diff --git a/client/internal/cmdline/test.go b/client/internal/cmdline/test.go
index 0aaa6b9..2c924db 100644
--- a/client/internal/cmdline/test.go
+++ b/client/internal/cmdline/test.go
@@ -17,8 +17,8 @@ import (
 
 func init() {
 	rootCmd.AddCommand(&cobra.Command{
-		Use:   "test",
-		Short: "test",
+		Use:   "test32",
+		Short: "test32",
 		Run: func(cmd *cobra.Command, args []string) {
 			coorCli, err := stgglb.CoordinatorMQPool.Acquire()
 			if err != nil {
@@ -34,8 +34,8 @@ func init() {
 			ft := ioswitch2.NewFromTo()
 			ft.SegmentParam = cdssdk.NewSegmentRedundancy(1293, 3)
 			ft.AddFrom(ioswitch2.NewFromShardstore("4E69A8B8CD9F42EDE371DA94458BADFB2308AFCA736AA393784A3D81F4746377", *stgs.Storages[0].MasterHub, stgs.Storages[0].Storage, ioswitch2.RawStream()))
-			ft.AddTo(ioswitch2.NewToShardStore(*stgs.Storages[1].MasterHub, stgs.Storages[1].Storage, ioswitch2.SegmentStream(0), "0"))
-			ft.AddTo(ioswitch2.NewToShardStore(*stgs.Storages[1].MasterHub, stgs.Storages[1].Storage, ioswitch2.SegmentStream(1), "1"))
+			// ft.AddTo(ioswitch2.NewToShardStore(*stgs.Storages[1].MasterHub, stgs.Storages[1].Storage, ioswitch2.SegmentStream(0), "0"))
+			ft.AddTo(ioswitch2.NewToShardStoreWithRange(*stgs.Storages[1].MasterHub, stgs.Storages[1].Storage, ioswitch2.SegmentStream(1), "1", exec.Range{Offset: 1}))
 			ft.AddTo(ioswitch2.NewToShardStore(*stgs.Storages[1].MasterHub, stgs.Storages[1].Storage, ioswitch2.SegmentStream(2), "2"))
 
 			plans := exec.NewPlanBuilder()
@@ -63,8 +63,8 @@ func init() {
 		},
 	})
 	rootCmd.AddCommand(&cobra.Command{
-		Use:   "test3",
-		Short: "test3",
+		Use:   "test",
+		Short: "test",
 		Run: func(cmd *cobra.Command, args []string) {
 			coorCli, err := stgglb.CoordinatorMQPool.Acquire()
 			if err != nil {
@@ -84,7 +84,7 @@ func init() {
 			ft.AddFrom(ioswitch2.NewFromShardstore("5EAC20EB3EBC7B5FA176C5BD1C01041FB2A6D14C35D6A232CA83D7F1E4B01ADE", *stgs.Storages[1].MasterHub, stgs.Storages[1].Storage, ioswitch2.SegmentStream(1)))
 			ft.AddFrom(ioswitch2.NewFromShardstore("A9BC1802F37100C80C72A1D6E8F53C0E0B73F85F99153D8C78FB01CEC9D8D903", *stgs.Storages[1].MasterHub, stgs.Storages[1].Storage, ioswitch2.SegmentStream(2)))
 
-			toDrv, drvStr := ioswitch2.NewToDriverWithRange(ioswitch2.RawStream(), exec.NewRange(500, 500))
+			toDrv, drvStr := ioswitch2.NewToDriverWithRange(ioswitch2.RawStream(), exec.NewRange(0, 1293))
 			ft.AddTo(toDrv)
 			ft.AddTo(ioswitch2.NewToShardStore(*stgs.Storages[0].MasterHub, stgs.Storages[0].Storage, ioswitch2.ECSrteam(0), "EC0"))
 			ft.AddTo(ioswitch2.NewToShardStore(*stgs.Storages[0].MasterHub, stgs.Storages[0].Storage, ioswitch2.ECSrteam(1), "EC1"))
diff --git a/common/pkgs/ioswitch2/ops2/clone.go b/common/pkgs/ioswitch2/ops2/clone.go
index 5cf4158..4bf1cdc 100644
--- a/common/pkgs/ioswitch2/ops2/clone.go
+++ b/common/pkgs/ioswitch2/ops2/clone.go
@@ -89,13 +89,13 @@ func (t *CloneStreamType) SetInput(raw *dag.StreamVar) {
 }
 
 func (t *CloneStreamType) NewOutput() *dag.StreamVar {
-	return t.OutputStreams().SetupNew(t).Var
+	return t.OutputStreams().AppendNew(t).Var
 }
 
 func (t *CloneStreamType) GenerateOp() (exec.Op, error) {
 	return &CloneStream{
 		Raw:     t.InputStreams().Get(0).VarID,
-		Cloneds: t.OutputValues().GetVarIDs(),
+		Cloneds: t.OutputStreams().GetVarIDs(),
 	}, nil
 }
 
diff --git a/common/pkgs/ioswitch2/ops2/ec.go b/common/pkgs/ioswitch2/ops2/ec.go
index 2502471..e87666d 100644
--- a/common/pkgs/ioswitch2/ops2/ec.go
+++ b/common/pkgs/ioswitch2/ops2/ec.go
@@ -142,7 +142,7 @@ func (t *ECMultiplyNode) RemoveAllInputs() {
 
 func (t *ECMultiplyNode) NewOutput(dataIndex int) *dag.StreamVar {
 	t.OutputIndexes = append(t.OutputIndexes, dataIndex)
-	return t.OutputStreams().SetupNew(t).Var
+	return t.OutputStreams().AppendNew(t).Var
 }
 
 func (t *ECMultiplyNode) GenerateOp() (exec.Op, error) {
diff --git a/common/pkgs/ioswitch2/ops2/segment.go b/common/pkgs/ioswitch2/ops2/segment.go
index 4cd2e65..c391a47 100644
--- a/common/pkgs/ioswitch2/ops2/segment.go
+++ b/common/pkgs/ioswitch2/ops2/segment.go
@@ -150,20 +150,10 @@ func (n *SegmentSplitNode) Segment(index int) *dag.StreamVar {
 }
 
 func (n *SegmentSplitNode) GenerateOp() (exec.Op, error) {
-	var realSegs []int64
-	var realSegVarIDs []exec.VarID
-
-	for i := 0; i < len(n.Segments); i++ {
-		if n.Segments[i] > 0 {
-			realSegs = append(realSegs, n.Segments[i])
-			realSegVarIDs = append(realSegVarIDs, n.Segment(i).VarID)
-		}
-	}
-
 	return &SegmentSplit{
 		Input:    n.InputStreams().Get(0).VarID,
-		Segments: realSegs,
-		Outputs:  realSegVarIDs,
+		Segments: n.Segments,
+		Outputs:  n.OutputStreams().GetVarIDs(),
 	}, nil
 }
 
diff --git a/common/pkgs/ioswitch2/parser/parser.go b/common/pkgs/ioswitch2/parser/parser.go
index 321211d..e618e7b 100644
--- a/common/pkgs/ioswitch2/parser/parser.go
+++ b/common/pkgs/ioswitch2/parser/parser.go
@@ -512,24 +512,19 @@ func fixSegmentSplit(ctx *ParseContext) error {
 		startSeg, endSeg := ctx.Ft.SegmentParam.CalcSegmentRange(ctx.StreamRange.Offset, strEnd)
 
 		// 关闭超出范围的分段
-		for i := 0; i < startSeg; i++ {
-			node.Segments[i] = 0
-			node.OutputStreams().Slots.Set(i, nil)
-		}
-
-		for i := endSeg; i < len(node.Segments); i++ {
-			node.Segments[i] = 0
-			node.OutputStreams().Slots.Set(i, nil)
-		}
+		node.OutputStreams().Slots.RemoveRange(endSeg, ctx.Ft.SegmentParam.SegmentCount()-endSeg)
+		node.Segments = lo2.RemoveRange(node.Segments, endSeg, ctx.Ft.SegmentParam.SegmentCount()-endSeg)
+		node.OutputStreams().Slots.RemoveRange(0, startSeg)
+		node.Segments = lo2.RemoveRange(node.Segments, 0, startSeg)
 
 		// StreamRange开始的位置可能在某个分段的中间，此时这个分段的大小等于流开始位置到分段结束位置的距离
 		startSegStart := ctx.Ft.SegmentParam.CalcSegmentStart(startSeg)
-		node.Segments[startSeg] -= ctx.StreamRange.Offset - startSegStart
+		node.Segments[0] -= ctx.StreamRange.Offset - startSegStart
 
 		// StreamRange结束的位置可能在某个分段的中间，此时这个分段的大小就等于流结束位置到分段起始位置的距离
 		if strEnd != nil {
 			endSegStart := ctx.Ft.SegmentParam.CalcSegmentStart(endSeg - 1)
-			node.Segments[endSeg-1] = *strEnd - endSegStart
+			node.Segments[len(node.Segments)-1] = *strEnd - endSegStart
 		}
 		return true
 	})
@@ -551,18 +546,13 @@ func fixSegmentJoin(ctx *ParseContext) error {
 		startSeg, endSeg := ctx.Ft.SegmentParam.CalcSegmentRange(start, end)
 
 		// 关闭超出范围的分段
-		for i := 0; i < startSeg; i++ {
-			node.InputStreams().ClearInputAt(node, i)
-		}
-
-		for i := endSeg; i < node.InputStreams().Len(); i++ {
-			node.InputStreams().ClearInputAt(node, i)
-		}
+		node.InputStreams().Slots.RemoveRange(endSeg, ctx.Ft.SegmentParam.SegmentCount()-endSeg)
+		node.InputStreams().Slots.RemoveRange(0, startSeg)
 
 		// 检查一下必须的分段是否都被加入到Join中
-		for i := startSeg; i < endSeg; i++ {
+		for i := 0; i < node.InputStreams().Len(); i++ {
 			if node.InputStreams().Get(i) == nil {
-				err = fmt.Errorf("segment %v missed to join an raw stream", i)
+				err = fmt.Errorf("segment %v missed to join an raw stream", i+startSeg)
 				return false
 			}
 		}
@@ -615,36 +605,36 @@ func omitSegmentSplitJoin(ctx *ParseContext) bool {
 	changed := false
 
 	dag.WalkOnlyType[*ops2.SegmentSplitNode](ctx.DAG.Graph, func(splitNode *ops2.SegmentSplitNode) bool {
-		// Split指令的每一个输出都有且只有一个目的地
-		var dstNode dag.Node
-		for _, out := range splitNode.OutputStreams().Slots.RawArray() {
-			if out.Dst.Len() != 1 {
-				return true
-			}
-
-			if dstNode == nil {
-				dstNode = out.Dst.Get(0)
-			} else if dstNode != out.Dst.Get(0) {
-				return true
-			}
-		}
-
-		if dstNode == nil {
+		// 随便找一个输出流的目的地
+		splitOut := splitNode.OutputStreams().Get(0)
+		if splitOut.Dst.Len() != 1 {
 			return true
 		}
+		dstNode := splitOut.Dst.Get(0)
 
-		// 且这个目的地要是一个Join指令
+		// 这个目的地要是一个Join指令
 		joinNode, ok := dstNode.(*ops2.SegmentJoinNode)
 		if !ok {
 			return true
 		}
 
-		// 同时这个Join指令的输入也必须全部来自Split指令的输出。
-		// 由于上面判断了Split指令的输出目的地都相同，所以这里只要判断Join指令的输入数量是否与Split指令的输出数量相同即可
-		if joinNode.InputStreams().Len() != splitNode.OutputStreams().Len() {
+		if splitNode.OutputStreams().Len() != joinNode.Joined().Dst.Len() {
 			return true
 		}
 
+		// Join指令的输入必须全部来自Split指令的输出，且位置要相同
+		for i := 0; i < splitNode.OutputStreams().Len(); i++ {
+			splitOut := splitNode.OutputStreams().Get(i)
+			joinIn := joinNode.InputStreams().Get(i)
+			if splitOut != joinIn {
+				return true
+			}
+
+			if splitOut != nil && splitOut.Dst.Len() != 1 {
+				return true
+			}
+		}
+
 		// 所有条件都满足，可以开始省略操作，将Join操作的目的地的输入流替换为Split操作的输入流：
 		// F->Split->Join->T 变换为：F->T
 		splitInput := splitNode.InputStreams().Get(0)
@@ -960,8 +950,8 @@ func generateClone(ctx *ParseContext) {
 
 			c := ctx.DAG.NewCloneStream()
 			*c.Env() = *node.Env()
-			for _, to := range outVar.Dst.RawArray() {
-				c.NewOutput().To(to, to.InputStreams().IndexOf(outVar))
+			for _, dst := range outVar.Dst.RawArray() {
+				c.NewOutput().To(dst, dst.InputStreams().IndexOf(outVar))
 			}
 			outVar.Dst.Resize(0)
 			c.SetInput(outVar)
@@ -974,8 +964,8 @@ func generateClone(ctx *ParseContext) {
 
 			t := ctx.DAG.NewCloneValue()
 			*t.Env() = *node.Env()
-			for _, to := range outVar.Dst.RawArray() {
-				t.NewOutput().To(to, to.InputValues().IndexOf(outVar))
+			for _, dst := range outVar.Dst.RawArray() {
+				t.NewOutput().To(dst, dst.InputValues().IndexOf(outVar))
 			}
 			outVar.Dst.Resize(0)
 			t.SetInput(outVar)
diff --git a/common/pkgs/ioswitchlrc/ops2/clone.go b/common/pkgs/ioswitchlrc/ops2/clone.go
index 5cf4158..5e730be 100644
--- a/common/pkgs/ioswitchlrc/ops2/clone.go
+++ b/common/pkgs/ioswitchlrc/ops2/clone.go
@@ -89,7 +89,7 @@ func (t *CloneStreamType) SetInput(raw *dag.StreamVar) {
 }
 
 func (t *CloneStreamType) NewOutput() *dag.StreamVar {
-	return t.OutputStreams().SetupNew(t).Var
+	return t.OutputStreams().AppendNew(t).Var
 }
 
 func (t *CloneStreamType) GenerateOp() (exec.Op, error) {
diff --git a/common/pkgs/ioswitchlrc/ops2/ec.go b/common/pkgs/ioswitchlrc/ops2/ec.go
index 2c6eb03..4e180f8 100644
--- a/common/pkgs/ioswitchlrc/ops2/ec.go
+++ b/common/pkgs/ioswitchlrc/ops2/ec.go
@@ -141,7 +141,7 @@ func (t *LRCConstructAnyNode) RemoveAllInputs() {
 
 func (t *LRCConstructAnyNode) NewOutput(dataIndex int) *dag.StreamVar {
 	t.OutputIndexes = append(t.OutputIndexes, dataIndex)
-	return t.OutputStreams().SetupNew(t).Var
+	return t.OutputStreams().AppendNew(t).Var
 }
 
 func (t *LRCConstructAnyNode) GenerateOp() (exec.Op, error) {
diff --git a/common/pkgs/storage/types/shard_store.go b/common/pkgs/storage/types/shard_store.go
index 61badd8..a7d9421 100644
--- a/common/pkgs/storage/types/shard_store.go
+++ b/common/pkgs/storage/types/shard_store.go
@@ -82,10 +82,10 @@ func (o *OpenOption) WithLength(len int64) OpenOption {
 	return *o
 }
 
-// [start, end]，即包含end
+// [start, end)，不包含end
 func (o *OpenOption) WithRange(start int64, end int64) OpenOption {
 	o.Offset = start
-	o.Length = end - start + 1
+	o.Length = end - start
 	return *o
 }
 
@@ -104,7 +104,7 @@ func (o *OpenOption) String() string {
 
 	rangeEnd := ""
 	if o.Length >= 0 {
-		rangeEnd = fmt.Sprintf("%d", o.Offset+o.Length-1)
+		rangeEnd = fmt.Sprintf("%d", o.Offset+o.Length)
 	}
 
 	if rangeStart == "" && rangeEnd == "" {