These indexes exist, but can’t be used. You should recreate them.
| Name |
|---|
| idx_card_progresses_deck_id_id v2 |
|
| card_progresses_user_id_id_idx v2 |
|
| trgm_idx_notes_back_side v2 |
|
| trgm_idx_notes_front_side v2 |
|
These indexes exist, but aren’t needed. Remove them for faster writes.
rails generate migration remove_unneeded_indexes
And paste
remove_index :motor_alert_locks, name: "index_motor_alert_locks_on_alert_id", column: :alert_id remove_index :notes, name: "index_notes_on_id_asc_and_deck_id", column: [:id, :deck_id] remove_index :streak_day_freezes, name: "index_streak_day_freezes_on_streak_id", column: :streak_id remove_index :streak_day_freezes, name: "index_streak_day_freezes_on_user_id", column: :user_id remove_index :taggings, name: "index_taggings_on_tag_id", column: :tag_id remove_index :taggings, name: "index_taggings_on_taggable_id", column: :taggable_id remove_index :taggings, name: "index_taggings_on_taggable_type", column: :taggable_type remove_index :taggings, name: "index_taggings_on_tagger_id", column: :tagger_id remove_index :user_social_links, name: "index_user_social_links_on_user_id", column: :user_id
| Details |
|---|
On motor_alert_locks
index_motor_alert_locks_on_alert_id (alert_id)is covered by index_motor_alert_locks_on_alert_id_and_lock_timestamp (alert_id, lock_timestamp) |
On notes
index_notes_on_id_asc_and_deck_id (id, deck_id)is covered by notes_pkey (id, deck_id) |
On streak_day_freezes
index_streak_day_freezes_on_streak_id (streak_id)is covered by index_streak_day_freezes_on_streak_id_and_freeze_date (streak_id, freeze_date) |
On streak_day_freezes
index_streak_day_freezes_on_user_id (user_id)is covered by index_streak_day_freezes_on_user_id_and_freeze_date (user_id, freeze_date) |
On taggings
index_taggings_on_tag_id (tag_id)is covered by taggings_idx (tag_id, taggable_id, taggable_type, context, tagger_id, tagger_type) |
On taggings
index_taggings_on_taggable_id (taggable_id)is covered by taggings_idy (taggable_id, taggable_type, tagger_id, context) |
On taggings
index_taggings_on_taggable_type (taggable_type)is covered by index_taggings_on_taggable_type_and_taggable_id (taggable_type, taggable_id) |
On taggings
index_taggings_on_tagger_id (tagger_id)is covered by index_taggings_on_tagger_id_and_tagger_type (tagger_id, tagger_type) |
On user_social_links
index_user_social_links_on_user_id (user_id)is covered by index_user_social_links_on_user_id_and_social_provider_id (user_id, social_provider_id) |
Slow queries take 20 ms or more on average and have been called at least 100 times.
Explain queries to see where to add indexes.
| Total Time | Average Time | Calls |
|---|---|---|
| 30,368 min 5% | 425 ms | 4,285,775 ankipro |
|
||
| 5,458 min 0.8% | 30 ms | 10,766,192 ankipro |
|
||
| 5,300 min 0.8% | 26 ms | 12,330,689 ankipro |
|
||
| 5,155 min 0.8% | 34 ms | 9,088,342 ankipro |
|
||
| 4,737 min 0.7% | 38 ms | 7,517,271 ankipro |
|
||
| 4,259 min 0.7% | 41 ms | 6,255,603 ankipro |
|
||
| 3,786 min 0.6% | 43 ms | 5,281,031 ankipro |
|
||
| 3,401 min 0.5% | 46 ms | 4,472,933 ankipro |
|
||
| 3,123 min 0.5% | 47 ms | 3,956,695 ankipro |
|
||
| 2,834 min 0.4% | 50 ms | 3,415,426 ankipro |
|
||
| 2,475 min 0.4% | 51 ms | 2,929,478 ankipro |
|
||
| 2,184 min 0.3% | 53 ms | 2,490,934 ankipro |
|
||
| 1,968 min 0.3% | 55 ms | 2,154,704 ankipro |
|
||
| 1,923 min 0.3% | 58 ms | 1,995,502 ankipro |
|
||
| 1,559 min 0.2% | 58 ms | 1,602,489 ankipro |
|
||
| 1,503 min 0.2% | 62 ms | 1,463,796 ankipro |
|
||
| 1,347 min 0.2% | 61 ms | 1,320,730 ankipro |
|
||
| 1,262 min 0.2% | 66 ms | 1,143,826 ankipro |
|
||
| 1,197 min 0.2% | 67 ms | 1,070,279 ankipro |
|
||
| 1,135 min 0.2% | 62 ms | 1,098,140 ankipro |
|
||
| 1,031 min 0.2% | 64 ms | 961,675 ankipro |
|
||
| 1,000 min 0.2% | 23 ms | 2,623,272 ankipro |
|
||
| 954 min 0.1% | 67 ms | 857,997 ankipro |
|
||
| 919 min 0.1% | 85 ms | 647,357 ankipro |
|
||
| 843 min 0.1% | 66 ms | 766,470 ankipro |
|
||
| 769 min 0.1% | 67 ms | 687,604 ankipro |
|
||
| 743 min 0.1% | 68 ms | 660,021 ankipro |
|
||
| 680 min 0.1% | 69 ms | 595,399 ankipro |
|
||