explain.depesz.com

PostgreSQL's explain analyze made readable

Result: IfGA

Settings
# exclusive inclusive rows x rows loops node
1. 15,306.079 74,802.392 ↑ 9.5 693,105 1

Merge Left Join (cost=4,764,304.49..5,322,065.02 rows=6,563,371 width=72) (actual time=49,822.836..74,802.392 rows=693,105 loops=1)

  • Merge Cond: (oc.id = (COALESCE(fi.folder_id, f.parent_id)))
  • Filter: ((oc.cnt_picture <> ((COALESCE((sum(oc2.cnt_picture)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 1) THEN 1 ELSE 0 END)), '0'::bigint)))) OR (oc.cnt_spreadsheet = ((COALESCE((sum(oc2.cnt_spreadsheet)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 2) THEN 1 ELSE 0 END)), '0'::bigint)))) OR (oc.cnt_video = ((COALESCE((sum(oc2.cnt_video)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 3) THEN 1 ELSE 0 END)), '0'::bigint)))) OR (oc.cnt_text = ((COALESCE((sum(oc2.cnt_text)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 4) THEN 1 ELSE 0 END)), '0'::bigint)))) OR (oc.cnt_pdf = ((COALESCE((sum(oc2.cnt_pdf)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 5) THEN 1 ELSE 0 END)), '0'::bigint)))) OR (oc.cnt_presentation = ((COALESCE((sum(oc2.cnt_presentation)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 6) THEN 1 ELSE 0 END)), '0'::bigint)))) OR (oc.cnt_audio = ((COALESCE((sum(oc2.cnt_audio)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 7) THEN 1 ELSE 0 END)), '0'::bigint)))) OR (oc.cnt_other = ((COALESCE((sum(oc2.cnt_other)), '0'::bigint) + COALESCE((sum(CASE WHEN (fi.filesort_id = 8) THEN 1 ELSE 0 END)), '0'::bigint)))) OR ((oc.size)::numeric = ((COALESCE((sum(oc2.size)), '0'::numeric) + COALESCE((sum(fi.filesize)), '0'::numeric)))) OR (oc.cnt_direct_folders = (COALESCE((count(*)), '0'::bigint))) OR (oc.cnt_direct_files = (COALESCE((count(*)), '0'::bigint))))
  • Rows Removed by Filter: 5872496
2. 8,905.992 8,905.992 ↑ 1.0 6,565,601 1

Index Scan using pk_containers on containers oc (cost=0.43..392,646.24 rows=6,594,733 width=148) (actual time=0.039..8,905.992 rows=6,565,601 loops=1)

  • Filter: (objecttype_id = 4)
  • Rows Removed by Filter: 1935322
3. 177.520 50,590.321 ↑ 4.3 693,106 1

Materialize (cost=4,764,304.06..4,779,332.48 rows=3,005,684 width=160) (actual time=49,822.710..50,590.321 rows=693,106 loops=1)

4. 2,004.970 50,412.801 ↑ 4.3 693,106 1

Sort (cost=4,764,304.06..4,771,818.27 rows=3,005,684 width=160) (actual time=49,822.707..50,412.801 rows=693,106 loops=1)

  • Sort Key: (COALESCE(fi.folder_id, f.parent_id))
  • Sort Method: external sort Disk: 175400kB
5. 2,258.881 48,407.831 ↑ 4.3 693,106 1

Merge Full Join (cost=3,144,190.84..3,732,038.05 rows=3,005,684 width=160) (actual time=32,732.585..48,407.831 rows=693,106 loops=1)

  • Merge Cond: (f.parent_id = fi.folder_id)
6. 4,294.275 31,029.952 ↓ 17.2 315,545 1

GroupAggregate (cost=2,154,184.82..2,351,382.14 rows=18,343 width=112) (actual time=25,062.549..31,029.952 rows=315,545 loops=1)

  • Group Key: f.parent_id
7. 11,324.181 26,735.677 ↑ 1.0 6,565,601 1

Sort (cost=2,154,184.82..2,170,598.82 rows=6,565,601 width=48) (actual time=25,062.511..26,735.677 rows=6,565,601 loops=1)

  • Sort Key: f.parent_id
  • Sort Method: external merge Disk: 372272kB
8. 5,574.695 15,411.496 ↑ 1.0 6,565,601 1

Merge Join (cost=150.38..804,832.55 rows=6,565,601 width=48) (actual time=0.034..15,411.496 rows=6,565,601 loops=1)

  • Merge Cond: (oc2.id = f.id)
9. 5,229.584 5,229.584 ↑ 1.0 8,500,923 1

Index Scan using pk_containers on containers oc2 (cost=0.43..371,393.94 rows=8,500,923 width=48) (actual time=0.015..5,229.584 rows=8,500,923 loops=1)

10. 4,607.217 4,607.217 ↑ 1.0 6,565,601 1

Index Scan using pk_folders on folders f (cost=0.43..330,151.55 rows=6,565,601 width=16) (actual time=0.014..4,607.217 rows=6,565,601 loops=1)

11. 202.823 15,118.998 ↓ 12.7 415,569 1

Materialize (cost=990,006.02..1,200,167.52 rows=32,772 width=112) (actual time=7,669.966..15,118.998 rows=415,569 loops=1)

12. 5,789.263 14,916.175 ↓ 12.7 415,569 1

GroupAggregate (cost=990,006.02..1,199,757.87 rows=32,772 width=112) (actual time=7,669.946..14,916.175 rows=415,569 loops=1)

  • Group Key: fi.folder_id
13. 6,152.982 9,126.912 ↑ 1.0 4,186,844 1

Sort (cost=990,006.02..1,000,473.13 rows=4,186,844 width=18) (actual time=7,669.844..9,126.912 rows=4,186,844 loops=1)

  • Sort Key: fi.folder_id
  • Sort Method: external merge Disk: 139160kB
14. 2,973.930 2,973.930 ↑ 1.0 4,186,844 1

Seq Scan on files fi (cost=0.00..271,910.44 rows=4,186,844 width=18) (actual time=0.048..2,973.930 rows=4,186,844 loops=1)