GitHub
/
pg-utils
mirror of https://github.com/dataegret/pg-utils.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

change column name

change_column_names
Test User 4 years ago
parent
32aece7f84
commit
5b961695d2
21 changed files with 114 additions and 147 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 3
      sql/check_strange_fk.sql
  2. 55
      sql/check_uniq_indexes.sql
  3. 10
      sql/dirty_to_read_stat.sql
  4. 5
      sql/index_bloat.sql
  5. 4
      sql/index_candidates_from_ssd.sql
  6. 4
      sql/index_candidates_to_ssd.sql
  7. 9
      sql/index_disk_activity.sql
  8. 5
      sql/indexes_with_nulls.sql
  9. 7
      sql/low_used_indexes.sql
  10. 20
      sql/query_stat_counts.sql
  11. 28
      sql/query_stat_cpu_time.sql
  12. 30
      sql/query_stat_io_time.sql
  13. 30
      sql/query_stat_time.sql
  14. 4
      sql/redundant_indexes.sql
  15. 3
      sql/seq_scan_tables.sql
  16. 7
      sql/table_bloat.sql
  17. 7
      sql/table_bloat_approx.sql
  18. 8
      sql/table_candidates_from_ssd.sql
  19. 10
      sql/table_candidates_to_ssd.sql
  20. 6
      sql/table_index_write_activity.sql
  21. 6
      sql/table_write_activity.sql

3
sql/check_strange_fk.sql
Unescape View File

@ -1,3 +1,2 @@ @@ -1,3 +1,2 @@
select pc1.oid::regclass||'.'||pa1.attname, pt1.typname, pc2.relname||'.'||pa2.attname, pt2.typname from pg_constraint pco join pg_class pc1 on pc1.oid=conrelid join pg_class pc2 on pc2.oid=confrelid join pg_attribute pa1 on pa1.attnum=conkey[1] and pa1.attrelid=conrelid join pg_attribute pa2 on pa2.attnum=confkey[1] and pa2.attrelid=confrelid join pg_type pt1 on pt1.oid=pa1.atttypid join pg_type pt2 on pt2.oid=pa2.atttypid where pa1.atttypid<>pa2.atttypid and contype='f' order by 1,2;
select pc1.oid::regclass||'.'||pa1.attname as "table_column1", pt1.typname, pc2.relname||'.'||pa2.attname as "table_column2", pt2.typname from pg_constraint pco join pg_class pc1 on pc1.oid=conrelid join pg_class pc2 on pc2.oid=confrelid join pg_attribute pa1 on pa1.attnum=conkey[1] and pa1.attrelid=conrelid join pg_attribute pa2 on pa2.attnum=confkey[1] and pa2.attrelid=confrelid join pg_type pt1 on pt1.oid=pa1.atttypid join pg_type pt2 on pt2.oid=pa2.atttypid where pa1.atttypid<>pa2.atttypid and contype='f' order by 1,2;

55
sql/check_uniq_indexes.sql
Unescape View File

@ -1,32 +1,31 @@ @@ -1,32 +1,31 @@
SELECT
n.nspname ||'.'||c.relname AS table
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE
c.relkind = 'r'::"char"
AND
n.nspname NOT LIKE 'pg_%' AND n.nspname<>'_slony' AND n.nspname<>'information_schema'
AND
NOT EXISTS (
SELECT
n.nspname AS schema,
c.relname AS relname
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
pg_catalog.pg_index.indexrelid
FROM pg_catalog.pg_index
WHERE
c.relkind = 'r'::"char"
AND
n.nspname NOT LIKE 'pg_%' AND n.nspname<>'_slony' AND n.nspname<>'information_schema'
AND
NOT EXISTS (
SELECT
pg_catalog.pg_index.indexrelid
FROM pg_catalog.pg_index
WHERE
pg_catalog.pg_index.indrelid=c.oid
pg_catalog.pg_index.indrelid=c.oid
AND
pg_catalog.pg_index.indisunique='t'
AND
NOT EXISTS (
SELECT
i_attr.attname
FROM pg_catalog.pg_attribute t_attr
JOIN pg_catalog.pg_attribute i_attr ON i_attr.attname=t_attr.attname AND i_attr.attrelid = pg_catalog.pg_index.indexrelid
WHERE
t_attr.attrelid = c.oid
AND
pg_catalog.pg_index.indisunique='t'
AND
NOT EXISTS (
SELECT
i_attr.attname
FROM pg_catalog.pg_attribute t_attr
JOIN pg_catalog.pg_attribute i_attr ON i_attr.attname=t_attr.attname AND i_attr.attrelid = pg_catalog.pg_index.indexrelid
WHERE
t_attr.attrelid = c.oid
AND
t_attr.attnotnull <> 't'
)
)
ORDER BY 1,2
t_attr.attnotnull <> 't'
)
)
ORDER BY 1,2

10
sql/dirty_to_read_stat.sql
Unescape View File

@ -1,10 +1,9 @@ @@ -1,10 +1,9 @@
WITH
buffer_data AS (
SELECT
relfilenode,
sum(case when isdirty then 1 else 0 end) as dirty_pages,
round(100.0 * sum(case when isdirty then 1 else 0 end) / count(*), 1) as "%_dirty",
round(100.0 * sum(case when isdirty then 1 else 0 end) / count(*), 1) as "dirty_%",
count(*) as cached_pages
FROM public.pg_buffercache GROUP BY 1
)
@ -14,10 +13,10 @@ SELECT @@ -14,10 +13,10 @@ SELECT
c.relkind,
t.spcname AS tblsp,
pg_size_pretty(pg_relation_size(c.oid)) AS relsize,
round(buffer_data.cached_pages::numeric*100*8192/pg_relation_size(c.oid), 1) as "%_cached",
round(buffer_data.cached_pages::numeric*100*8192/pg_relation_size(c.oid), 1) as "cached_%",
pg_size_pretty(8192*(pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid))) AS disk_read,
pg_size_pretty(buffer_data.dirty_pages*8192) as dirty_size,
buffer_data."%_dirty",
buffer_data."dirty_%",
round((pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid))::numeric/buffer_data.dirty_pages, 1) as read_to_dirty_ratio
FROM pg_class c
LEFT JOIN buffer_data ON buffer_data.relfilenode = c.relfilenode
@ -25,5 +24,4 @@ LEFT JOIN pg_namespace n ON n.oid = c.relnamespace @@ -25,5 +24,4 @@ LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
LEFT JOIN pg_tablespace t ON t.oid=c.reltablespace
WHERE
dirty_pages>0
ORDER BY dirty_pages desc LIMIT 60;
ORDER BY dirty_pages desc LIMIT 60;

5
sql/index_bloat.sql
Unescape View File

@ -3,13 +3,12 @@ @@ -3,13 +3,12 @@
with indexes as (
select * from pg_stat_user_indexes
)
select schemaname,
table_name,
select schemaname||'.'||table_name as table,
pg_size_pretty(table_size) as table_size,
index_name,
pg_size_pretty(index_size) as index_size,
idx_scan as index_scans,
round((free_space*100/index_size)::numeric, 1) as waste_percent,
round((free_space*100/index_size)::numeric, 1) as "waste_%",
pg_size_pretty(free_space) as waste
from (
select schemaname, p.relname as table_name, indexrelname as index_name,

4
sql/index_candidates_from_ssd.sql
Unescape View File

@ -1,7 +1,6 @@ @@ -1,7 +1,6 @@
SELECT * FROM (
SELECT
(n.nspname||'.'||c.relname)::varchar(30) AS "table",
(n.nspname||'.'||c.relname)::varchar(40) AS "table",
i.relname AS "index",
t.spcname AS tblsp,
pg_size_pretty(pg_relation_size(i.oid)) AS size,
@ -22,4 +21,3 @@ WHERE c.relkind = 'r' @@ -22,4 +21,3 @@ WHERE c.relkind = 'r'
WHERE d_w_rat<25
AND tblsp='ssd'
ORDER BY disk DESC NULLS LAST;

4
sql/index_candidates_to_ssd.sql
Unescape View File

@ -1,7 +1,6 @@ @@ -1,7 +1,6 @@
SELECT * FROM (
SELECT
(n.nspname||'.'||c.relname)::varchar(30) AS "table",
(n.nspname||'.'||c.relname)::varchar(40) AS "table",
i.relname AS "index",
t.spcname AS tblsp,
pg_size_pretty(pg_relation_size(i.oid)) AS size,
@ -23,4 +22,3 @@ WHERE d_w_rat>10 @@ -23,4 +22,3 @@ WHERE d_w_rat>10
AND (tblsp is NULL OR tblsp<>'ssd')
AND disk>1000
ORDER BY disk DESC NULLS LAST;

9
sql/index_disk_activity.sql
Unescape View File

@ -3,12 +3,12 @@ buffer_data AS ( @@ -3,12 +3,12 @@ buffer_data AS (
SELECT
relfilenode,
pg_size_pretty(sum(case when isdirty then 1 else 0 end) * 8192) as dirty,
round(100.0 * sum(case when isdirty then 1 else 0 end) / count(*), 1) as "%_dirty"
round(100.0 * sum(case when isdirty then 1 else 0 end) / count(*), 1) as "dirty_%"
FROM public.pg_buffercache GROUP BY 1
)
SELECT
(n.nspname||'.'||c.relname)::varchar(30) AS "table",
(n.nspname||'.'||c.relname)::varchar(40) AS "table",
i.relname AS "index",
coalesce(t.spcname, (select spcname from pg_tablespace where oid=(select dattablespace from pg_database where datname=current_database()))) AS tblsp,
pg_size_pretty(pg_relation_size(i.oid)) AS size,
@ -19,7 +19,7 @@ SELECT @@ -19,7 +19,7 @@ SELECT
pg_stat_get_numscans(i.oid) AS idx_scan,
-- pg_stat_get_tuples_returned(i.oid) AS idx_tup_read,
buffer_data.dirty,
buffer_data."%_dirty"
buffer_data."dirty_%"
FROM pg_class c
JOIN pg_index x ON c.oid = x.indrelid
JOIN pg_class i ON i.oid = x.indexrelid
@ -31,6 +31,3 @@ WHERE c.relkind = 'r' @@ -31,6 +31,3 @@ WHERE c.relkind = 'r'
AND (t.spcname IS DISTINCT FROM 'pg_global') and (n.nspname IS DISTINCT FROM 'pg_catalog')
AND pg_stat_get_blocks_fetched(i.oid) - pg_stat_get_blocks_hit(i.oid)>100
ORDER BY disk DESC NULLS LAST, idx_scan DESC LIMIT 50;

5
sql/indexes_with_nulls.sql
Unescape View File

@ -1,5 +1,3 @@ @@ -1,5 +1,3 @@
select
pg_index.indrelid::regclass as table,
pg_index.indexrelid::regclass as index,
@ -11,7 +9,6 @@ from pg_index @@ -11,7 +9,6 @@ from pg_index
join pg_attribute ON pg_attribute.attrelid=pg_index.indrelid AND pg_attribute.attnum=ANY(pg_index.indkey)
join pg_statistic ON pg_statistic.starelid=pg_index.indrelid AND pg_statistic.staattnum=pg_attribute.attnum
where pg_statistic.stanullfrac>0.5 AND pg_relation_size(pg_index.indexrelid)>10*8192
order by pg_relation_size(pg_index.indexrelid) desc,1,2,3
;
order by pg_relation_size(pg_index.indexrelid) desc,1,2,3;

7
sql/low_used_indexes.sql
Unescape View File

@ -1,6 +1,5 @@ @@ -1,6 +1,5 @@
SELECT pg_stat_user_indexes.schemaname || '.' || pg_stat_user_indexes.relname tablemane
, pg_stat_user_indexes.indexrelname
SELECT pg_stat_user_indexes.schemaname || '.' || pg_stat_user_indexes.relname as table
, pg_stat_user_indexes.indexrelname as index
, pg_stat_user_indexes.idx_scan
, psut.write_activity
, psut.seq_scan
@ -25,4 +24,4 @@ SELECT pg_stat_user_indexes.schemaname || '.' || pg_stat_user_indexes.relname ta @@ -25,4 +24,4 @@ SELECT pg_stat_user_indexes.schemaname || '.' || pg_stat_user_indexes.relname ta
where pg_index.indisunique is false
and pg_stat_user_indexes.idx_scan::float / (psut.write_activity + 1)::float < 0.01
and psut.write_activity > case when pg_is_in_recovery () then -1 else 10000 end
order by 4 desc, 1, 2
order by 4 desc, 1, 2;

20
sql/query_stat_counts.sql
Unescape View File

@ -1,14 +1,13 @@ @@ -1,14 +1,13 @@
with s AS
(SELECT sum(total_time) AS t,sum(calls) AS s,sum(rows) as r FROM pg_stat_statements WHERE dbid=(SELECT oid from pg_database where datname=current_database()))
SELECT
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS "time_%",
total_time::numeric(20,2) as total_time,
(total_time*1000/calls)::numeric(10,3) AS avg_time,
calls,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS "calls_%",
rows,
(100*rows/(SELECT r from s))::numeric(20,2) AS row_percent,
(100*rows/(SELECT r from s))::numeric(20,2) AS "row_%",
query
FROM pg_stat_statements
WHERE
@ -18,18 +17,17 @@ AND dbid=(SELECT oid from pg_database where datname=current_database()) @@ -18,18 +17,17 @@ AND dbid=(SELECT oid from pg_database where datname=current_database())
UNION all
SELECT
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2),
sum(total_time)::numeric(20,2),
(sum(total_time)*1000/sum(calls))::numeric(10,3) AS avg_time,
(sum(total_time)*1000/sum(calls))::numeric(10,3),
sum(calls),
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2),
sum(rows),
(100*sum(rows)/(SELECT r from s))::numeric(20,2) AS row_percent,
'other' AS query
(100*sum(rows)/(SELECT r from s))::numeric(20,2),
'other'
FROM pg_stat_statements
WHERE
calls/(SELECT s FROM s)<0.01
AND dbid=(SELECT oid from pg_database where datname=current_database())
ORDER BY 4 DESC;
ORDER BY 4 DESC;

28
sql/query_stat_cpu_time.sql
Unescape View File

@ -1,4 +1,3 @@ @@ -1,4 +1,3 @@
with s AS
(SELECT sum(total_time) AS t,sum(blk_read_time+blk_write_time) as iot, sum(total_time-blk_read_time-blk_write_time) as cput, sum(calls) AS s,sum(rows) as r FROM pg_stat_statements WHERE dbid=(SELECT oid from pg_database where datname=current_database()))
,
@ -10,16 +9,16 @@ group by query @@ -10,16 +9,16 @@ group by query
)
SELECT
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS iotime_percent,
(100*(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS cputime_percent,
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS "time_%",
(100*(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS "iotime_%",
(100*(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS "cputime_%",
total_time::numeric(20,2) as total_time,
(total_time*1000/calls)::numeric(20,2) AS avg_time,
((blk_read_time+blk_write_time)*1000/calls)::numeric(20,2) AS avg_io_time,
calls,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS "calls_%",
rows,
(100*rows/(SELECT r from s))::numeric(20,2) AS row_percent,
(100*rows/(SELECT r from s))::numeric(20,2) AS "row_%",
query
FROM _pg_stat_statements
WHERE
@ -28,20 +27,19 @@ WHERE @@ -28,20 +27,19 @@ WHERE
UNION all
SELECT
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*sum(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS iotime_percent,
(100*sum(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS cputime_percent,
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2),
(100*sum(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2),
(100*sum(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2),
sum(total_time)::numeric(20,2),
(sum(total_time)*1000/sum(calls))::numeric(10,3) AS avg_time,
(sum(blk_read_time+blk_write_time)*1000/sum(calls))::numeric(10,3) AS avg_io_time,
(sum(total_time)*1000/sum(calls))::numeric(10,3),
(sum(blk_read_time+blk_write_time)*1000/sum(calls))::numeric(10,3),
sum(calls),
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2),
sum(rows),
(100*sum(rows)/(SELECT r from s))::numeric(20,2) AS row_percent,
(100*sum(rows)/(SELECT r from s))::numeric(20,2),
'other' AS query
FROM _pg_stat_statements
WHERE
(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s)<0.02
ORDER BY 3 DESC;
ORDER BY 3 DESC;

30
sql/query_stat_io_time.sql
Unescape View File

@ -1,4 +1,3 @@ @@ -1,4 +1,3 @@
with s AS
(SELECT sum(total_time) AS t,sum(blk_read_time+blk_write_time) as iot, sum(total_time-blk_read_time-blk_write_time) as cput, sum(calls) AS s,sum(rows) as r FROM pg_stat_statements WHERE dbid=(SELECT oid from pg_database where datname=current_database()))
,
@ -10,16 +9,16 @@ group by query @@ -10,16 +9,16 @@ group by query
)
SELECT
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS iotime_percent,
(100*(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS cputime_percent,
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS "time_%",
(100*(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS "iotime_%",
(100*(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS "cputime_%",
total_time::numeric(20,2) as total_time,
(total_time*1000/calls)::numeric(20,2) AS avg_time,
((blk_read_time+blk_write_time)*1000/calls)::numeric(20,2) AS avg_io_time,
calls,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS "calls_%",
rows,
(100*rows/(SELECT r from s))::numeric(20,2) AS row_percent,
(100*rows/(SELECT r from s))::numeric(20,2) AS "row_%",
query
FROM _pg_stat_statements
WHERE
@ -28,20 +27,19 @@ WHERE @@ -28,20 +27,19 @@ WHERE
UNION all
SELECT
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*sum(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS iotime_percent,
(100*sum(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS cputime_percent,
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2),
(100*sum(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2),
(100*sum(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2),
sum(total_time)::numeric(20,2),
(sum(total_time)*1000/sum(calls))::numeric(10,3) AS avg_time,
(sum(blk_read_time+blk_write_time)*1000/sum(calls))::numeric(10,3) AS avg_io_time,
(sum(total_time)*1000/sum(calls))::numeric(10,3),
(sum(blk_read_time+blk_write_time)*1000/sum(calls))::numeric(10,3),
sum(calls),
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2),
sum(rows),
(100*sum(rows)/(SELECT r from s))::numeric(20,2) AS row_percent,
'other' AS query
(100*sum(rows)/(SELECT r from s))::numeric(20,2),
'other'
FROM _pg_stat_statements
WHERE
(blk_read_time+blk_write_time)/(SELECT iot FROM s)<0.02
ORDER BY 2 DESC;
ORDER BY 2 DESC;

30
sql/query_stat_time.sql
Unescape View File

@ -1,4 +1,3 @@ @@ -1,4 +1,3 @@
with s AS
(SELECT sum(total_time) AS t,sum(blk_read_time+blk_write_time) as iot, sum(total_time-blk_read_time-blk_write_time) as cput, sum(calls) AS s,sum(rows) as r FROM pg_stat_statements WHERE dbid=(SELECT oid from pg_database where datname=current_database()))
,
@ -10,16 +9,16 @@ group by query @@ -10,16 +9,16 @@ group by query
)
SELECT
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS iotime_percent,
(100*(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS cputime_percent,
(100*total_time/(SELECT t FROM s))::numeric(20,2) AS "time_%",
(100*(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS "iotime_%",
(100*(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS "cputime_%",
total_time::numeric(20,2) as total_time,
(total_time*1000/calls)::numeric(20,2) AS avg_time,
((blk_read_time+blk_write_time)*1000/calls)::numeric(20,2) AS avg_io_time,
calls,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*calls/(SELECT s FROM s))::numeric(20,2) AS "calls_%",
rows,
(100*rows/(SELECT r from s))::numeric(20,2) AS row_percent,
(100*rows/(SELECT r from s))::numeric(20,2) AS "row_%",
query
FROM _pg_stat_statements
WHERE
@ -28,20 +27,19 @@ WHERE @@ -28,20 +27,19 @@ WHERE
UNION all
SELECT
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2) AS time_percent,
(100*sum(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2) AS iotime_percent,
(100*sum(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2) AS cputime_percent,
(100*sum(total_time)/(SELECT t FROM s))::numeric(20,2),
(100*sum(blk_read_time+blk_write_time)/(SELECT iot FROM s))::numeric(20,2),
(100*sum(total_time-blk_read_time-blk_write_time)/(SELECT cput FROM s))::numeric(20,2),
sum(total_time)::numeric(20,2),
(sum(total_time)*1000/sum(calls))::numeric(10,3) AS avg_time,
(sum(blk_read_time+blk_write_time)*1000/sum(calls))::numeric(10,3) AS avg_io_time,
(sum(total_time)*1000/sum(calls))::numeric(10,3),
(sum(blk_read_time+blk_write_time)*1000/sum(calls))::numeric(10,3),
sum(calls),
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2) AS calls_percent,
(100*sum(calls)/(SELECT s FROM s))::numeric(20,2),
sum(rows),
(100*sum(rows)/(SELECT r from s))::numeric(20,2) AS row_percent,
'other' AS query
(100*sum(rows)/(SELECT r from s))::numeric(20,2),
'other'
FROM _pg_stat_statements
WHERE
(total_time)/(SELECT t FROM s)<0.02
ORDER BY 1 DESC;
ORDER BY 1 DESC;

4
sql/redundant_indexes.sql
Unescape View File

@ -1,11 +1,9 @@ @@ -1,11 +1,9 @@
WITH
index_data AS
(SELECT *,string_to_array(indkey::text,' ') as key_array,array_length(string_to_array(indkey::text,' '),1) as nkeys from pg_index)
SELECT
i1.indrelid::regclass::text,
i1.indrelid::regclass::text as table,
pg_get_indexdef(i1.indexrelid) main_index,
pg_get_indexdef(i2.indexrelid) redundant_index,
pg_size_pretty(pg_relation_size(i2.indexrelid)) redundant_index_size

3
sql/seq_scan_tables.sql
Unescape View File

@ -1,6 +1,5 @@ @@ -1,6 +1,5 @@
SELECT
schemaname||'.'||relname,
schemaname||'.'||relname as table,
n_live_tup,
seq_scan,
seq_tup_read,

7
sql/table_bloat.sql
Unescape View File

@ -1,12 +1,11 @@ @@ -1,12 +1,11 @@
--pgstattuple extension required
--WARNING: without table name/mask query will read all available tables which could cause I/O spikes
select nspname,
relname,
select nspname||'.'||relname as table,
pg_size_pretty(relation_size + toast_relation_size) as total_size,
pg_size_pretty(toast_relation_size) as toast_size,
round(((relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size, 1))::numeric, 1) table_waste_percent,
round(((relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size, 1))::numeric, 1) "table_waste_%",
pg_size_pretty((relation_size - (relation_size - free_space)*100/fillfactor)::bigint) table_waste,
round(((toast_free_space + relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size + toast_relation_size, 1))::numeric, 1) total_waste_percent,
round(((toast_free_space + relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size + toast_relation_size, 1))::numeric, 1) "total_waste_%",
pg_size_pretty((toast_free_space + relation_size - (relation_size - free_space)*100/fillfactor)::bigint) total_waste
from (
select nspname, relname,

7
sql/table_bloat_approx.sql
Unescape View File

@ -1,13 +1,12 @@ @@ -1,13 +1,12 @@
--faster version of table_bloat.sql which returns approximate results and doesn't read whole table (but reads toast tables)
--pgstattuple v1.3+ extension required (available since postgresql 9.5)
--WARNING: without table name/mask query will read all available tables which could cause I/O spikes
select nspname,
relname,
select nspname||'.'||relname as table,
pg_size_pretty(relation_size + toast_relation_size) as total_size,
pg_size_pretty(toast_relation_size) as toast_size,
round(((relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size, 1))::numeric, 1) table_waste_percent,
round(((relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size, 1))::numeric, 1) "table_waste_%",
pg_size_pretty((relation_size - (relation_size - free_space)*100/fillfactor)::bigint) table_waste,
round(((toast_free_space + relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size + toast_relation_size, 1))::numeric, 1) total_waste_percent,
round(((toast_free_space + relation_size - (relation_size - free_space)*100/fillfactor)*100/greatest(relation_size + toast_relation_size, 1))::numeric, 1) "total_waste_%",
pg_size_pretty((toast_free_space + relation_size - (relation_size - free_space)*100/fillfactor)::bigint) total_waste
from (
select nspname, relname,

8
sql/table_candidates_from_ssd.sql
Unescape View File

@ -1,5 +1,3 @@ @@ -1,5 +1,3 @@
select * from (WITH totals_counts AS
(
SELECT
@ -9,16 +7,16 @@ select * from (WITH totals_counts AS @@ -9,16 +7,16 @@ select * from (WITH totals_counts AS
WHERE c.relkind='r'
)
SELECT
(n.nspname||'.'||c.relname)::varchar(30),
(n.nspname||'.'||c.relname)::varchar(40) as table,
t.spcname AS tblsp,
pg_size_pretty(pg_relation_size(c.oid)+(CASE WHEN c.reltoastrelid=0 THEN 0 ELSE pg_total_relation_size(c.reltoastrelid) END)) AS size,
((pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid))::numeric(20,2)/GREATEST(1, (pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid)))::numeric(20,2))::numeric(20,2) AS ratio,
pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid) AS disk,
((100*(pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid)))/(SELECT disk FROM totals_counts))::numeric(5,2) AS "disk%",
((100*(pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid)))/(SELECT disk FROM totals_counts))::numeric(5,2) AS "disk_%",
((SELECT SUM(pg_stat_get_tuples_fetched(i.indexrelid))::bigint FROM pg_index i WHERE i.indrelid=c.oid) + pg_stat_get_tuples_fetched(c.oid))/GREATEST(1, (pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid))) AS rt_d_rat,
((SELECT SUM(pg_stat_get_tuples_fetched(i.indexrelid))::bigint FROM pg_index i WHERE i.indrelid=c.oid) + pg_stat_get_tuples_fetched(c.oid)) AS r_tuples,
pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid) AS write,
((100*(pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid)))/(SELECT write FROM totals_counts))::numeric(5,2) AS "write%",
((100*(pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid)))/(SELECT write FROM totals_counts))::numeric(5,2) AS "write_%",
pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid) AS n_tup_ins,
pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid) AS n_tup_upd,
pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid) AS n_tup_del

10
sql/table_candidates_to_ssd.sql
Unescape View File

@ -1,6 +1,4 @@ @@ -1,6 +1,4 @@
select * from (WITH totals_counts AS
select * from (WITH totals_counts AS
(
SELECT
sum(pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid)) as disk,
@ -9,16 +7,16 @@ @@ -9,16 +7,16 @@
WHERE c.relkind='r'
)
SELECT
(n.nspname||'.'||c.relname)::varchar(30),
(n.nspname||'.'||c.relname)::varchar(40) as table,
t.spcname AS tblsp,
pg_size_pretty(pg_relation_size(c.oid)+(CASE WHEN c.reltoastrelid=0 THEN 0 ELSE pg_total_relation_size(c.reltoastrelid) END)) AS size,
(pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid))/GREATEST(1, (pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid))) AS ratio,
pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid) AS disk,
((100*(pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid)))/(SELECT disk FROM totals_counts))::numeric(5,2) AS "disk%",
((100*(pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid)))/(SELECT disk FROM totals_counts))::numeric(5,2) AS "disk_%",
((SELECT SUM(pg_stat_get_tuples_fetched(i.indexrelid))::bigint FROM pg_index i WHERE i.indrelid=c.oid) + pg_stat_get_tuples_fetched(c.oid))/GREATEST(1, (pg_stat_get_blocks_fetched(c.oid)-pg_stat_get_blocks_hit(c.oid)+pg_stat_get_blocks_fetched(c.reltoastrelid)-pg_stat_get_blocks_hit(c.reltoastrelid))) AS rt_d_rat,
((SELECT SUM(pg_stat_get_tuples_fetched(i.indexrelid))::bigint FROM pg_index i WHERE i.indrelid=c.oid) + pg_stat_get_tuples_fetched(c.oid)) AS r_tuples,
pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid) AS write,
((100*(pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid)))/(SELECT write FROM totals_counts))::numeric(5,2) AS "write%",
((100*(pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid)+2*(pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid))+pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid)))/(SELECT write FROM totals_counts))::numeric(5,2) AS "write_%",
pg_stat_get_tuples_inserted(c.oid)+pg_stat_get_tuples_inserted(c.reltoastrelid) AS n_tup_ins,
pg_stat_get_tuples_updated(c.oid)+pg_stat_get_tuples_updated(c.reltoastrelid) AS n_tup_upd,
pg_stat_get_tuples_deleted(c.oid)+pg_stat_get_tuples_deleted(c.reltoastrelid) AS n_tup_del

6
sql/table_index_write_activity.sql
Unescape View File

@ -1,7 +1,7 @@ @@ -1,7 +1,7 @@
SELECT
pg_stat_user_tables.schemaname||'.'||pg_stat_user_tables.relname,
pg_size_pretty(pg_relation_size(relid)),
pg_stat_user_tables.schemaname||'.'||pg_stat_user_tables.relname as table,
pg_size_pretty(pg_relation_size(relid)) as size,
t.spcname AS tblsp,
coalesce(t.spcname, (select spcname from pg_tablespace where oid=(select dattablespace from pg_database where datname=current_database()))) AS tblsp,
seq_scan,
@ -10,7 +10,7 @@ n_tup_ins, @@ -10,7 +10,7 @@ n_tup_ins,
n_tup_upd,
n_tup_del,
coalesce(n_tup_ins,0)+coalesce(n_tup_upd,0)-coalesce(n_tup_hot_upd,0)+coalesce(n_tup_del,0) as total,
(coalesce(n_tup_hot_upd,0)::float*100/(case when n_tup_upd>0 then n_tup_upd else 1 end)::float)::numeric(10,2) as hot_rate,
(coalesce(n_tup_hot_upd,0)::float*100/(case when n_tup_upd>0 then n_tup_upd else 1 end)::float)::numeric(10,2) as "HOT_rate",
(select v[1] FROM regexp_matches(reloptions::text,E'fillfactor=(\\d+)') as r(v) limit 1) as fillfactor
from pg_stat_user_tables
JOIN pg_class c ON c.oid=relid

6
sql/table_write_activity.sql
Unescape View File

@ -1,7 +1,7 @@ @@ -1,7 +1,7 @@
SELECT
pg_stat_all_tables.schemaname||'.'||pg_stat_all_tables.relname,
pg_size_pretty(pg_relation_size(relid)),
pg_stat_all_tables.schemaname||'.'||pg_stat_all_tables.relname as table,
pg_size_pretty(pg_relation_size(relid)) as size,
coalesce(t.spcname, (select spcname from pg_tablespace where oid=(select dattablespace from pg_database where datname=current_database()))) AS tblsp,
seq_scan,
idx_scan,
@ -9,7 +9,7 @@ n_tup_ins, @@ -9,7 +9,7 @@ n_tup_ins,
n_tup_upd,
n_tup_del,
coalesce(n_tup_ins,0)+2*coalesce(n_tup_upd,0)-coalesce(n_tup_hot_upd,0)+coalesce(n_tup_del,0) as total,
(coalesce(n_tup_hot_upd,0)::float*100/(case when n_tup_upd>0 then n_tup_upd else 1 end)::float)::numeric(10,2) as hot_rate,
(coalesce(n_tup_hot_upd,0)::float*100/(case when n_tup_upd>0 then n_tup_upd else 1 end)::float)::numeric(10,2) as "HOT_rate",
(select v[1] FROM regexp_matches(reloptions::text,E'fillfactor=(\\d+)') as r(v) limit 1) as fillfactor
from pg_stat_all_tables
JOIN pg_class c ON c.oid=relid

Write Preview
Loading…
Cancel
Save