diff --git a/db/migrate/20190908035317_add_indexes_to_pools.rb b/db/migrate/20190908035317_add_indexes_to_pools.rb
new file mode 100644
index 000000000..a48f84c7a
--- /dev/null
+++ b/db/migrate/20190908035317_add_indexes_to_pools.rb
@@ -0,0 +1,7 @@
+class AddIndexesToPools < ActiveRecord::Migration[6.0]
+  def change
+    add_index :pools, :category
+    add_index :pools, :is_deleted
+    add_index :pools, :post_ids, using: :gin
+  end
+end
diff --git a/db/structure.sql b/db/structure.sql
index 352a75b96..ad93a29c2 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -6525,6 +6525,13 @@ CREATE INDEX index_notes_on_post_id ON public.notes USING btree (post_id);
 CREATE UNIQUE INDEX index_pixiv_ugoira_frame_data_on_post_id ON public.pixiv_ugoira_frame_data USING btree (post_id);
 
 
+--
+-- Name: index_pools_on_category; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX index_pools_on_category ON public.pools USING btree (category);
+
+
 --
 -- Name: index_pools_on_creator_id; Type: INDEX; Schema: public; Owner: -
 --
@@ -6532,6 +6539,13 @@ CREATE UNIQUE INDEX index_pixiv_ugoira_frame_data_on_post_id ON public.pixiv_ugo
 CREATE INDEX index_pools_on_creator_id ON public.pools USING btree (creator_id);
 
 
+--
+-- Name: index_pools_on_is_deleted; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX index_pools_on_is_deleted ON public.pools USING btree (is_deleted);
+
+
 --
 -- Name: index_pools_on_lower_name; Type: INDEX; Schema: public; Owner: -
 --
@@ -6553,6 +6567,13 @@ CREATE INDEX index_pools_on_name ON public.pools USING btree (name);
 CREATE INDEX index_pools_on_name_trgm ON public.pools USING gin (name public.gin_trgm_ops);
 
 
+--
+-- Name: index_pools_on_post_ids; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX index_pools_on_post_ids ON public.pools USING gin (post_ids);
+
+
 --
 -- Name: index_pools_on_updated_at; Type: INDEX; Schema: public; Owner: -
 --
@@ -7315,6 +7336,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20190829052629'),
 ('20190829055758'),
 ('20190902224045'),
-('20190908031103');
+('20190908031103'),
+('20190908035317');