fix trigram index on pools

db/migrate/20170414233426_fix_trigram_index_on_pools.rb

@@ -0,0 +1,10 @@
+class FixTrigramIndexOnPools < ActiveRecord::Migration
+  def up
+    execute "drop index index_pools_on_name_trgm"
+    execute "create index index_pools_on_name_trgm on pools using gin (lower(name) gin_trgm_ops)"
+  end
+
+  def down
+    execute "drop index index_pools_on_name_trgm"
+  end
+ end