Merge branch '2.3' into 2.4

system-test/mxs1958_insert_priv.cpp

@@ -0,0 +1,28 @@
+#include <maxtest/testconnections.hh>
+
+int main(int argc, char** argv)
+{
+    TestConnections test(argc, argv);
+
+    test.repl->connect();
+    execute_query(test.repl->nodes[0], "CREATE USER 'insert_only'@'%%' IDENTIFIED BY 'insert_only'");
+    execute_query(test.repl->nodes[0], "CREATE DATABASE insert_db");
+    execute_query(test.repl->nodes[0], "CREATE TABLE insert_db.t1(id INT)");
+    execute_query(test.repl->nodes[0], "GRANT INSERT ON insert_db.t1 TO 'insert_only'@'%%'");
+    test.repl->sync_slaves();
+
+    MYSQL* conn = open_conn(test.maxscales->rwsplit_port[0],
+                            test.maxscales->IP[0],
+                            "insert_only",
+                            "insert_only",
+                            false);
+    test.expect(mysql_errno(conn) == 0, "User without SELECT privileges should be allowed to connect");
+    mysql_close(conn);
+
+    execute_query(test.repl->nodes[0], "DROP USER 'insert_only'@'%%'");
+    execute_query(test.repl->nodes[0], "DROP DATABASE insert_db");
+    test.repl->sync_slaves();
+    test.repl->disconnect();
+
+    return test.global_result;
+}