explain.depesz.com

PostgreSQL's explain analyze made readable

Result: OirG : Optimization for: plan #OmjF

Settings

Optimization path:

# exclusive inclusive rows x rows loops node
1. 0.001 0.109 ↑ 1.0 2 1

Unique (cost=66.18..66.22 rows=2 width=60) (actual time=0.108..0.109 rows=2 loops=1)

  • Buffers: shared hit=7 read=4, local hit=1
2. 0.014 0.108 ↑ 1.0 2 1

Sort (cost=66.18..66.19 rows=2 width=60) (actual time=0.108..0.108 rows=2 loops=1)

  • Sort Key: t1._fld13664rref, t1._fld13665_type, t1._fld13665_rtref, t1._fld13665_rrref, t3._idrref, (CASE WHEN (t3._idrref IS NULL) THEN false ELSE true END), (CASE WHEN (t3._idrref IS NULL) THEN true ELSE false END)
  • Sort Method: quicksort Memory: 25kB
  • Buffers: shared hit=7 read=4, local hit=1
3. 0.004 0.094 ↑ 1.0 2 1

Nested Loop Left Join (cost=2.00..66.17 rows=2 width=60) (actual time=0.078..0.094 rows=2 loops=1)

  • Join Filter: ((t1._fld13664rref = t3._fld11564rref) AND (t1._fld13665_type = CASE WHEN (t3._fld11565rref IS NOT NULL) THEN '\\010'::bytea ELSE NULL::bytea END) AND (t1._fld13665_rtref = CASE WHEN (t3._fld11565rref IS NOT NULL) THEN '\\000\\00 (...)
  • Buffers: shared hit=7 read=4, local hit=1
4. 0.004 0.052 ↑ 1.0 2 1

Nested Loop (cost=1.45..12.44 rows=2 width=41) (actual time=0.037..0.052 rows=2 loops=1)

  • Buffers: shared hit=7, local hit=1
5. 0.001 0.014 ↑ 1.0 2 1

Unique (cost=1.03..1.04 rows=2 width=17) (actual time=0.013..0.014 rows=2 loops=1)

  • Buffers: local hit=1
6. 0.008 0.013 ↑ 1.0 2 1

Sort (cost=1.03..1.03 rows=2 width=17) (actual time=0.013..0.013 rows=2 loops=1)

  • Sort Key: t13._q_000_f_000rref
  • Sort Method: quicksort Memory: 25kB
  • Buffers: local hit=1
7. 0.005 0.005 ↑ 1.0 2 1

Seq Scan on tt999 t13 (cost=0.00..1.02 rows=2 width=17) (actual time=0.005..0.005 rows=2 loops=1)

  • Buffers: local hit=1
8. 0.034 0.034 ↑ 1.0 1 2

Index Only Scan using _inforg13662_byresource13669_rrrr on _inforg13662 t1 (cost=0.42..5.69 rows=1 width=58) (actual time=0.015..0.017 rows=1 loops=2)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld13666rref = t13._q_000_f_000rref))
  • Heap Fetches: 0
  • Buffers: shared hit=7
9. 0.000 0.038 ↓ 0.0 0 2

Materialize (cost=0.55..53.69 rows=1 width=51) (actual time=0.019..0.019 rows=0 loops=2)

  • Buffers: shared read=4
10. 0.038 0.038 ↓ 0.0 0 1

Index Scan using _document375_byfield21395_tr on _document375 t3 (cost=0.55..53.68 rows=1 width=51) (actual time=0.038..0.038 rows=0 loops=1)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld11568 = '2019-05-01 00:00:00'::timestamp without time zone) AND (_fld11569 = '2019-05-31 23:59:59'::timestamp without time zone))
  • Filter: ((NOT _marked) AND (SubPlan 4))
  • Buffers: shared read=4
11.          

SubPlan (forIndex Scan)

12. 0.000 0.000 ↓ 0.0 0

Nested Loop Semi Join (cost=13.11..46.11 rows=1 width=0) (never executed)

  • Join Filter: (CASE WHEN (SubPlan 1) THEN true ELSE false END = CASE WHEN (alternatives: SubPlan 2 or hashed SubPlan 3) THEN true ELSE false END)
13. 0.000 0.000 ↓ 0.0 0

Nested Loop Left Join (cost=0.42..7.47 rows=1 width=17) (never executed)

  • Filter: (CASE WHEN (t4._fld3020rref IS NULL) THEN '\\001'::bytea ELSE CASE WHEN (t4._fld3020rref IS NOT NULL) THEN '\\010'::bytea ELSE NULL::bytea END END <> '\\001'::bytea)
14. 0.000 0.000 ↓ 0.0 0

Result (cost=0.00..0.01 rows=1 width=4) (never executed)

15. 0.000 0.000 ↓ 0.0 0

Index Scan using _reference124hpk on _reference124 t4 (cost=0.42..7.44 rows=1 width=17) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (t3._fld11565rref = _idrref))
16. 0.000 0.000 ↓ 0.0 0

Materialize (cost=12.69..23.29 rows=1 width=17) (never executed)

17. 0.000 0.000 ↓ 0.0 0

Nested Loop (cost=12.69..23.29 rows=1 width=17) (never executed)

18. 0.000 0.000 ↓ 0.0 0

Nested Loop (cost=12.42..22.99 rows=1 width=38) (never executed)

19. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _reference105_byfield2798_sr on _reference105 t7 (cost=0.41..7.42 rows=1 width=20) (never executed)

  • Index Cond: (_fld2789 = 'Документ.СверкаВзаиморасчетов'::mvarchar)
  • Heap Fetches: 0
20. 0.000 0.000 ↓ 0.0 0

Nested Loop (cost=12.01..15.55 rows=1 width=57) (never executed)

21. 0.000 0.000 ↓ 0.0 0

HashAggregate (cost=11.59..11.60 rows=1 width=19) (never executed)

  • Group Key: t8._reference73_idrref
22. 0.000 0.000 ↓ 0.0 0

Nested Loop (cost=0.56..11.59 rows=1 width=19) (never executed)

23. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _inforg14726_bydims14730_rr on _inforg14726 t9 (cost=0.28..3.83 rows=2 width=24) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld14728_type = '\\010'::bytea) AND (_fld14728_rtref = '\\000\\000\\000\\254'::bytea) AND (_fld14728_rrref = 'P\\2140Z:wL\\341\\021\\347 (...)
  • Heap Fetches: 0
24. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _reference73_vt2103_byfield2106_rr on _reference73_vt2103 t8 (cost=0.28..3.85 rows=3 width=49) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld2105_type = t9._fld14727_type) AND (_fld2105_rtref = t9._fld14727_rtref) AND (_fld2105_rrref = t9._fld14727_rrref))
  • Heap Fetches: 0
25. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _inforg14845_bydims14850_rr on _inforg14845 t6 (cost=0.42..3.94 rows=1 width=38) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld14847rref = t8._reference73_idrref) AND (_fld14846rref = t7._idrref))
  • Heap Fetches: 0
26. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _reference73hpk on _reference73 t5 (cost=0.27..0.29 rows=1 width=17) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_idrref = t6._fld14847rref))
  • Heap Fetches: 0
27.          

SubPlan (forNested Loop Semi Join)

28. 0.000 0.000 ↓ 0.0 0

Nested Loop (cost=0.83..11.39 rows=1 width=0) (never executed)

29. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _inforg13761_bydims_rrn on _inforg13761 t11 (cost=0.42..7.45 rows=1 width=24) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld13762_type = CASE WHEN (t4._fld3020rref IS NOT NULL) THEN '\\010'::bytea ELSE NULL::bytea END) AND (_fld13762_rtref = CASE WHEN (t4._fld3020rref IS NOT NULL) THE (...)
  • Heap Fetches: 0
30. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _inforg13931_bydims13935_rr on _inforg13931 t10 (cost=0.41..3.93 rows=1 width=27) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld13933_type = t11._fld13763_type) AND (_fld13933_rtref = t11._fld13763_rtref) AND (_fld13933_rrref = t11._fld13763_rrref) AND (_fld13932rref = t5._idrref))
  • Heap Fetches: 0
31. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _inforg13938_byresource13945_lrr on _inforg13938 t12 (cost=0.41..3.93 rows=1 width=0) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld13941 = false) AND (_fld13939rref = t5._idrref) AND (_fld13940_type = CASE WHEN (t4._fld3020rref IS NOT NULL) THEN '\\010'::bytea ELSE NULL::bytea END) AND (_fld13940_ (...)
  • Filter: (NOT _fld13941)
  • Heap Fetches: 0
32. 0.000 0.000 ↓ 0.0 0

Index Only Scan using _inforg13938_byresource13945_lrr on _inforg13938 t12_1 (cost=0.41..199.45 rows=1,027 width=24) (never executed)

  • Index Cond: ((_fld717 = '0'::numeric) AND (_fld13941 = false))
  • Filter: (NOT _fld13941)
  • Heap Fetches: 0
Planning time : 72.961 ms
Execution time : 0.311 ms