Merge polly.local:/tmp/20924/bug20294/my50-bug20294

into  polly.local:/tmp/20924/bug20294/my51-bug20294


mysql-test/r/case.result:
  Auto merged
mysql-test/r/func_if.result:
  Auto merged
mysql-test/r/func_test.result:
  Auto merged
mysql-test/t/case.test:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
mysql-test/r/user_var.result:
  Manual merge
mysql-test/t/user_var.test:
  Manual merge
sql/item_func.cc:
  Manual merge
sql/item_func.h:
  Manual merge

1 files changed, 14 insertions, 0 deletions

diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index 04462e05e9f..4bf52261cf7 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -1411,3 +1411,17 @@ inline Item *and_conds(Item *a, Item *b)
 }
 
 Item *and_expressions(Item *a, Item *b, Item **org_item);
+
+inline int compare_int_signed_unsigned(longlong sval, ulonglong uval)
+{
+  if (sval < 0 || (ulonglong)sval < uval)
+    return -1;
+  if ((ulonglong)sval == uval)
+    return 0;
+  return 1;
+}
+
+inline int compare_int_unsigned_signed(ulonglong uval, longlong sval)
+{
+  return -compare_int_signed_unsigned(sval, uval);
+}