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 |
|---|---|---|
| 23,663 min 4% | 415 ms | 3,424,785 ankipro |
|
||
| 7,402 min 1% | 22 ms | 20,242,407 ankipro |
|
||
| 4,607 min 0.8% | 30 ms | 9,247,131 ankipro |
|
||
| 4,514 min 0.8% | 25 ms | 10,689,618 ankipro |
|
||
| 4,382 min 0.7% | 33 ms | 7,856,402 ankipro |
|
||
| 3,991 min 0.7% | 37 ms | 6,448,863 ankipro |
|
||
| 3,601 min 0.6% | 40 ms | 5,390,226 ankipro |
|
||
| 3,164 min 0.5% | 42 ms | 4,506,445 ankipro |
|
||
| 2,830 min 0.5% | 45 ms | 3,780,150 ankipro |
|
||
| 2,581 min 0.4% | 46 ms | 3,335,276 ankipro |
|
||
| 2,440 min 0.4% | 24 ms | 6,137,912 ankipro |
|
||
| 2,349 min 0.4% | 49 ms | 2,888,990 ankipro |
|
||
| 2,229 min 0.4% | 23 ms | 5,822,535 ankipro |
|
||
| 2,062 min 0.3% | 50 ms | 2,470,693 ankipro |
|
||
| 1,820 min 0.3% | 52 ms | 2,105,257 ankipro |
|
||
| 1,655 min 0.3% | 54 ms | 1,843,095 ankipro |
|
||
| 1,580 min 0.3% | 23 ms | 4,211,491 ankipro |
|
||
| 1,577 min 0.3% | 57 ms | 1,674,233 ankipro |
|
||
| 1,276 min 0.2% | 57 ms | 1,352,419 ankipro |
|
||
| 1,243 min 0.2% | 61 ms | 1,222,056 ankipro |
|
||
| 1,138 min 0.2% | 61 ms | 1,118,176 ankipro |
|
||
| 1,059 min 0.2% | 66 ms | 965,748 ankipro |
|
||
| 1,045 min 0.2% | 23 ms | 2,690,945 ankipro |
|
||
| 975 min 0.2% | 66 ms | 888,396 ankipro |
|
||
| 947 min 0.2% | 61 ms | 924,725 ankipro |
|
||
| 885 min 0.1% | 56 ms | 949,883 ankipro |
|
||
| 840 min 0.1% | 63 ms | 805,446 ankipro |
|
||
| 789 min 0.1% | 66 ms | 718,999 ankipro |
|
||
| 712 min 0.1% | 31 ms | 1,388,328 ankipro |
|
||
| 709 min 0.1% | 77 ms | 553,203 ankipro |
|
||
| 701 min 0.1% | 65 ms | 645,367 ankipro |
|
||