Merge mysql.com:/home/hf/work/8663/my50-8663

into  mysql.com:/home/hf/work/8663/my51-8663


strings/decimal.c:
  Auto merged
mysql-test/r/bigint.result:
  SCCS merged
mysql-test/t/bigint.test:
  merging

1 files changed, 5 insertions, 1 deletions

diff --git a/strings/decimal.c b/strings/decimal.c
index b29017aa6cb..0768c8cd4ca 100644
--- a/strings/decimal.c
+++ b/strings/decimal.c
@@ -1089,7 +1089,11 @@ int decimal2longlong(decimal_t *from, longlong *to)
     x=x*DIG_BASE - *buf++;
     if (unlikely(y < (LONGLONG_MIN/DIG_BASE) || x > y))
     {
-      *to= from->sign ? y : -y;
+      /*
+        the decimal is bigger than any possible integer
+        return border integer depending on the sign
+      */
+      *to= from->sign ? LONGLONG_MIN : LONGLONG_MAX;
       return E_DEC_OVERFLOW;
     }
   }