Remove created_at / updated_at column definitions since these duplicate t.timestamps

db/migrate/20160822153055_create_issues_and_reports.rb

@@ -10,10 +10,7 @@ class CreateIssuesAndReports < ActiveRecord::Migration
       t.string :issue_type
       t.datetime :resolved_at
       t.integer :resolved_by
-      t.datetime :created_at
-      t.datetime :updated_at
       t.integer :updated_by
-
       t.timestamps :null => false
     end
 
@@ -26,9 +23,6 @@ class CreateIssuesAndReports < ActiveRecord::Migration
       t.integer :issue_id
       t.integer :reporter_user_id
       t.text :details, :null => false
-      t.datetime :created_at
-      t.datetime :updated_at
-
       t.timestamps :null => false
     end
 

db/migrate/20160822153115_create_issue_comments.rb

@@ -4,7 +4,6 @@ class CreateIssueComments < ActiveRecord::Migration
       t.integer :issue_id
       t.integer :commenter_user_id
       t.text :body
-      t.datetime :created_at
       t.boolean :reassign
       t.timestamps :null => false
     end

db/structure.sql

@@ -694,8 +694,8 @@ CREATE TABLE issue_comments (
     issue_id integer,
     commenter_user_id integer,
     body text,
-    created_at timestamp without time zone NOT NULL,
     reassign boolean,
+    created_at timestamp without time zone NOT NULL,
     updated_at timestamp without time zone NOT NULL
 );
 
@@ -732,9 +732,9 @@ CREATE TABLE issues (
     issue_type character varying,
     resolved_at timestamp without time zone,
     resolved_by integer,
+    updated_by integer,
     created_at timestamp without time zone NOT NULL,
     updated_at timestamp without time zone NOT NULL,
-    updated_by integer,
     report_count integer DEFAULT 0
 );