select not return rowcount at mysql+cymysql

diff --git a/lib/sqlalchemy/dialects/mysql/base.py b/lib/sqlalchemy/dialects/mysql/base.py
index f83020d93793a8759a7bb7b17977499c8d3c10c0..6e78b52eadc9bd3c29f8524a8a45448c54e3e22b 100644 (file)
--- a/lib/sqlalchemy/dialects/mysql/base.py
+++ b/lib/sqlalchemy/dialects/mysql/base.py
@@ -2040,7 +2040,7 @@ class MySQLDialect(default.DefaultDialect):
         try:
             try:
                 rs = connection.execute(st)
-                have = rs.rowcount > 0
+                have = len(rs.fetchall()) > 0
                 rs.close()
                 return have
             except exc.DBAPIError, e: