Revert "Remove less efficient sync indexes (#1901)"

This reverts commit be6a683.

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_12_18_062046) do
+ActiveRecord::Schema.define(version: 2020_12_18_061336) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "ltree"
@@ -69,6 +69,7 @@
     t.index ["patient_id", "scheduled_date"], name: "index_appointments_on_patient_id_and_scheduled_date", order: { scheduled_date: :desc }
     t.index ["patient_id", "updated_at"], name: "index_appointments_on_patient_id_and_updated_at"
     t.index ["patient_id"], name: "index_appointments_on_patient_id"
+    t.index ["updated_at"], name: "index_appointments_on_updated_at"
     t.index ["user_id"], name: "index_appointments_on_user_id"
   end
 
@@ -89,6 +90,7 @@
     t.index ["patient_id", "updated_at"], name: "index_blood_pressures_on_patient_id_and_updated_at"
     t.index ["patient_id"], name: "index_blood_pressures_on_patient_id"
     t.index ["recorded_at"], name: "index_blood_pressures_on_recorded_at"
+    t.index ["updated_at"], name: "index_blood_pressures_on_updated_at"
     t.index ["user_id"], name: "index_blood_pressures_on_user_id"
   end
 
@@ -109,6 +111,7 @@
     t.index ["facility_id"], name: "index_blood_sugars_on_facility_id"
     t.index ["patient_id", "updated_at"], name: "index_blood_sugars_on_patient_id_and_updated_at"
     t.index ["patient_id"], name: "index_blood_sugars_on_patient_id"
+    t.index ["updated_at"], name: "index_blood_sugars_on_updated_at"
     t.index ["user_id"], name: "index_blood_sugars_on_user_id"
   end
 
@@ -406,6 +409,7 @@
     t.index ["registration_facility_id"], name: "index_patients_on_registration_facility_id"
     t.index ["registration_user_id"], name: "index_patients_on_registration_user_id"
     t.index ["reminder_consent"], name: "index_patients_on_reminder_consent"
+    t.index ["updated_at"], name: "index_patients_on_updated_at"
   end
 
   create_table "phone_number_authentications", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
@@ -446,6 +450,7 @@
     t.index ["patient_id", "updated_at"], name: "index_prescription_drugs_on_patient_id_and_updated_at"
     t.index ["patient_id"], name: "index_prescription_drugs_on_patient_id"
     t.index ["teleconsultation_id"], name: "index_prescription_drugs_on_teleconsultation_id"
+    t.index ["updated_at"], name: "index_prescription_drugs_on_updated_at"
     t.index ["user_id"], name: "index_prescription_drugs_on_user_id"
   end