Debug info: Unknown column 'a.question' in 'on clause'
SELECT qa.*, q.qtype
FROM mdl_question_answers qa
JOIN mdl_question q ON a.question = q.id
[array (
)]
SELECT qa.*, q.qtype
FROM mdl_question_answers qa
JOIN mdl_question q ON a.question = q.id
[array (
)]
Stack trace:
- line 391 of /lib/dml/moodle_database.php: dml_read_exception thrown
- line 691 of /lib/dml/mysqli_native_moodle_database.php: call to moodle_database->query_end()
- line 5068 of /lib/db/upgrade.php: call to mysqli_native_moodle_database->get_recordset_sql()
- line 1309 of /lib/upgradelib.php: call to xmldb_main_upgrade()
- line 264 of /admin/index.php: call to upgrade_core()
PHP5.2.14 Mysql 5.5.3
