Add sql index

src/CoreBundle/Entity/TrackEAttempt.php

@@ -16,7 +16,7 @@ use Doctrine\ORM\Mapping as ORM;
  *      @ORM\Index(name="exe_id", columns={"exe_id"}),
  *      @ORM\Index(name="user_id", columns={"user_id"}),
  *      @ORM\Index(name="question_id", columns={"question_id"}),
- *      @ORM\Index(name="session_id", columns={"session_id"})
+ *      @ORM\Index(name="idx_track_e_attempt_tms", columns={"tms"}),
  *  }
  * )
  * @ORM\Entity

src/CoreBundle/Migrations/Schema/V200/Version20.php

@@ -803,6 +803,11 @@ class Version20 extends AbstractMigrationChamilo
             $this->addSql('ALTER TABLE usergroup ADD author_id INT DEFAULT NULL');
         }
 
+        $table = $schema->getTable('track_e_attempt');
+        if (!$table->hasIndex('idx_track_e_attempt_tms')) {
+            $this->addSql('CREATE INDEX idx_track_e_attempt_tms ON track_e_attempt (tms)');
+        }
+
         $this->addSql('ALTER TABLE c_group_info ADD CONSTRAINT FK_CE06532491D79BD3 FOREIGN KEY (c_id) REFERENCES course (id);');
 
         $this->addSql('ALTER TABLE course_category CHANGE auth_course_child auth_course_child VARCHAR(40) DEFAULT NULL');