Add index to accelerate query - refs #8200

10 years ago · dceb5164e1
parent 2524fc9f54
commit dceb5164e1
1 changed files with 3 additions and 0 deletions
--- a/app/Migrations/Schema/V110/Version20151221150100.php
+++ b/app/Migrations/Schema/V110/Version20151221150100.php
@ -16,6 +16,9 @@ class Version20151221150100 extends AbstractMigrationChamilo
     */
    public function up(Schema $schema)
    {
+        $this->addSql(" 
+            ALTER TABLE c_quiz_answer ADD INDEX idx_quiz_qid (question_id)");
+
        $this->addSql("
            UPDATE track_e_attempt a
            INNER JOIN c_quiz_answer qa