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-rw-r--r--system/database/DB_forge.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index f9cf76a14..d2302b2f2 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -781,7 +781,7 @@ abstract class CI_DB_forge {
case 'SET':
$attributes['CONSTRAINT'] = $this->db->escape($attributes['CONSTRAINT']);
$field['length'] = is_array($attributes['CONSTRAINT'])
- ? "('".implode("','", $attributes['CONSTRAINT'])."')"
+ ? "(".implode(",", $attributes['CONSTRAINT']).")"
: '('.$attributes['CONSTRAINT'].')';
break;
default: