Implement _compile_order_by()
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index bfc82a6..edc6a84 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -453,13 +453,13 @@
// however an ORDER BY clause is required for it to work
if (version_compare($this->version(), '9', '>=') && $this->qb_offset && ! empty($this->qb_orderby))
{
- $orderby = trim($this->_compile_order_by());
+ $orderby = $this->_compile_order_by();
// We have to strip the ORDER BY clause
- $sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby)));
+ $sql = trim(substr($sql, 0, strrpos($sql, $orderby)));
return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
- .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
+ .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
."\n) ".$this->escape_identifiers('CI_subquery')
."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit;
}