Index: includes/database/query.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/database/query.inc,v
retrieving revision 1.39
diff -u -p -r1.39 query.inc
--- includes/database/query.inc	29 Jan 2010 01:59:32 -0000	1.39
+++ includes/database/query.inc	31 Jan 2010 17:06:56 -0000
@@ -1386,8 +1386,10 @@ function db_xor() {
 /**
  * Returns a new DatabaseCondition, set to the specified conjunction.
  *
- * @param
- *   The conjunction (AND, OR, XOR, etc.) to use on conditions.
+ * @param $conjunction
+ *   The conjunction to use for query conditions. The following conjunctions are
+ *   supported: AND, OR, XOR, IN, NOT IN, BETWEEN, IS NULL, IS NOT NULL,
+ *   LIKE.
  * @return DatabaseCondition
  */
 function db_condition($conjunction) {