explain.depesz.com

PostgreSQL's explain analyze made readable

Result: MMTk : Base old no sort

Settings
# exclusive inclusive rows x rows loops node
1. 1.501 7.920 ↑ 5.2 72 1

GroupAggregate (cost=2,167.42..2,202.95 rows=374 width=610) (actual time=6.443..7.920 rows=72 loops=1)

  • Group Key: clip.created_at, clip.id, clip.account_id, clip.workspace_id, clip.width, clip.height, clip.size, clip.ext, clip.type, clip.duration, clip.rotation, clip.audio, clip.remote, clip.status, clip.recorded_at, clip.updated_at, clip.digitized, clip.hash, clip.synced, clip.description, clip.source, clip.imported_name, clip_media.playback, clip_media.preview, clip_media.seek, clip_media.image, account.first_name, account.last_name, clip_bookmark.clip_id
2. 1.616 6.419 ↑ 1.0 371 1

Sort (cost=2,167.42..2,168.35 rows=374 width=585) (actual time=6.388..6.419 rows=371 loops=1)

  • Sort Key: clip.created_at DESC, clip.id DESC, clip.account_id, clip.workspace_id, clip.width, clip.height, clip.size, clip.ext, clip.type, clip.duration, clip.rotation, clip.audio, clip.remote, clip.status, clip.recorded_at, clip.updated_at, clip.digitized, clip.hash, clip.synced, clip.description, clip.source, clip.imported_name, clip_media.playback, clip_media.preview, clip_media.seek, clip_media.image, account.first_name, account.last_name, clip_bookmark.clip_id
  • Sort Method: quicksort Memory: 216kB
3. 0.050 4.803 ↑ 1.0 371 1

Nested Loop Left Join (cost=297.80..2,151.43 rows=374 width=585) (actual time=2.620..4.803 rows=371 loops=1)

4. 0.030 3.601 ↑ 1.0 72 1

Nested Loop Left Join (cost=297.08..991.60 rows=72 width=545) (actual time=2.607..3.601 rows=72 loops=1)

  • Join Filter: (clip_bookmark.clip_id = clip.id)
5. 0.050 3.355 ↑ 1.0 72 1

Hash Join (cost=297.08..938.39 rows=72 width=529) (actual time=2.382..3.355 rows=72 loops=1)

  • Hash Cond: (clip.account_id = account.id)
6. 0.017 1.074 ↑ 1.0 72 1

Nested Loop (cost=0.42..640.75 rows=72 width=516) (actual time=0.132..1.074 rows=72 loops=1)

7. 0.007 0.769 ↑ 1.0 72 1

Limit (cost=0.00..31.45 rows=72 width=342) (actual time=0.119..0.769 rows=72 loops=1)

8. 0.762 0.762 ↑ 3,038.7 72 1

Seq Scan on clip (cost=0.00..95,558.55 rows=218,787 width=342) (actual time=0.119..0.762 rows=72 loops=1)

  • Filter: (visible AND (NOT inactive) AND (status <> 'created'::text) AND (workspace_id = '8271b633-a524-46e8-9620-c2d15c7ce3c6'::uuid))
  • Rows Removed by Filter: 2017
9. 0.288 0.288 ↑ 1.0 1 72

Index Scan using clip_media_pkey on clip_media (cost=0.42..8.44 rows=1 width=206) (actual time=0.004..0.004 rows=1 loops=72)

  • Index Cond: (id = clip.media_id)
10. 1.268 2.231 ↓ 1.1 6,112 1

Hash (cost=225.18..225.18 rows=5,718 width=29) (actual time=2.231..2.231 rows=6,112 loops=1)

  • Buckets: 8192 Batches: 1 Memory Usage: 434kB
11. 0.963 0.963 ↓ 1.1 6,112 1

Seq Scan on account (cost=0.00..225.18 rows=5,718 width=29) (actual time=0.002..0.963 rows=6,112 loops=1)

12. 0.000 0.216 ↓ 0.0 0 72

Materialize (cost=0.00..49.98 rows=3 width=16) (actual time=0.003..0.003 rows=0 loops=72)

13. 0.223 0.223 ↓ 0.0 0 1

Seq Scan on clip_bookmark (cost=0.00..49.96 rows=3 width=16) (actual time=0.223..0.223 rows=0 loops=1)

  • Filter: (account_id = '505e48ea-de53-46a3-9d43-b974ecdedafd'::uuid)
  • Rows Removed by Filter: 2477
14. 0.054 1.152 ↑ 1.0 5 72

Nested Loop Left Join (cost=0.72..16.06 rows=5 width=56) (actual time=0.006..0.016 rows=5 loops=72)

15. 0.360 0.360 ↑ 1.0 5 72

Index Only Scan using clip_tag_clip_id_tag_id_key on clip_tag (cost=0.43..14.46 rows=5 width=32) (actual time=0.004..0.005 rows=5 loops=72)

  • Index Cond: (clip_id = clip.id)
  • Heap Fetches: 369
16. 0.738 0.738 ↑ 1.0 1 369

Index Scan using tag_pkey on tag (cost=0.29..0.31 rows=1 width=40) (actual time=0.002..0.002 rows=1 loops=369)

  • Index Cond: (id = clip_tag.tag_id)
Planning time : 1.151 ms