explain.depesz.com

PostgreSQL's explain analyze made readable

Result: HzCJ

Settings
# exclusive inclusive rows x rows loops node
1. 1.880 10.353 ↑ 5.2 72 1

GroupAggregate (cost=2,170.63..2,206.16 rows=374 width=610) (actual time=8.601..10.353 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. 2.117 8.473 ↑ 1.1 344 1

Sort (cost=2,170.63..2,171.56 rows=374 width=585) (actual time=8.431..8.473 rows=344 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: 171kB
3. 0.077 6.356 ↑ 1.1 344 1

Nested Loop Left Join (cost=306.28..2,154.65 rows=374 width=585) (actual time=4.404..6.356 rows=344 loops=1)

4. 0.044 4.983 ↑ 1.0 72 1

Nested Loop Left Join (cost=305.56..994.81 rows=72 width=545) (actual time=4.388..4.983 rows=72 loops=1)

  • Join Filter: (clip_bookmark.clip_id = clip.id)
5. 0.069 4.723 ↑ 1.0 72 1

Hash Join (cost=305.56..941.60 rows=72 width=529) (actual time=4.156..4.723 rows=72 loops=1)

  • Hash Cond: (clip.account_id = account.id)
6. 0.044 0.692 ↑ 1.0 72 1

Nested Loop (cost=0.42..635.48 rows=72 width=516) (actual time=0.156..0.692 rows=72 loops=1)

7. 0.007 0.288 ↑ 1.0 72 1

Limit (cost=0.00..26.18 rows=72 width=342) (actual time=0.143..0.288 rows=72 loops=1)

8. 0.281 0.281 ↑ 3,590.5 72 1

Seq Scan on clip (cost=0.00..93,988.12 rows=258,513 width=342) (actual time=0.143..0.281 rows=72 loops=1)

  • Filter: (workspace_id = '8271b633-a524-46e8-9620-c2d15c7ce3c6'::uuid)
  • Rows Removed by Filter: 295
9. 0.360 0.360 ↑ 1.0 1 72

Index Scan using clip_media_pkey on clip_media (cost=0.42..8.44 rows=1 width=206) (actual time=0.005..0.005 rows=1 loops=72)

  • Index Cond: (id = clip.media_id)
10. 2.186 3.962 ↓ 1.0 6,098 1

Hash (cost=228.95..228.95 rows=6,095 width=29) (actual time=3.962..3.962 rows=6,098 loops=1)

  • Buckets: 8192 Batches: 1 Memory Usage: 433kB
11. 1.776 1.776 ↓ 1.0 6,098 1

Seq Scan on account (cost=0.00..228.95 rows=6,095 width=29) (actual time=0.004..1.776 rows=6,098 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. 0.230 0.230 ↓ 0.0 0 1

Seq Scan on clip_bookmark (cost=0.00..49.96 rows=3 width=16) (actual time=0.230..0.230 rows=0 loops=1)

  • Filter: (account_id = '505e48ea-de53-46a3-9d43-b974ecdedafd'::uuid)
  • Rows Removed by Filter: 2477
14. 0.178 1.296 ↑ 1.0 5 72

Nested Loop Left Join (cost=0.72..16.06 rows=5 width=56) (actual time=0.007..0.018 rows=5 loops=72)

15. 0.432 0.432 ↑ 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=0.005..0.006 rows=5 loops=72)

  • Index Cond: (clip_id = clip.id)
  • Heap Fetches: 343
16. 0.686 0.686 ↑ 1.0 1 343

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=343)

  • Index Cond: (id = clip_tag.tag_id)