LP:737442 - mysql_stmt_store_result() does not work after an unsuccessfull call to mysql_stmt_bind_result()

int test_store_result_1(MYSQL *mysql)

{

  MYSQL *stmt;

  int rc;

  char *query= "SELECT 'foo' FROM DUAL";

  stmt = mysql_stmt_init(mysql);

  FAIL_IF(!stmt, "stmt_init failed");

  rc= mysql_stmt_prepare(stmt, query, strlen(query));

  FAIL_IF(rc, mysql_stmt_error(stmt));

  rc= mysql_stmt_execute(stmt);

  FAIL_IF(rc, mysql_stmt_error(stmt));

  /* here we store the result set without binding, bind variables

     are required for fetch only */

  rc= mysql_stmt_store_result(stmt);   /* <------- this works ok */

  FAIL_IF(rc, mysql_stmt_error(stmt));

  mysql_stmt_close(stmt);

}

int test_store_result_2(MYSQL *mysql)

{

  MYSQL *stmt;

  MYSQL_BIND bind[1];

  int rc;

  char *query= "SELECT 'foo' FROM DUAL";

  stmt = mysql_stmt_init(mysql);

  FAIL_IF(!stmt, "stmt_init failed");

  rc= mysql_stmt_prepare(stmt, query, strlen(query));

  FAIL_IF(rc, mysql_stmt_error(stmt));

  rc= mysql_stmt_execute(stmt);

  FAIL_IF(rc, mysql_stmt_error(stmt));

  /* Geometry is not supported, mysql_bind_result should fail */

  memset(bind, 0, sizeof(bind));

  bind[0].buffer_type= MYSQL_TYPE_GEOMETRY;

  rc= mysql_stmt_bind_result(stmt, bind);

  FAIL_IF(!rc, "Expected error (unsupported buffer type)");

  /* We didn't bind as in test_store_result_1, but stmt_store_result

     fails, since it checks for stmt->lasterrno */

  rc= mysql_stmt_store_result(stmt);  /* <-----  this doesn't work */

  FAIL_IF(rc, mysql_stmt_error(stmt));

  mysql_stmt_close(stmt);

}