diff --git a/source/libs/index/inc/index_fst_automation.h b/source/libs/index/inc/index_fst_automation.h
index c2ab61bf5f490601c503dde46a49c7c2323dad39..7eb2ba97aefbe8203d8727861f6587bc8548780d 100644
--- a/source/libs/index/inc/index_fst_automation.h
+++ b/source/libs/index/inc/index_fst_automation.h
@@ -20,6 +20,8 @@ extern "C" {
 #endif
 
 #include "index_fst_util.h"
+
+
 typedef struct AutomationCtx AutomationCtx;
 
 typedef enum AutomationType {
@@ -42,14 +44,23 @@ typedef struct AutomationCtx {
 } AutomationCtx;
 
 
-
+typedef enum ValueType { FST_INT, FST_CHAR, FST_ARRAY} ValueType;
 typedef enum StartWithStateKind { Done, Running } StartWithStateKind; 
 
 typedef struct StartWithStateValue {
   StartWithStateKind kind;
-  void *value;
+  ValueType type;
+  union {
+    int    val; 
+    char   *ptr;
+    SArray *arr;
+    // add more type
+  } ;
 } StartWithStateValue;
 
+StartWithStateValue *startWithStateValueDump(StartWithStateValue *sv); 
+
+
 typedef struct AutomationFunc {
   void* (*start)(AutomationCtx *ctx) ; 
   bool (*isMatch)(AutomationCtx *ctx, void *);
diff --git a/source/libs/index/src/index_fst.c b/source/libs/index/src/index_fst.c
index 07f1e343bd8014607939db357aab756c4c7b22ef..e2708c59192902511fba03405b86ea8931149cd2 100644
--- a/source/libs/index/src/index_fst.c
+++ b/source/libs/index/src/index_fst.c
@@ -1322,6 +1322,7 @@ StreamWithStateResult *streamWithStateNextWith(StreamWithState *sws, StreamCallb
       return swsResultCreate(&s, output, callback(start));
     }
   }
+  SArray *nodes = taosArrayInit(8, sizeof(FstNode *));  
   while (taosArrayGetSize(sws->stack) > 0) {
     StreamState *p = (StreamState *)taosArrayPop(sws->stack);     
     if (p->trans >= FST_NODE_LEN(p->node) || automFuncs[aut->type].canMatch(aut, p->autState)) {
@@ -1337,8 +1338,8 @@ StreamWithStateResult *streamWithStateNextWith(StreamWithState *sws, StreamCallb
     void* nextState = automFuncs[aut->type].accept(aut, p->autState, trn.inp);
     void* tState = callback(nextState);
     bool isMatch = automFuncs[aut->type].isMatch(aut, nextState);
-    //bool isMatch = sws->aut->isMatch(nextState);
     FstNode *nextNode = fstGetNode(sws->fst, trn.addr); 
+    taosArrayPush(nodes, &nextNode); 
     taosArrayPush(sws->inp, &(trn.inp)); 
 
     if (FST_NODE_IS_FINAL(nextNode)) {
@@ -1354,26 +1355,35 @@ StreamWithStateResult *streamWithStateNextWith(StreamWithState *sws, StreamCallb
     StreamState s2 = {.node = nextNode, .trans = 0, .out = {.null = false, .out = out}, .autState = nextState};
     taosArrayPush(sws->stack, &s2);
     
-    uint8_t *buf = (uint8_t *)malloc(taosArrayGetSize(sws->inp) * sizeof(uint8_t)); 
-    for (uint32_t i = 0; i < taosArrayGetSize(sws->inp); i++) {
-      uint8_t *t = (uint8_t *)taosArrayGet(sws->inp, i);
-      buf[i] = *t; 
+
+    size_t isz = taosArrayGetSize(sws->inp);
+    uint8_t *buf = (uint8_t *)malloc(isz * sizeof(uint8_t)); 
+    for (uint32_t i = 0; i < isz; i++) {
+      buf[i] = *(uint8_t *)taosArrayGet(sws->inp, i);
     }
     FstSlice slice = fstSliceCreate(buf, taosArrayGetSize(sws->inp));
     if (fstBoundWithDataExceededBy(sws->endAt, &slice)) {
       taosArrayDestroyEx(sws->stack, streamStateDestroy);
       sws->stack = (SArray *)taosArrayInit(256, sizeof(StreamState)); 
+      free(buf);
       fstSliceDestroy(&slice);
       return NULL;
     }
     if (FST_NODE_IS_FINAL(nextNode) && isMatch) {
       FstOutput fOutput = {.null = false, .out = out + FST_NODE_FINAL_OUTPUT(nextNode)};
-      StreamWithStateResult *result =  swsResultCreate(&slice, fOutput , tState);     
+      StreamWithStateResult *result =  swsResultCreate(&slice, fOutput, tState);     
+      free(buf);
       fstSliceDestroy(&slice);
       return result; 
     }
+    free(buf);
     fstSliceDestroy(&slice);
   }
+  for (size_t i = 0; i < taosArrayGetSize(nodes); i++) {
+    FstNode** node = (FstNode **)taosArrayGet(nodes, i);
+    fstNodeDestroy(*node);
+  }
+  taosArrayDestroy(nodes);
   return NULL; 
   
 }
diff --git a/source/libs/index/src/index_fst_automation.c b/source/libs/index/src/index_fst_automation.c
index 6a08b41b12ec08f534cd087b7546bc68d86d21c9..bb0f0da76d1aef65702f72a2ab7282c836ff74db 100644
--- a/source/libs/index/src/index_fst_automation.c
+++ b/source/libs/index/src/index_fst_automation.c
@@ -16,9 +16,59 @@
 #include "index_fst_automation.h"
 
 
+StartWithStateValue *startWithStateValueCreate(StartWithStateKind kind, ValueType ty, void *val) {
+  StartWithStateValue *nsv = calloc(1, sizeof(StartWithStateValue));
+  if (nsv == NULL) { return NULL; }
+
+  nsv->kind = kind;
+  nsv->type = ty;
+  if (ty == FST_INT) {
+    nsv->val = *(int *)val;
+  } else if (ty == FST_CHAR) {
+    size_t len = strlen((char *)val);  
+    nsv->ptr = (char *)calloc(1, len + 1);  
+    memcpy(nsv->ptr, val, len);
+  } else if (ty == FST_ARRAY) {
+    //TODO, 
+    //nsv->arr = taosArrayFromList() 
+  }
+  return nsv;
+}
+void startWithStateValueDestroy(StartWithStateValue *sv) {
+  if (sv == NULL) { return; }
+
+  if (sv->type == FST_INT) {
+    //  
+  } else if (sv->type == FST_CHAR) {
+    free(sv->ptr);
+  } else if (sv->type == FST_ARRAY) {
+    taosArrayDestroy(sv->arr);
+  }
+  free(sv); 
+}
+StartWithStateValue *startWithStateValueDump(StartWithStateValue *sv) {
+  StartWithStateValue *nsv = calloc(1, sizeof(StartWithStateValue));
+  if (nsv == NULL) { return NULL; }
+
+  nsv->kind = sv->kind;
+  nsv->type= sv->type;
+  if (nsv->type == FST_INT) {
+    nsv->val = sv->val;
+  } else if (nsv->type == FST_CHAR) {
+    size_t len = strlen(sv->ptr);
+    nsv->ptr = (char *)calloc(1, len + 1);
+    memcpy(nsv->ptr, sv->ptr, len);
+  } else if (nsv->type == FST_ARRAY) {
+  }
+  return nsv;
+}
+
+
 // prefix query, impl later
+
 static void* prefixStart(AutomationCtx *ctx) {  
   StartWithStateValue *data = (StartWithStateValue *)(ctx->data);
+  
   return data;
 };
 static bool prefixIsMatch(AutomationCtx *ctx, void *data) {
@@ -86,7 +136,7 @@ AutomationCtx* automCtxCreate(void *data, AutomationType type) {
   if (type == AUTOMATION_PREFIX) {
     StartWithStateValue *swsv = (StartWithStateValue *)calloc(1, sizeof(StartWithStateValue));   
     swsv->kind  = Done; 
-    swsv->value = NULL; 
+    //swsv->value = NULL; 
     ctx->data = (void *)swsv;
   } else if (type == AUTMMATION_MATCH) {