Change where() to skip dbprefix (until a better solution is available)
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index fd25303..21968a8 100644
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -614,9 +614,12 @@
 				? $this->_group_get_type('')
 				: $this->_group_get_type($type);
 
-			$k = (($op = $this->_get_operator($k)) !== FALSE)
-				? $this->protect_identifiers(substr($k, 0, strpos($k, $op)), FALSE, $escape).strstr($k, $op)
-				: $this->protect_identifiers($k, FALSE, $escape);
+			if ($escape === TRUE)
+			{
+				$k = (($op = $this->_get_operator($k)) !== FALSE)
+					? $this->escape_identifiers(substr($k, 0, strpos($k, $op))).strstr($k, $op)
+					: $this->escape_identifiers($k);
+			}
 
 			if (is_null($v) && ! $this->_has_operator($k))
 			{