Oops, reverting. Eloy had already fixed it.

diff --git a/question/type/numerical/db/upgrade.php b/question/type/numerical/db/upgrade.php
index b32afbd92f790d5fd56767c0b620a2927bec8a89..d01a86e1a44bb5be25c85461d6e6b1c30c34229d 100644 (file)
--- a/question/type/numerical/db/upgrade.php
+++ b/question/type/numerical/db/upgrade.php
@@ -27,7 +27,7 @@ function xmldb_qtype_numerical_upgrade($oldversion=0) {
     // from the empty string to *, to be like short answer questions.
     if ($result && $oldversion < 2006121500) {
         $result = set_field_select('question_answers', 'answer', '*',
-            sql_compare_text('answer') . " LIKE '" . sql_empty() . "' AND question IN (SELECT id FROM {$CFG->prefix}question WHERE qtype = '" . NUMERICAL . "')");
+            sql_compare_text('answer') . " = '" . sql_empty() . "' AND question IN (SELECT id FROM {$CFG->prefix}question WHERE qtype = '" . NUMERICAL . "')");
     }
 
     return $result;