diff --git a/db/migrate/20180309180053_impression_index.rb b/db/migrate/20180309180053_impression_index.rb
new file mode 100644
index 0000000000..c96e672a70
--- /dev/null
+++ b/db/migrate/20180309180053_impression_index.rb
@@ -0,0 +1,6 @@
+class ImpressionIndex < ActiveRecord::Migration
+  def change
+    add_index "impressions", ["impressionable_type"], name: "index_impressions_on_impressionable_type"
+    add_index "impressions", ["impressionable_id"], name: "index_impressions_on_impressionable_id"
+  end
+end
diff --git a/db/schema.rb.example b/db/schema.rb.example
index 7fa21e8c19..2143128bc5 100644
--- a/db/schema.rb.example
+++ b/db/schema.rb.example
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180220180926) do
+ActiveRecord::Schema.define(version: 20180309180053) do
 
   create_table "answer_selections", force: true do |t|
     t.integer "user_id"
@@ -42,7 +42,7 @@ ActiveRecord::Schema.define(version: 20180220180926) do
     t.text    "comment",   limit: 2147483647,              null: false
     t.string  "hostname",  limit: 128,        default: "", null: false
     t.integer "timestamp",                    default: 0,  null: false
-    t.integer "status",    limit: 1,          default: 1,  null: false
+    t.integer "status",                       default: 1,  null: false
     t.integer "format",    limit: 2,          default: 0,  null: false
     t.string  "thread"
     t.string  "name",      limit: 60
@@ -51,7 +51,7 @@ ActiveRecord::Schema.define(version: 20180220180926) do
     t.integer "aid",                          default: 0,  null: false
   end
 
-  add_index "comments", ["comment"], name: "index_comments_on_comment", type: :fulltext if ActiveRecord::Base.connection.adapter_name == 'Mysql2'
+  add_index "comments", ["comment"], name: "index_comments_on_comment", type: :fulltext
   add_index "comments", ["nid"], name: "index_comments_nid", using: :btree
   add_index "comments", ["pid"], name: "index_comments_pid", using: :btree
   add_index "comments", ["status"], name: "index_comments_status", using: :btree
@@ -190,11 +190,13 @@ ActiveRecord::Schema.define(version: 20180220180926) do
   add_index "impressions", ["controller_name", "action_name", "ip_address"], name: "controlleraction_ip_index", using: :btree
   add_index "impressions", ["controller_name", "action_name", "request_hash"], name: "controlleraction_request_index", using: :btree
   add_index "impressions", ["controller_name", "action_name", "session_hash"], name: "controlleraction_session_index", using: :btree
+  add_index "impressions", ["impressionable_id"], name: "index_impressions_on_impressionable_id", using: :btree
   add_index "impressions", ["impressionable_type", "impressionable_id", "ip_address"], name: "poly_ip_index", using: :btree
   add_index "impressions", ["impressionable_type", "impressionable_id", "params"], name: "poly_params_request_index", length: {"impressionable_type"=>nil, "impressionable_id"=>nil, "params"=>255}, using: :btree
   add_index "impressions", ["impressionable_type", "impressionable_id", "request_hash"], name: "poly_request_index", using: :btree
   add_index "impressions", ["impressionable_type", "impressionable_id", "session_hash"], name: "poly_session_index", using: :btree
   add_index "impressions", ["impressionable_type", "message", "impressionable_id"], name: "impressionable_type_message_index", length: {"impressionable_type"=>nil, "message"=>255, "impressionable_id"=>nil}, using: :btree
+  add_index "impressions", ["impressionable_type"], name: "index_impressions_on_impressionable_type", using: :btree
   add_index "impressions", ["user_id"], name: "index_impressions_on_user_id", using: :btree
 
   create_table "node", primary_key: "nid", force: true do |t|
@@ -256,7 +258,7 @@ ActiveRecord::Schema.define(version: 20180220180926) do
     t.integer "status",                       default: 1
   end
 
-  add_index "node_revisions", ["body", "title"], name: "index_node_revisions_on_body_and_title", type: :fulltext if ActiveRecord::Base.connection.adapter_name == 'Mysql2'
+  add_index "node_revisions", ["body", "title"], name: "index_node_revisions_on_body_and_title", type: :fulltext
   add_index "node_revisions", ["nid"], name: "index_node_revisions_nid", using: :btree
   add_index "node_revisions", ["timestamp"], name: "index_node_revisions_timestamp", using: :btree
   add_index "node_revisions", ["uid"], name: "index_node_revisions_uid", using: :btree
@@ -348,7 +350,7 @@ ActiveRecord::Schema.define(version: 20180220180926) do
   add_index "rusers", ["email"], name: "index_rusers_on_email", using: :btree
   add_index "rusers", ["persistence_token"], name: "index_rusers_on_persistence_token", using: :btree
   add_index "rusers", ["status"], name: "index_rusers_on_status", using: :btree
-  add_index "rusers", ["username", "bio"], name: "index_rusers_on_username_and_bio", type: :fulltext if ActiveRecord::Base.connection.adapter_name == 'Mysql2'
+  add_index "rusers", ["username", "bio"], name: "index_rusers_on_username_and_bio", type: :fulltext
   add_index "rusers", ["username"], name: "index_rusers_on_username", using: :btree
 
   create_table "tag_selections", id: false, force: true do |t|