1 files changed, 8 insertions, 7 deletions

diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index 0bdfc41d5..c5c582d0b 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -422,27 +422,28 @@ class CI_DB_odbc_driver extends CI_DB {
 

 		// This function may get "item1 item2" as a string, and so

 		// we may need "`item1` `item2`" and not "`item1 item2`"

-		if (strpos($item, ' ') !== FALSE)

+		if (ctype_alnum($item) === FALSE)

 		{

 			// This function may get "field >= 1", and need it to return "`field` >= 1"

-			if ($first_word_only === TRUE)

-			{

-				return '`'.preg_replace('/ /', '` ', $item, 1);

-			}

+			$lbound = ($first_word_only === TRUE) ? '' : '|\s|\(';

 

-			$item = preg_replace('/(^|\s|\()([\w\d\-\_]+?)(\s|\)|$)/iS', '$1`$2`$3', $item);

+			$item = preg_replace('/(^'.$lbound.')([\w\d\-\_]+?)(\s|\)|$)/iS', '$1`$2`$3', $item);

+		}

+		else

+		{

+			return "`{$item}`";

 		}

 

 		$exceptions = array('AS', '/', '-', '%', '+', '*');

 		

 		foreach ($exceptions as $exception)

 		{

+		

 			if (stristr($item, " `{$exception}` ") !== FALSE)

 			{

 				$item = preg_replace('/ `('.preg_quote($exception).')` /i', ' $1 ', $item);

 			}

 		}

-		

 		return $item;

 	}