diff --git a/pkg/frontend/authenticate.go b/pkg/frontend/authenticate.go
index 92dbbde21b1d..bcb2f9ae16ac 100644
--- a/pkg/frontend/authenticate.go
+++ b/pkg/frontend/authenticate.go
@@ -4298,7 +4298,7 @@ func postDropSuspendAccount(
 	}
 	var nodes []string
 	currTenant := ses.GetTenantInfo().GetTenant()
-	currUser := ses.GetTenantInfo().User
+	currUser := ses.GetTenantInfo().GetUser()
 	labels := clusterservice.NewSelector().SelectByLabel(
 		map[string]string{"account": accountName}, clusterservice.Contain)
 	sysTenant := isSysTenant(currTenant)
@@ -9124,7 +9124,7 @@ func doRevokePrivilegeImplicitly(ctx context.Context, ses *Session, stmt tree.St
 }
 
 func doSetGlobalSystemVariable(ctx context.Context, ses *Session, varName string, varValue interface{}) (err error) {
-	accountId := uint64(ses.GetTenantInfo().TenantID)
+	accountId := uint64(ses.GetTenantInfo().GetTenantID())
 	accountName := ses.GetTenantName()
 	varName = strings.ToLower(varName)
 	bh := ses.GetBackgroundExec(ctx)
diff --git a/pkg/frontend/authenticate_test.go b/pkg/frontend/authenticate_test.go
index 9a6a10386be8..694abc61bba2 100644
--- a/pkg/frontend/authenticate_test.go
+++ b/pkg/frontend/authenticate_test.go
@@ -6104,7 +6104,7 @@ func TestDoSetSecondaryRoleAll(t *testing.T) {
 		bh.sql2result["commit;"] = nil
 		bh.sql2result["rollback;"] = nil
 
-		sql := getSqlForgetUserRolesExpectPublicRole(publicRoleID, ses.GetTenantInfo().UserID)
+		sql := getSqlForgetUserRolesExpectPublicRole(publicRoleID, ses.GetTenantInfo().GetUserID())
 		mrs := newMrsForPasswordOfUser([][]interface{}{
 			{"6", "role5"},
 		})
@@ -6145,7 +6145,7 @@ func TestDoSetSecondaryRoleAll(t *testing.T) {
 		bh.sql2result["commit;"] = nil
 		bh.sql2result["rollback;"] = nil
 
-		sql := getSqlForgetUserRolesExpectPublicRole(publicRoleID, ses.GetTenantInfo().UserID)
+		sql := getSqlForgetUserRolesExpectPublicRole(publicRoleID, ses.GetTenantInfo().GetUserID())
 		mrs := newMrsForPasswordOfUser([][]interface{}{})
 		bh.sql2result[sql] = mrs
 
diff --git a/pkg/frontend/back_exec.go b/pkg/frontend/back_exec.go
index 4dca397ddca5..154b50184375 100644
--- a/pkg/frontend/back_exec.go
+++ b/pkg/frontend/back_exec.go
@@ -31,8 +31,10 @@ import (
 	"github.com/matrixorigin/matrixone/pkg/defines"
 	"github.com/matrixorigin/matrixone/pkg/logutil"
 	"github.com/matrixorigin/matrixone/pkg/pb/plan"
+
 	"github.com/matrixorigin/matrixone/pkg/pb/timestamp"
 	"github.com/matrixorigin/matrixone/pkg/sql/compile"
+
 	"github.com/matrixorigin/matrixone/pkg/sql/parsers"
 	"github.com/matrixorigin/matrixone/pkg/sql/parsers/dialect/mysql"
 	"github.com/matrixorigin/matrixone/pkg/sql/parsers/tree"
@@ -212,7 +214,7 @@ func doComQueryInBack(backSes *backSession, execCtx *ExecCtx,
 		getGlobalPu().QueryClient,
 		getGlobalPu().HAKeeperClient,
 		getGlobalPu().UdfService,
-		getGlobalAic())
+		getGlobalAicm())
 	proc.Id = backSes.getNextProcessId()
 	proc.Lim.Size = getGlobalPu().SV.ProcessLimitationSize
 	proc.Lim.BatchRows = getGlobalPu().SV.ProcessLimitationBatchRows
@@ -704,10 +706,6 @@ func (backSes *backSession) getNextProcessId() string {
 func (backSes *backSession) cleanCache() {
 }
 
-func (backSes *backSession) GetUpstream() FeSession {
-	return backSes.upstream
-}
-
 func (backSes *backSession) getCNLabels() map[string]string {
 	return backSes.label
 }
diff --git a/pkg/frontend/server.go b/pkg/frontend/server.go
index 30bfe1355d0b..5a642812ee48 100644
--- a/pkg/frontend/server.go
+++ b/pkg/frontend/server.go
@@ -117,7 +117,7 @@ func setGlobalAicm(aicm *defines.AutoIncrCacheManager) {
 	globalAicm.Store(aicm)
 }
 
-func getGlobalAic() *defines.AutoIncrCacheManager {
+func getGlobalAicm() *defines.AutoIncrCacheManager {
 	if globalAicm.Load() != nil {
 		return globalAicm.Load().(*defines.AutoIncrCacheManager)
 	}
diff --git a/pkg/frontend/session.go b/pkg/frontend/session.go
index 4f5af1969d7e..24e5a57c9610 100644
--- a/pkg/frontend/session.go
+++ b/pkg/frontend/session.go
@@ -24,6 +24,8 @@ import (
 	"sync/atomic"
 	"time"
 
+	"github.com/matrixorigin/matrixone/pkg/logutil"
+
 	"github.com/google/uuid"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
@@ -35,7 +37,6 @@ import (
 	"github.com/matrixorigin/matrixone/pkg/common/mpool"
 	"github.com/matrixorigin/matrixone/pkg/container/batch"
 	"github.com/matrixorigin/matrixone/pkg/defines"
-	"github.com/matrixorigin/matrixone/pkg/logutil"
 	"github.com/matrixorigin/matrixone/pkg/pb/plan"
 	"github.com/matrixorigin/matrixone/pkg/pb/query"
 	"github.com/matrixorigin/matrixone/pkg/pb/status"
@@ -237,7 +238,7 @@ type Session struct {
 }
 
 func (ses *Session) InitSystemVariables(ctx context.Context) (err error) {
-	if ses.gSysVars, err = GSysVarsMgr.Get(ses.GetTenantInfo().TenantID, ses, ctx); err != nil {
+	if ses.gSysVars, err = GSysVarsMgr.Get(ses.GetTenantInfo().GetTenantID(), ses, ctx); err != nil {
 		return
 	}
 	ses.sesSysVars = ses.gSysVars.Clone()
@@ -532,7 +533,7 @@ func NewSession(connCtx context.Context, proto MysqlRrWr, mp *mpool.MPool) *Sess
 		getGlobalPu().QueryClient,
 		getGlobalPu().HAKeeperClient,
 		getGlobalPu().UdfService,
-		getGlobalAic())
+		getGlobalAicm())
 
 	ses.proc.Lim.Size = getGlobalPu().SV.ProcessLimitationSize
 	ses.proc.Lim.BatchRows = getGlobalPu().SV.ProcessLimitationBatchRows
@@ -983,15 +984,6 @@ func (ses *Session) GetTxnInfo() string {
 	return meta.DebugString()
 }
 
-func (ses *Session) GetDatabaseName() string {
-	return ses.GetResponser().GetStr(DBNAME)
-}
-
-func (ses *Session) SetDatabaseName(db string) {
-	ses.GetResponser().SetStr(DBNAME, db)
-	ses.GetTxnCompileCtx().SetDatabase(db)
-}
-
 func (ses *Session) DatabaseNameIsEmpty() bool {
 	return len(ses.GetDatabaseName()) == 0
 }
diff --git a/pkg/frontend/show_account_test.go b/pkg/frontend/show_account_test.go
index 5cf495e465a7..bc553666d77f 100644
--- a/pkg/frontend/show_account_test.go
+++ b/pkg/frontend/show_account_test.go
@@ -21,14 +21,15 @@ import (
 	"time"
 
 	"github.com/golang/mock/gomock"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
 	"github.com/matrixorigin/matrixone/pkg/container/batch"
 	"github.com/matrixorigin/matrixone/pkg/container/types"
 	"github.com/matrixorigin/matrixone/pkg/container/vector"
 	"github.com/matrixorigin/matrixone/pkg/sql/parsers"
 	"github.com/matrixorigin/matrixone/pkg/sql/parsers/dialect"
 	"github.com/matrixorigin/matrixone/pkg/sql/parsers/tree"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 )
 
 func Test_getSqlForAccountInfo(t *testing.T) {
diff --git a/pkg/frontend/txn.go b/pkg/frontend/txn.go
index 543cc0b10e9b..3bd5b8fcd171 100644
--- a/pkg/frontend/txn.go
+++ b/pkg/frontend/txn.go
@@ -363,8 +363,8 @@ func (th *TxnHandler) createTxnOpUnsafe(execCtx *ExecCtx) error {
 		connectionID = execCtx.resper.GetU32(CONNID)
 	}
 	if execCtx.ses.GetTenantInfo() != nil {
-		accountID = execCtx.ses.GetTenantInfo().TenantID
-		userName = execCtx.ses.GetTenantInfo().User
+		accountID = execCtx.ses.GetTenantInfo().GetTenantID()
+		userName = execCtx.ses.GetTenantInfo().GetUser()
 	}
 	sessionInfo := execCtx.ses.GetDebugString()
 	opts = append(opts,