* parser: use identifier as user's resource group name and also fix a drop resource group bug Signed-off-by: BornChanger <dawn_catcher@126.com> * executor: fix case Signed-off-by: BornChanger <dawn_catcher@126.com> * *: format parser.y Signed-off-by: BornChanger <dawn_catcher@126.com> * *: fix store function of resource group Signed-off-by: BornChanger <dawn_catcher@126.com> Signed-off-by: BornChanger <dawn_catcher@126.com> Co-authored-by: Ti Chi Robot <ti-community-prow-bot@tidb.io>