* add statsquota variable Signed-off-by: yisaer <disxiaofei@163.com> * add test Signed-off-by: yisaer <disxiaofei@163.com> * address the comment Signed-off-by: yisaer <disxiaofei@163.com> * address the comment Signed-off-by: yisaer <disxiaofei@163.com> * address the comment Signed-off-by: yisaer <disxiaofei@163.com> * fix conflict Signed-off-by: yisaer <disxiaofei@163.com> * address the comment Signed-off-by: yisaer <disxiaofei@163.com> address the comment Signed-off-by: yisaer <disxiaofei@163.com> fix duplicated plan Signed-off-by: yisaer <disxiaofei@163.com> fix duplicated plan Signed-off-by: yisaer <disxiaofei@163.com> fix duplicated plan Signed-off-by: yisaer <disxiaofei@163.com> * fix duplicated plan Signed-off-by: yisaer <disxiaofei@163.com> * fix duplicated plan Signed-off-by: yisaer <disxiaofei@163.com> Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io>