These indexes exist, but can’t be used. You should recreate them.
| Name |
|---|
| card_progresses_user_id_id_idx v2 |
|
| idx_card_progresses_deck_id_id 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 |
|---|---|---|
| 23,848 min 4% | 415 ms | 3,450,341 ankipro |
|
||
| 7,447 min 1% | 22 ms | 20,366,175 ankipro |
|
||
| 4,634 min 0.8% | 30 ms | 9,300,738 ankipro |
|
||
| 4,540 min 0.8% | 25 ms | 10,748,241 ankipro |
|
||
| 4,408 min 0.7% | 33 ms | 7,898,944 ankipro |
|
||
| 4,015 min 0.7% | 37 ms | 6,486,888 ankipro |
|
||
| 3,622 min 0.6% | 40 ms | 5,419,313 ankipro |
|
||
| 3,185 min 0.5% | 42 ms | 4,533,244 ankipro |
|
||
| 2,848 min 0.5% | 45 ms | 3,804,417 ankipro |
|
||
| 2,597 min 0.4% | 46 ms | 3,354,944 ankipro |
|
||
| 2,454 min 0.4% | 24 ms | 6,172,924 ankipro |
|
||
| 2,363 min 0.4% | 49 ms | 2,905,356 ankipro |
|
||
| 2,241 min 0.4% | 23 ms | 5,856,719 ankipro |
|
||
| 2,075 min 0.3% | 50 ms | 2,485,630 ankipro |
|
||
| 1,831 min 0.3% | 52 ms | 2,117,281 ankipro |
|
||
| 1,665 min 0.3% | 54 ms | 1,853,474 ankipro |
|
||
| 1,589 min 0.3% | 23 ms | 4,237,325 ankipro |
|
||
| 1,588 min 0.3% | 57 ms | 1,685,123 ankipro |
|
||
| 1,285 min 0.2% | 57 ms | 1,361,319 ankipro |
|
||
| 1,252 min 0.2% | 61 ms | 1,232,112 ankipro |
|
||
| 1,144 min 0.2% | 61 ms | 1,125,330 ankipro |
|
||
| 1,065 min 0.2% | 66 ms | 971,338 ankipro |
|
||
| 1,050 min 0.2% | 23 ms | 2,705,550 ankipro |
|
||
| 983 min 0.2% | 66 ms | 895,169 ankipro |
|
||
| 954 min 0.2% | 61 ms | 930,884 ankipro |
|
||
| 888 min 0.1% | 56 ms | 958,160 ankipro |
|
||
| 845 min 0.1% | 63 ms | 810,529 ankipro |
|
||
| 794 min 0.1% | 66 ms | 723,359 ankipro |
|
||
| 717 min 0.1% | 77 ms | 556,722 ankipro |
|
||
| 716 min 0.1% | 31 ms | 1,396,366 ankipro |
|
||
| 705 min 0.1% | 65 ms | 649,096 ankipro |
|
||