Add index to sort by position

db/migrate/20251029161222_add_index_on_collection_and_position_to_columns.rb

@@ -0,0 +1,5 @@
+class AddIndexOnCollectionAndPositionToColumns < ActiveRecord::Migration[8.2]
+  def change
+    add_index :columns, [ :collection_id, :position ]
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.2].define(version: 2025_10_29_142418) do
+ActiveRecord::Schema[8.2].define(version: 2025_10_29_161222) do
   create_table "accesses", force: :cascade do |t|
     t.datetime "accessed_at"
     t.integer "collection_id", null: false
@@ -193,6 +193,7 @@ ActiveRecord::Schema[8.2].define(version: 2025_10_29_142418) do
     t.string "name", null: false
     t.integer "position", default: 0, null: false
     t.datetime "updated_at", null: false
+    t.index ["collection_id", "position"], name: "index_columns_on_collection_id_and_position"
     t.index ["collection_id"], name: "index_columns_on_collection_id"
   end
 

db/schema_cache.yml

@@ -1929,6 +1929,23 @@ indexes:
     nulls_not_distinct:
     comment:
     valid: true
+  - !ruby/object:ActiveRecord::ConnectionAdapters::IndexDefinition
+    table: columns
+    name: index_columns_on_collection_id_and_position
+    unique: false
+    columns:
+    - collection_id
+    - position
+    lengths: {}
+    orders: {}
+    opclasses: {}
+    where:
+    type:
+    using:
+    include:
+    nulls_not_distinct:
+    comment:
+    valid: true
   comments:
   - !ruby/object:ActiveRecord::ConnectionAdapters::IndexDefinition
     table: comments
@@ -2828,4 +2845,4 @@ indexes:
     nulls_not_distinct:
     comment:
     valid: true
-version: 20251029142418
+version: 20251029161222