by db_id, id, name) as a
join pg_class as pgc on pgc.oid = a.id
join pg_namespace as pgn on pgn.oid = pgc.relnamespace
join pg_database as pgdb on pgdb.oid = a.db_id
join (select tbl, count(*) as mbytes from stv_blocklist group by tbl) b on a.id=b.tbl
group by pgdb.datname, pgn.nspname
order by 1, 2; database | schema | mbytes | rows
-----------+-------------+--------+------------
analytics | datascience | 168 | 196128
analytics | dba | 15852 | 43752350
analytics | dimensions | 28223 | 225275059
analytics | facts | 265457 | 1382762113
analytics | public | 50235 | 104688442
analytics | search_data | 696799 | 3235794562
analytics | staging | 18264 | 37929355
(7 rows)
3. 查看当前数据库下每张表的大小
方法一
SELECT TRIM(pgdb.datname) AS Database,
TRIM(a.name) AS Table,
((b.mbytes/part.total::decimal)*100)::decimal(5,2) AS pct_of_total,
b.mbytes,
b.unsorted_mbytes
FROM stv_tbl_perm a
JOIN pg_database AS pgdb
ON pgdb.oid = a.db_id
JOIN ( SELECT tbl,
SUM( DECODE(unsorted, 1, 1, 0)) AS unsorted_mbytes,
COUNT(*) AS mbytes
FROM stv_blocklist
GROUP BY tbl ) AS b
ON a.id = b.tbl
JOIN ( SELECT SUM(capacity) AS total
FROM stv_partitions
WHERE part_begin = 0 ) AS part
ON 1 = 1
WHERE a.slice = 0
ORDER BY 4 desc, db_id, name; database | table | pct_of_total | mbytes | unsorted_mbytes
-----------+-----------------------------------------------+--------------+--------+-----------------
analytics | es_entitysvc_response_logshed | 39.42 | 450948 | 449820
analytics | es_entitysvc_logshed | 18.06 | 206630 | 206054
analytics | auto_events | 9.99 | 114379 | 113395
analytics | auto_events_realtime | 4.11 | 47029 | 47020
analytics | auto_events_rt | 2.20 | 25251 | 25242
analytics | entity | 1.87 | 21485 | 16553
analytics | unified_events_dev | 1.27 | 14604 | 14592
analytics | logshedevents_processed | 0.65 | 7504 | 7504
analytics | client_events_stg | 0.60 | 6912 | 6912
analytics | search_autocomplete_response_processed | 0.58 | 6672 | 6660
analytics | entity_gen3 | 0.51 | 5940 | 5796
analytics | staging_auto_events_stg | 0.47 | 5436 | 5436
analytics | es_denaliusage_logshed | 0.45 | 5224 | 5212
analytics | scout4cars_events | 0.38 | 4430 | 4430
analytics | search_autocomplete_request_processed | 0.35 | 4080 | 4068
analytics | osm_metrics | 0.32 | 3718 | 3708
analytics | gm_auto_events | 0.32 | 3715 | 1970
analytics | client_events_raj | 0.32 | 3707 | 1584
analytics | scout_events_tmp | 0.29 | 3384 | 1716
analytics | client_events_sessionmap_stg_loadtest | 0.28 | 3288 | 3288
analytics | unified_events_for_scout_dev | 0.27 | 3192 | 3180
analytics | client_events_vlad | 0.27 | 3144 | 1572
analytics | client_events_backup_till_1010 | 0.27 | 3120 | 1584
(25 rows)
方法二
select
trim(pgdb.datname) as database, trim(pgn.nspname) as schema,
trim(a.name) as Table, b.mbytes, a.rows
from
(select db_id, id, name, sum(rows) as rows from stv_tbl_perm a group by db_id, id, name) as a
join pg_class as pgc on pgc.oid = a.id
join pg_namespace as pgn on pgn.oid = pgc.relnamespace
join pg_database as pgdb on pgdb.oid = a.db_id
join (select tbl, count(*) as mbytes from stv_blocklist group by tbl) b on a.id=b.tbl
order by 1, 2, 4 desc; database | schema | table | mbytes | rows
-----------+-------------+-----------------------------------------------+--------+------------
analytics | datascience | clusterwithstartstop | 168 | 196128
analytics | dba | staging_auto_events_stg | 5436 | 42524253
analytics | dba | client_events | 1680 | 8623
analytics | dba | client_events_hive | 1680 | 2742
analytics | dba | client_events_stg | 1656 | 3690
analytics | dba | client_events_stg_hive | 1548 | 2537
analytics | dba | facts_auto_events | 1452 | 1053537
analytics | dba | auto_events | 1200 | 79584
analytics | dba | facts_auto_events_hive | 1200 | 77384
analytics | dimensions | entity | 21485 | 178665073
analytics | dimensions | entity_gen3 | 5940 | 46499810
analytics | dimensions | date | 216 | 39444
analytics | dimensions | location | 192 | 65921
analytics | dimensions | product | 132 | 2292
analytics | dimensions | carrier | 96 | 1128
analytics | dimensions | application_info | 90 | 1248
analytics | dimensions | event_type_classification | 72 | 143
analytics | facts | auto_events | 114379 | 893071197
analytics | facts | auto_events_realtime | 47029 | 78054568
(21 rows)
方法三
select
cast(use2.usename as varchar(50)) as owner,
pgc.oid,
trim(pgdb.datname) as Database,
trim(pgn.nspname) as Schema,
trim(a.name) as Table,
b.mbytes,
a.rows
from
(select db_id, id, name, sum(rows) as rows
from stv_tbl_perm a
group by db_id, id, name
) as a
join pg_class as pgc on pgc.oid = a.id
left join pg_user use2 on (pgc.relowner = use2.usesysid)
join pg_namespace as pgn on pgn.oid = pgc.relnamespace
and pgn.nspowner > 1
join pg_database as pgdb on pgdb.oid = a.db_id
join
(select tbl, count(*) as mbytes
from stv_blocklist
group by tbl
) b on a.id = b.tbl
order by mbytes desc, a.db_id, a.name; owner | oid | database | schema | table | mbytes | rows
------------------------+---------+-----------+-------------+-----------------------------------------------+--------+------------
search_data_writer | 780702 | analytics | search_data | es_entitysvc_response_logshed | 450948 | 1983660186
search_data_writer | 780704 | analytics | search_data | es_entitysvc_logshed | 206630 | 870298752
tnadmin | 868711 | analytics | facts | auto_events | 114379 | 893071197
client_events_etl_user | 680119 | analytics | facts | auto_events_realtime | 47029 | 78054568
tnadmin | 868715 | analytics | facts | auto_events_rt | 25251 | 184784513
sheena | 119412 | analytics | dimensions | entity | 21485 | 178665073
client_events_etl_user | 1080972 | analytics | facts | unified_events_dev | 14604 | 104578129
search_data_writer | 225115 | analytics | search_data | logshedevents_processed | 7504 | 112599927
tnadmin | 148013 | analytics | staging | client_events_stg | 6912 | 9145782
search_data_writer | 218921 | analytics | search_data | search_autocomplete_response_processed | 6672 | 116412380
tnadmin | 950671 | analytics | dimensions | entity_gen3 | 5940 | 46499810
tnadmin | 252547 | analytics | dba | staging_auto_events_stg | 5436 | 42524253
search_data_writer | 958865 | analytics | search_data | es_denaliusage_logshed | 5224 | 11127230
tnadmin | 754088 | analytics | facts | scout4cars_events | 4430 | 17981548
search_data_writer | 218919 | analytics | search_data | search_autocomplete_request_processed | 4080 | 42130637
matthieu | 157597 | analytics | facts | osm_metrics | 3718 | 33749875
tnadmin | 689962 | analytics | facts | gm_auto_events | 3715 | 12066340
tnadmin | 158221 | analytics | facts | client_events_raj | 3707 | 1362676
krishna | 138765 | analytics | staging | client_events_sessionmap_stg_loadtest | 3288 | 18799978
client_events_etl_user | 1070400 | analytics | facts | unified_events_for_scout_dev | 3192 | 2961636
tnadmin | 128436 | analytics | facts | client_events_backup_till_1010 | 3120 | 7046
tnadmin | 147602 | analytics | facts | client_events_logshed_temp | 3120 | 44265
(24 rows)
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