diff --git a/docs/en/12-taos-sql/10-function.md b/docs/en/12-taos-sql/10-function.md
index 18c7ffc345..2ea144c56a 100644
--- a/docs/en/12-taos-sql/10-function.md
+++ b/docs/en/12-taos-sql/10-function.md
@@ -539,7 +539,8 @@ TO_CHAR(ts, format_str_literal)
 - When `ms`,`us`,`ns` are used in `to_char`, like `to_char(ts, 'yyyy-mm-dd hh:mi:ss.ms.us.ns')`, The time of `ms`,`us`,`ns` corresponds to the same fraction seconds. When ts is `1697182085123`, the output of `ms` is `123`, `us` is `123000`, `ns` is `123000000`.
 - If we want to output some characters of format without converting, surround it with double quotes. `to_char(ts, 'yyyy-mm-dd "is formated by yyyy-mm-dd"')`. If want to output double quotes, add a back slash before double quote, like `to_char(ts, '\"yyyy-mm-dd\"')` will output `"2023-10-10"`.
 - For formats that output digits, the uppercase and lowercase formats are the same.
-- It's recommended to put time zone in the format, if not, the default time zone zone will be that in server or client.
+- It's recommended to put time zone in the format, if not, the default time zone will be that in server or client.
+- The precision of the input timestamp will be recognized automatically according to the precision of the table used, milliseconds will be used if no table is specified.
 
 #### TO_TIMESTAMP
 
@@ -564,9 +565,10 @@ TO_TIMESTAMP(ts_str_literal, format_str_literal)
 - The uppercase or lowercase of `MONTH`, `MON`, `DAY`, `DY` and formtas that output digits have same effect when used in `to_timestamp`, like `to_timestamp('2023-JANUARY-01', 'YYYY-month-dd')`, `month` can be replaced by `MONTH`, or `month`. The cases are ignored.
 - If multi times are specified for one component, the previous will be overwritten. Like `to_timestamp('2023-22-10-10', 'yyyy-yy-MM-dd')`, the output year will be `2022`.
 - To avoid unexpected time zone used during the convertion, it's recommended to put time zone in the ts string, e.g. '2023-10-10 10:10:10+08'. If time zone not specified, default will be that in server or client.
-- The default timestamp if some components are not specified will be: `1970-01-01 00:00:00` with specified or default local timezone.
+- The default timestamp if some components are not specified will be: `1970-01-01 00:00:00` with the timezone specified or default to local timezone.
 - If `AM` or `PM` is specified in formats, the Hour must between `1-12`.
 - In some cases, `to_timestamp` can convert correctly even the format and the timestamp string are not totally matched. Like `to_timetamp('200101/2', 'yyyyMM1/dd')`, the digit `1` in format string are ignored, and the output timestsamp is `2001-01-02 00:00:00`. Spaces and tabs in formats and tiemstamp string are also ignored automatically.
+- The precision of the output timestamp will be the same as the table in SELECT stmt, millisecond will be used if no table is specified. The output of `select to_timestamp('2023-08-1 10:10:10.123456789', 'yyyy-mm-dd hh:mi:ss.ns')` will be truncated to millisecond precision. If a nano precision table is specified, no truncation will be applied. Like `select to_timestamp('2023-08-1 10:10:10.123456789', 'yyyy-mm-dd hh:mi:ss.ns') from db_ns.table_ns limit 1`.
 
 
 ### Time and Date Functions
diff --git a/docs/zh/12-taos-sql/10-function.md b/docs/zh/12-taos-sql/10-function.md
index 4371124623..c1dc6a6363 100644
--- a/docs/zh/12-taos-sql/10-function.md
+++ b/docs/zh/12-taos-sql/10-function.md
@@ -540,6 +540,7 @@ TO_CHAR(ts, format_str_literal)
 - 时间格式中无法匹配规则的内容会直接输出. 如果想要在格式串中指定某些能够匹配规则的部分不做转换, 可以使用双引号, 如`to_char(ts, 'yyyy-mm-dd "is formated by yyyy-mm-dd"')`. 如果想要输出双引号, 那么在双引号之前加一个反斜杠, 如 `to_char(ts, '\"yyyy-mm-dd\"')` 将会输出 `"2023-10-10"`.
 - 那些输出是数字的格式, 如`YYYY`, `DD`, 大写与小写意义相同, 即`yyyy` 和 `YYYY` 可以互换.
 - 推荐在时间格式中带时区信息，如果不带则默认输出的时区为服务端或客户端所配置的时区.
+- 输入时间戳的精度由所查询表的精度确定, 若未指定表, 则精度为毫秒.
 
 #### TO_TIMESTAMP
 
@@ -560,13 +561,14 @@ TO_TIMESTAMP(ts_str_literal, format_str_literal)
 **支持的格式**: 与`to_char`相同
 
 **使用说明**:
-- 若`ms`, `us`, `ns`同时指定, 那么结果时间戳包含上述三个字段的和. 如 `to_timestamp('2023-10-10 10:10:10.123.000456.000000789', 'yyyy-mm-dd hh:mi:ss.ms.us.ns')` 输出是 `2023-10-10 10:10:10.123456789`.
+- 若`ms`, `us`, `ns`同时指定, 那么结果时间戳包含上述三个字段的和. 如 `to_timestamp('2023-10-10 10:10:10.123.000456.000000789', 'yyyy-mm-dd hh:mi:ss.ms.us.ns')` 输出为 `2023-10-10 10:10:10.123456789`对应的时间戳.
 - `MONTH`, `MON`, `DAY`, `DY` 以及其他输出为数字的格式的大小写意义相同, 如 `to_timestamp('2023-JANUARY-01', 'YYYY-month-dd')`, `month`可以被替换为`MONTH` 或者`Month`.
 - 如果同一字段被指定了多次, 那么前面的指定将会被覆盖.  如 `to_timestamp('2023-22-10-10', 'yyyy-yy-MM-dd')`, 输出年份是`2022`.
 - 为避免转换时使用了非预期的时区，推荐在时间中携带时区信息，例如'2023-10-10 10:10:10+08'，如果未指定时区则默认时区为服务端或客户端指定的时区。
 - 如果没有指定完整的时间，那么默认时间值为指定或默认时区的 `1970-01-01 00:00:00`, 未指定部分使用该默认值中的对应部分.
 - 如果格式串中有`AM`, `PM`等, 那么小时必须是12小时制, 范围必须是01-12.
 - `to_timestamp`转换具有一定的容错机制, 在格式串和时间戳串不完全对应时, 有时也可转换, 如: `to_timestamp('200101/2', 'yyyyMM1/dd')`, 格式串中多出来的1会被丢弃. 格式串与时间戳串中多余的空格字符(空格, tab等)也会被 自动忽略. 如`to_timestamp('  23 年 - 1 月 - 01 日  ', 'yy 年-MM月-dd日')` 可以被成功转换. 虽然`MM`等字段需要两个数字对应(只有一位时前面补0), 在`to_timestamp`时, 一个数字也可以成功转换.
+- 输出时间戳的精度与查询表的精度相同, 若查询未指定表, 则输出精度为毫秒. 如`select to_timestamp('2023-08-1 10:10:10.123456789', 'yyyy-mm-dd hh:mi:ss.ns')`的输出将会把微妙和纳秒进行截断. 如果指定一张纳秒表, 那么就不会发生截断, 如`select to_timestamp('2023-08-1 10:10:10.123456789', 'yyyy-mm-dd hh:mi:ss.ns') from db_ns.table_ns limit 1`.
 
 
 ### 时间和日期函数
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index db809f1af2..980d5b9177 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -752,7 +752,8 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_FUNC_FUNTION_PARA_VALUE       TAOS_DEF_ERROR_CODE(0, 0x2803)
 #define TSDB_CODE_FUNC_NOT_BUILTIN_FUNTION      TAOS_DEF_ERROR_CODE(0, 0x2804)
 #define TSDB_CODE_FUNC_DUP_TIMESTAMP            TAOS_DEF_ERROR_CODE(0, 0x2805)
-#define TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED      TAOS_DEF_ERROR_CODE(0, 0x2806)
+#define TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED_FORMAT_ERR TAOS_DEF_ERROR_CODE(0, 0x2806)
+#define TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED_TS_ERR TAOS_DEF_ERROR_CODE(0, 0x2807)
 
 //udf
 #define TSDB_CODE_UDF_STOPPING                  TAOS_DEF_ERROR_CODE(0, 0x2901)
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index d74a704894..8e824b4d67 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -105,9 +105,9 @@ bool     tsEnableAuditCreateTable = true;
 
 // telem
 #ifdef TD_ENTERPRISE
-bool     tsEnableTelem = false;
+bool tsEnableTelem = false;
 #else
-bool     tsEnableTelem = true;
+bool    tsEnableTelem = true;
 #endif
 int32_t  tsTelemInterval = 43200;
 char     tsTelemServer[TSDB_FQDN_LEN] = "telemetry.tdengine.com";
@@ -115,9 +115,9 @@ uint16_t tsTelemPort = 80;
 char    *tsTelemUri = "/report";
 
 #ifdef TD_ENTERPRISE
-bool  tsEnableCrashReport = false;
+bool tsEnableCrashReport = false;
 #else
-bool  tsEnableCrashReport = true;
+bool    tsEnableCrashReport = true;
 #endif
 char *tsClientCrashReportUri = "/ccrashreport";
 char *tsSvrCrashReportUri = "/dcrashreport";
@@ -128,7 +128,7 @@ char tsSmlTsDefaultName[TSDB_COL_NAME_LEN] = "_ts";
 char tsSmlTagName[TSDB_COL_NAME_LEN] = "_tag_null";
 char tsSmlChildTableName[TSDB_TABLE_NAME_LEN] = "";  // user defined child table name can be specified in tag value.
 char tsSmlAutoChildTableNameDelimiter[TSDB_TABLE_NAME_LEN] = "";
-                                                                   // If set to empty system will generate table name using MD5 hash.
+// If set to empty system will generate table name using MD5 hash.
 // true means that the name and order of cols in each line are the same(only for influx protocol)
 // bool    tsSmlDataFormat = false;
 // int32_t tsSmlBatchSize = 10000;
@@ -280,8 +280,10 @@ int8_t tsS3Enabled = false;
 int8_t tsS3Https = true;
 char   tsS3Hostname[TSDB_FQDN_LEN] = "<hostname>";
 
-int32_t tsS3BlockSize = 4096;     // number of tsdb pages
-int32_t tsS3BlockCacheSize = 16;  // number of blocks
+int32_t tsS3BlockSize = -1;        // number of tsdb pages (4096)
+int32_t tsS3BlockCacheSize = 16;   // number of blocks
+int32_t tsS3PageCacheSize = 4096;  // number of pages
+int32_t tsS3UploadDelaySec = 60 * 60;
 
 #ifndef _STORAGE
 int32_t taosSetTfsCfg(SConfig *pCfg) {
@@ -460,7 +462,8 @@ static int32_t taosAddClientCfg(SConfig *pCfg) {
   if (cfgAddBool(pCfg, "queryUseNodeAllocator", tsQueryUseNodeAllocator, CFG_SCOPE_CLIENT) != 0) return -1;
   if (cfgAddBool(pCfg, "keepColumnName", tsKeepColumnName, CFG_SCOPE_CLIENT) != 0) return -1;
   if (cfgAddString(pCfg, "smlChildTableName", tsSmlChildTableName, CFG_SCOPE_CLIENT) != 0) return -1;
-  if (cfgAddString(pCfg, "smlAutoChildTableNameDelimiter", tsSmlAutoChildTableNameDelimiter, CFG_SCOPE_CLIENT) != 0) return -1;
+  if (cfgAddString(pCfg, "smlAutoChildTableNameDelimiter", tsSmlAutoChildTableNameDelimiter, CFG_SCOPE_CLIENT) != 0)
+    return -1;
   if (cfgAddString(pCfg, "smlTagName", tsSmlTagName, CFG_SCOPE_CLIENT) != 0) return -1;
   if (cfgAddString(pCfg, "smlTsDefaultName", tsSmlTsDefaultName, CFG_SCOPE_CLIENT) != 0) return -1;
   if (cfgAddBool(pCfg, "smlDot2Underline", tsSmlDot2Underline, CFG_SCOPE_CLIENT) != 0) return -1;
@@ -675,7 +678,8 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   if (cfgAddInt64(pCfg, "checkpointInterval", tsStreamCheckpointInterval, 60, 1200, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddFloat(pCfg, "streamSinkDataRate", tsSinkDataRate, 0.1, 5, CFG_SCOPE_SERVER) != 0) return -1;
 
-  if (cfgAddInt32(pCfg, "cacheLazyLoadThreshold", tsCacheLazyLoadThreshold, 0, 100000, CFG_SCOPE_SERVER) != 0) return -1;
+  if (cfgAddInt32(pCfg, "cacheLazyLoadThreshold", tsCacheLazyLoadThreshold, 0, 100000, CFG_SCOPE_SERVER) != 0)
+    return -1;
 
   if (cfgAddString(pCfg, "lossyColumns", tsLossyColumns, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddFloat(pCfg, "fPrecision", tsFPrecision, 0.0f, 100000.0f, CFG_SCOPE_SERVER) != 0) return -1;
@@ -693,8 +697,11 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   if (cfgAddString(pCfg, "s3Accesskey", tsS3AccessKey, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddString(pCfg, "s3Endpoint", tsS3Endpoint, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddString(pCfg, "s3BucketName", tsS3BucketName, CFG_SCOPE_SERVER) != 0) return -1;
-  if (cfgAddInt32(pCfg, "s3BlockSize", tsS3BlockSize, 2048, 1024 * 1024, CFG_SCOPE_SERVER) != 0) return -1;
+  if (cfgAddInt32(pCfg, "s3BlockSize", tsS3BlockSize, -100, 1024 * 1024, CFG_SCOPE_SERVER) != 0) return -1;
   if (cfgAddInt32(pCfg, "s3BlockCacheSize", tsS3BlockCacheSize, 4, 1024 * 1024, CFG_SCOPE_SERVER) != 0) return -1;
+  if (cfgAddInt32(pCfg, "s3PageCacheSize", tsS3PageCacheSize, 4, 1024 * 1024 * 1024, CFG_SCOPE_SERVER) != 0) return -1;
+  if (cfgAddInt32(pCfg, "s3UploadDelaySec", tsS3UploadDelaySec, 60 * 10, 60 * 60 * 24 * 30, CFG_SCOPE_SERVER) != 0)
+    return -1;
 
   // min free disk space used to check if the disk is full [50MB, 1GB]
   if (cfgAddInt64(pCfg, "minDiskFreeSize", tsMinDiskFreeSize, TFS_MIN_DISK_FREE_SIZE, 1024 * 1024 * 1024,
@@ -953,7 +960,8 @@ static int32_t taosSetClientCfg(SConfig *pCfg) {
     return -1;
   }
 
-  tstrncpy(tsSmlAutoChildTableNameDelimiter, cfgGetItem(pCfg, "smlAutoChildTableNameDelimiter")->str, TSDB_TABLE_NAME_LEN);
+  tstrncpy(tsSmlAutoChildTableNameDelimiter, cfgGetItem(pCfg, "smlAutoChildTableNameDelimiter")->str,
+           TSDB_TABLE_NAME_LEN);
   tstrncpy(tsSmlChildTableName, cfgGetItem(pCfg, "smlChildTableName")->str, TSDB_TABLE_NAME_LEN);
   tstrncpy(tsSmlTagName, cfgGetItem(pCfg, "smlTagName")->str, TSDB_COL_NAME_LEN);
   tstrncpy(tsSmlTsDefaultName, cfgGetItem(pCfg, "smlTsDefaultName")->str, TSDB_COL_NAME_LEN);
@@ -1125,6 +1133,8 @@ static int32_t taosSetServerCfg(SConfig *pCfg) {
 
   tsS3BlockSize = cfgGetItem(pCfg, "s3BlockSize")->i32;
   tsS3BlockCacheSize = cfgGetItem(pCfg, "s3BlockCacheSize")->i32;
+  tsS3PageCacheSize = cfgGetItem(pCfg, "s3PageCacheSize")->i32;
+  tsS3UploadDelaySec = cfgGetItem(pCfg, "s3UploadDelaySec")->i32;
 
   GRANT_CFG_GET;
   return 0;
@@ -1422,7 +1432,8 @@ int32_t taosApplyLocalCfg(SConfig *pCfg, char *name) {
       } else if (strcasecmp("smlChildTableName", name) == 0) {
         tstrncpy(tsSmlChildTableName, cfgGetItem(pCfg, "smlChildTableName")->str, TSDB_TABLE_NAME_LEN);
       } else if (strcasecmp("smlAutoChildTableNameDelimiter", name) == 0) {
-        tstrncpy(tsSmlAutoChildTableNameDelimiter, cfgGetItem(pCfg, "smlAutoChildTableNameDelimiter")->str, TSDB_TABLE_NAME_LEN);
+        tstrncpy(tsSmlAutoChildTableNameDelimiter, cfgGetItem(pCfg, "smlAutoChildTableNameDelimiter")->str,
+                 TSDB_TABLE_NAME_LEN);
       } else if (strcasecmp("smlTagName", name) == 0) {
         tstrncpy(tsSmlTagName, cfgGetItem(pCfg, "smlTagName")->str, TSDB_COL_NAME_LEN);
         //      } else if (strcasecmp("smlDataFormat", name) == 0) {
@@ -1717,6 +1728,20 @@ void taosCfgDynamicOptions(const char *option, const char *value) {
     return;
   }
 
+  if (strcasecmp(option, "s3PageCacheSize") == 0) {
+    int32_t newS3PageCacheSize = atoi(value);
+    uInfo("s3PageCacheSize set from %d to %d", tsS3PageCacheSize, newS3PageCacheSize);
+    tsS3PageCacheSize = newS3PageCacheSize;
+    return;
+  }
+
+  if (strcasecmp(option, "s3UploadDelaySec") == 0) {
+    int32_t newS3UploadDelaysec = atoi(value);
+    uInfo("s3UploadDelaySec set from %d to %d", tsS3UploadDelaySec, newS3UploadDelaysec);
+    tsS3UploadDelaySec = newS3UploadDelaysec;
+    return;
+  }
+
   if (strcasecmp(option, "ttlPushInterval") == 0) {
     int32_t newTtlPushInterval = atoi(value);
     uInfo("ttlPushInterval set from %d to %d", tsTtlPushIntervalSec, newTtlPushInterval);
diff --git a/source/common/src/ttime.c b/source/common/src/ttime.c
index 6b5bb8680e..4b0848e5e9 100644
--- a/source/common/src/ttime.c
+++ b/source/common/src/ttime.c
@@ -1320,7 +1320,7 @@ static void tm2char(const SArray* formats, const struct STm* tm, char* s, int32_
         s += 4;
         break;
       case TSFKW_DDD:
-        sprintf(s, "%d", tm->tm.tm_yday);
+        sprintf(s, "%03d", tm->tm.tm_yday + 1);
         s += strlen(s);
         break;
       case TSFKW_DD:
diff --git a/source/common/test/commonTests.cpp b/source/common/test/commonTests.cpp
index dc320ebcb2..c65d8761b7 100644
--- a/source/common/test/commonTests.cpp
+++ b/source/common/test/commonTests.cpp
@@ -344,7 +344,7 @@ TEST(timeTest, ts2char) {
                "day-\"日\"",
                TSDB_TIME_PRECISION_MILLI,
                "2023-023-23-3-2023-023-23-3-年-OCTOBER  -OCT-October  -Oct-october  "
-               "-oct-月-285-13-6-285-13-6-FRIDAY   -Friday   -friday   -日");
+               "-oct-月-286-13-6-286-13-6-FRIDAY   -Friday   -friday   -日");
 #endif
   ts = 1697182085123L; // Friday, October 13, 2023 3:28:05.123 PM GMT+08:00
   test_ts2char(ts, "HH24:hh24:HH12:hh12:HH:hh:MI:mi:SS:ss:MS:ms:US:us:NS:ns:PM:AM:pm:am", TSDB_TIME_PRECISION_MILLI,
diff --git a/source/dnode/mnode/impl/src/mndDnode.c b/source/dnode/mnode/impl/src/mndDnode.c
index 7de6e860f9..c32625009e 100644
--- a/source/dnode/mnode/impl/src/mndDnode.c
+++ b/source/dnode/mnode/impl/src/mndDnode.c
@@ -721,7 +721,7 @@ static int32_t mndProcessNotifyReq(SRpcMsg *pReq) {
       mndReleaseVgroup(pMnode, pVgroup);
     }
   }
-    mndUpdClusterInfo(pReq);
+  mndUpdClusterInfo(pReq);
 _OVER:
   tFreeSNotifyReq(&notifyReq);
   return code;
@@ -1228,6 +1228,70 @@ static int32_t mndProcessConfigDnodeReq(SRpcMsg *pReq) {
 
     strcpy(dcfgReq.config, "monitor");
     snprintf(dcfgReq.value, TSDB_DNODE_VALUE_LEN, "%d", flag);
+  } else if (strncasecmp(cfgReq.config, "s3blocksize", 11) == 0) {
+    int32_t optLen = strlen("s3blocksize");
+    int32_t flag = -1;
+    int32_t code = mndMCfgGetValInt32(&cfgReq, optLen, &flag);
+    if (code < 0) return code;
+
+    if (flag > 1024 * 1024) {
+      mError("dnode:%d, failed to config s3blocksize since value:%d. Valid range: [4, 1024 * 1024]", cfgReq.dnodeId,
+             flag);
+      terrno = TSDB_CODE_INVALID_CFG;
+      tFreeSMCfgDnodeReq(&cfgReq);
+      return -1;
+    }
+
+    strcpy(dcfgReq.config, "s3blocksize");
+    snprintf(dcfgReq.value, TSDB_DNODE_VALUE_LEN, "%d", flag);
+  } else if (strncasecmp(cfgReq.config, "s3blockcachesize", 16) == 0) {
+    int32_t optLen = strlen("s3blockcachesize");
+    int32_t flag = -1;
+    int32_t code = mndMCfgGetValInt32(&cfgReq, optLen, &flag);
+    if (code < 0) return code;
+
+    if (flag < 4 || flag > 1024 * 1024) {
+      mError("dnode:%d, failed to config s3BlockCacheSize since value:%d. Valid range: [4, 1024 * 1024]",
+             cfgReq.dnodeId, flag);
+      terrno = TSDB_CODE_INVALID_CFG;
+      tFreeSMCfgDnodeReq(&cfgReq);
+      return -1;
+    }
+
+    strcpy(dcfgReq.config, "s3blockcachesize");
+    snprintf(dcfgReq.value, TSDB_DNODE_VALUE_LEN, "%d", flag);
+  } else if (strncasecmp(cfgReq.config, "s3pagecachesize", 16) == 0) {
+    int32_t optLen = strlen("s3pagecachesize");
+    int32_t flag = -1;
+    int32_t code = mndMCfgGetValInt32(&cfgReq, optLen, &flag);
+    if (code < 0) return code;
+
+    if (flag < 4 || flag > 1024 * 1024 * 1024) {
+      mError("dnode:%d, failed to config s3PageCacheSize since value:%d. Valid range: [4, 1024 * 1024]", cfgReq.dnodeId,
+             flag);
+      terrno = TSDB_CODE_INVALID_CFG;
+      tFreeSMCfgDnodeReq(&cfgReq);
+      return -1;
+    }
+
+    strcpy(dcfgReq.config, "s3pagecachesize");
+    snprintf(dcfgReq.value, TSDB_DNODE_VALUE_LEN, "%d", flag);
+  } else if (strncasecmp(cfgReq.config, "s3uploaddelaysec", 16) == 0) {
+    int32_t optLen = strlen("s3uploaddelaysec");
+    int32_t flag = -1;
+    int32_t code = mndMCfgGetValInt32(&cfgReq, optLen, &flag);
+    if (code < 0) return code;
+
+    if (flag < 600 || flag > 60 * 60 * 24 * 30) {
+      mError("dnode:%d, failed to config s3UploadDelaySec since value:%d. Valid range: [600, 60 * 60 * 24 * 30]",
+             cfgReq.dnodeId, flag);
+      terrno = TSDB_CODE_INVALID_CFG;
+      tFreeSMCfgDnodeReq(&cfgReq);
+      return -1;
+    }
+
+    strcpy(dcfgReq.config, "s3uploaddelaysec");
+    snprintf(dcfgReq.value, TSDB_DNODE_VALUE_LEN, "%d", flag);
   } else if (strncasecmp(cfgReq.config, "ttlpushinterval", 14) == 0) {
     int32_t optLen = strlen("ttlpushinterval");
     int32_t flag = -1;
diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index 1efcd9417d..ec69ae5ca7 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -382,6 +382,8 @@ struct STsdb {
   TdThreadMutex        biMutex;
   SLRUCache           *bCache;
   TdThreadMutex        bMutex;
+  SLRUCache           *pgCache;
+  TdThreadMutex        pgMutex;
   struct STFileSystem *pFS;  // new
   SRocksCache          rCache;
 };
@@ -909,7 +911,9 @@ int32_t tsdbCacheGetBlockIdx(SLRUCache *pCache, SDataFReader *pFileReader, LRUHa
 int32_t tsdbBICacheRelease(SLRUCache *pCache, LRUHandle *h);
 
 int32_t tsdbCacheGetBlockS3(SLRUCache *pCache, STsdbFD *pFD, LRUHandle **handle);
-int32_t tsdbBCacheRelease(SLRUCache *pCache, LRUHandle *h);
+int32_t tsdbCacheGetPageS3(SLRUCache *pCache, STsdbFD *pFD, int64_t pgno, LRUHandle **handle);
+int32_t tsdbCacheSetPageS3(SLRUCache *pCache, STsdbFD *pFD, int64_t pgno, uint8_t *pPage);
+int32_t tsdbCacheRelease(SLRUCache *pCache, LRUHandle *h);
 
 int32_t tsdbCacheDeleteLastrow(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey);
 int32_t tsdbCacheDeleteLast(SLRUCache *pCache, tb_uid_t uid, TSKEY eKey);
diff --git a/source/dnode/vnode/src/inc/vndCos.h b/source/dnode/vnode/src/inc/vndCos.h
index bb4d284f0e..8581b039f8 100644
--- a/source/dnode/vnode/src/inc/vndCos.h
+++ b/source/dnode/vnode/src/inc/vndCos.h
@@ -27,6 +27,8 @@ extern "C" {
 extern int8_t  tsS3Enabled;
 extern int32_t tsS3BlockSize;
 extern int32_t tsS3BlockCacheSize;
+extern int32_t tsS3PageCacheSize;
+extern int32_t tsS3UploadDelaySec;
 
 int32_t s3Init();
 void    s3CleanUp();
diff --git a/source/dnode/vnode/src/tsdb/tsdbCache.c b/source/dnode/vnode/src/tsdb/tsdbCache.c
index ca3fb7027f..bf6f0cf4d6 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCache.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCache.c
@@ -87,6 +87,41 @@ static void tsdbCloseBCache(STsdb *pTsdb) {
   }
 }
 
+static int32_t tsdbOpenPgCache(STsdb *pTsdb) {
+  int32_t code = 0;
+  // SLRUCache *pCache = taosLRUCacheInit(10 * 1024 * 1024, 0, .5);
+  int32_t szPage = pTsdb->pVnode->config.tsdbPageSize;
+
+  SLRUCache *pCache = taosLRUCacheInit((int64_t)tsS3PageCacheSize * szPage, 0, .5);
+  if (pCache == NULL) {
+    code = TSDB_CODE_OUT_OF_MEMORY;
+    goto _err;
+  }
+
+  taosLRUCacheSetStrictCapacity(pCache, false);
+
+  taosThreadMutexInit(&pTsdb->pgMutex, NULL);
+
+_err:
+  pTsdb->pgCache = pCache;
+  return code;
+}
+
+static void tsdbClosePgCache(STsdb *pTsdb) {
+  SLRUCache *pCache = pTsdb->pgCache;
+  if (pCache) {
+    int32_t elems = taosLRUCacheGetElems(pCache);
+    tsdbTrace("vgId:%d, elems: %d", TD_VID(pTsdb->pVnode), elems);
+    taosLRUCacheEraseUnrefEntries(pCache);
+    elems = taosLRUCacheGetElems(pCache);
+    tsdbTrace("vgId:%d, elems: %d", TD_VID(pTsdb->pVnode), elems);
+
+    taosLRUCacheCleanup(pCache);
+
+    taosThreadMutexDestroy(&pTsdb->bMutex);
+  }
+}
+
 #define ROCKS_KEY_LEN (sizeof(tb_uid_t) + sizeof(int16_t) + sizeof(int8_t))
 
 typedef struct {
@@ -1191,6 +1226,12 @@ int32_t tsdbOpenCache(STsdb *pTsdb) {
     goto _err;
   }
 
+  code = tsdbOpenPgCache(pTsdb);
+  if (code != TSDB_CODE_SUCCESS) {
+    code = TSDB_CODE_OUT_OF_MEMORY;
+    goto _err;
+  }
+
   code = tsdbOpenRocksCache(pTsdb);
   if (code != TSDB_CODE_SUCCESS) {
     code = TSDB_CODE_OUT_OF_MEMORY;
@@ -1221,6 +1262,7 @@ void tsdbCloseCache(STsdb *pTsdb) {
 
   tsdbCloseBICache(pTsdb);
   tsdbCloseBCache(pTsdb);
+  tsdbClosePgCache(pTsdb);
   tsdbCloseRocksCache(pTsdb);
 }
 
@@ -3057,7 +3099,6 @@ static int32_t tsdbCacheLoadBlockS3(STsdbFD *pFD, uint8_t **ppBlock) {
   }
   */
   int64_t block_offset = (pFD->blkno - 1) * tsS3BlockSize * pFD->szPage;
-  // int64_t size = 4096;
   code = s3GetObjectBlock(pFD->objName, block_offset, tsS3BlockSize * pFD->szPage, ppBlock);
   if (code != TSDB_CODE_SUCCESS) {
     // taosMemoryFree(pBlock);
@@ -3123,10 +3164,42 @@ int32_t tsdbCacheGetBlockS3(SLRUCache *pCache, STsdbFD *pFD, LRUHandle **handle)
   return code;
 }
 
-int32_t tsdbBCacheRelease(SLRUCache *pCache, LRUHandle *h) {
+int32_t tsdbCacheGetPageS3(SLRUCache *pCache, STsdbFD *pFD, int64_t pgno, LRUHandle **handle) {
   int32_t code = 0;
+  char    key[128] = {0};
+  int     keyLen = 0;
 
-  taosLRUCacheRelease(pCache, h, false);
+  getBCacheKey(pFD->fid, pFD->cid, pgno, key, &keyLen);
+  *handle = taosLRUCacheLookup(pCache, key, keyLen);
+
+  return code;
+}
+
+int32_t tsdbCacheSetPageS3(SLRUCache *pCache, STsdbFD *pFD, int64_t pgno, uint8_t *pPage) {
+  int32_t    code = 0;
+  char       key[128] = {0};
+  int        keyLen = 0;
+  LRUHandle *handle = NULL;
+
+  getBCacheKey(pFD->fid, pFD->cid, pgno, key, &keyLen);
+  taosThreadMutexLock(&pFD->pTsdb->pgMutex);
+  handle = taosLRUCacheLookup(pFD->pTsdb->pgCache, key, keyLen);
+  if (!handle) {
+    size_t              charge = pFD->szPage;
+    _taos_lru_deleter_t deleter = deleteBCache;
+    uint8_t            *pPg = taosMemoryMalloc(charge);
+    memcpy(pPg, pPage, charge);
+
+    LRUStatus status =
+        taosLRUCacheInsert(pCache, key, keyLen, pPg, charge, deleter, &handle, TAOS_LRU_PRIORITY_LOW, NULL);
+    if (status != TAOS_LRU_STATUS_OK) {
+      // ignore cache updating if not ok
+      // code = TSDB_CODE_OUT_OF_MEMORY;
+    }
+  }
+  taosThreadMutexUnlock(&pFD->pTsdb->pgMutex);
+
+  tsdbCacheRelease(pFD->pTsdb->pgCache, handle);
 
   return code;
 }
diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit2.c b/source/dnode/vnode/src/tsdb/tsdbCommit2.c
index 79ecdab15c..46e3aff0d4 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit2.c
@@ -46,6 +46,7 @@ typedef struct {
     STFileSet *fset;
     TABLEID    tbid[1];
     bool       hasTSData;
+    bool       skipTsRow;
   } ctx[1];
 
   // reader
@@ -127,18 +128,18 @@ static int32_t tsdbCommitTSData(SCommitter2 *committer) {
         continue;
       }
     }
-
+    /*
     extern int8_t tsS3Enabled;
 
     int32_t nlevel = tfsGetLevel(committer->tsdb->pVnode->pTfs);
-    bool    skipRow = false;
+    committer->ctx->skipTsRow = false;
     if (tsS3Enabled && nlevel > 1 && committer->ctx->did.level == nlevel - 1) {
-      skipRow = true;
+      committer->ctx->skipTsRow = true;
     }
-
+    */
     int64_t ts = TSDBROW_TS(&row->row);
 
-    if (skipRow && ts <= committer->ctx->maxKey) {
+    if (committer->ctx->skipTsRow && ts <= committer->ctx->maxKey) {
       ts = committer->ctx->maxKey + 1;
     }
 
@@ -402,6 +403,32 @@ static int32_t tsdbCommitFileSetBegin(SCommitter2 *committer) {
   // reset nextKey
   committer->ctx->nextKey = TSKEY_MAX;
 
+  committer->ctx->skipTsRow = false;
+
+  extern int8_t  tsS3Enabled;
+  extern int32_t tsS3UploadDelaySec;
+  long           s3Size(const char *object_name);
+  int32_t        nlevel = tfsGetLevel(committer->tsdb->pVnode->pTfs);
+  committer->ctx->skipTsRow = false;
+  if (tsS3Enabled && nlevel > 1 && committer->ctx->fset) {
+    STFileObj *fobj = committer->ctx->fset->farr[TSDB_FTYPE_DATA];
+    if (fobj && fobj->f->did.level == nlevel - 1) {
+      // if exists on s3 or local mtime < committer->ctx->now - tsS3UploadDelay
+      const char *object_name = taosDirEntryBaseName((char *)fobj->fname);
+
+      if (taosCheckExistFile(fobj->fname)) {
+        int32_t mtime = 0;
+        taosStatFile(fobj->fname, NULL, &mtime, NULL);
+        if (mtime < committer->ctx->now - tsS3UploadDelaySec) {
+          committer->ctx->skipTsRow = true;
+        }
+      } else if (s3Size(object_name) > 0) {
+        committer->ctx->skipTsRow = true;
+      }
+    }
+    // new fset can be written with ts data
+  }
+
 _exit:
   if (code) {
     TSDB_ERROR_LOG(TD_VID(tsdb->pVnode), lino, code);
diff --git a/source/dnode/vnode/src/tsdb/tsdbFile2.c b/source/dnode/vnode/src/tsdb/tsdbFile2.c
index 963c5bad34..9edb03d35b 100644
--- a/source/dnode/vnode/src/tsdb/tsdbFile2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbFile2.c
@@ -303,6 +303,7 @@ bool tsdbIsSameTFile(const STFile *f1, const STFile *f2) {
   if (f1->did.id != f2->did.id) return false;
   if (f1->fid != f2->fid) return false;
   if (f1->cid != f2->cid) return false;
+  if (f1->s3flag != f2->s3flag) return false;
   return true;
 }
 
diff --git a/source/dnode/vnode/src/tsdb/tsdbFile2.h b/source/dnode/vnode/src/tsdb/tsdbFile2.h
index 33d8ac5478..9da198c1f0 100644
--- a/source/dnode/vnode/src/tsdb/tsdbFile2.h
+++ b/source/dnode/vnode/src/tsdb/tsdbFile2.h
@@ -58,6 +58,7 @@ int32_t tsdbTFileObjCmpr(const STFileObj **fobj1, const STFileObj **fobj2);
 struct STFile {
   tsdb_ftype_t type;
   SDiskID      did;  // disk id
+  int32_t      s3flag;
   int32_t      fid;  // file id
   int64_t      cid;  // commit id
   int64_t      size;
diff --git a/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c b/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
index f3bcfef703..def9a73d10 100644
--- a/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
+++ b/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
@@ -131,6 +131,7 @@ static int32_t tsdbWriteFilePage(STsdbFD *pFD) {
   }
 
   if (pFD->s3File) {
+    tsdbWarn("%s file: %s", __func__, pFD->path);
     return code;
   }
   if (pFD->pgno > 0) {
@@ -177,7 +178,7 @@ static int32_t tsdbReadFilePage(STsdbFD *pFD, int64_t pgno) {
     pFD->blkno = (pgno + tsS3BlockSize - 1) / tsS3BlockSize;
     code = tsdbCacheGetBlockS3(pFD->pTsdb->bCache, pFD, &handle);
     if (code != TSDB_CODE_SUCCESS || handle == NULL) {
-      tsdbBCacheRelease(pFD->pTsdb->bCache, handle);
+      tsdbCacheRelease(pFD->pTsdb->bCache, handle);
       if (code == TSDB_CODE_SUCCESS && !handle) {
         code = TSDB_CODE_OUT_OF_MEMORY;
       }
@@ -189,7 +190,7 @@ static int32_t tsdbReadFilePage(STsdbFD *pFD, int64_t pgno) {
     int64_t blk_offset = (pFD->blkno - 1) * tsS3BlockSize * pFD->szPage;
     memcpy(pFD->pBuf, pBlock + (offset - blk_offset), pFD->szPage);
 
-    tsdbBCacheRelease(pFD->pTsdb->bCache, handle);
+    tsdbCacheRelease(pFD->pTsdb->bCache, handle);
   } else {
     // seek
     int64_t n = taosLSeekFile(pFD->pFD, offset, SEEK_SET);
@@ -253,7 +254,7 @@ _exit:
   return code;
 }
 
-int32_t tsdbReadFile(STsdbFD *pFD, int64_t offset, uint8_t *pBuf, int64_t size) {
+static int32_t tsdbReadFileImp(STsdbFD *pFD, int64_t offset, uint8_t *pBuf, int64_t size) {
   int32_t code = 0;
   int64_t n = 0;
   int64_t fOffset = LOGIC_TO_FILE_OFFSET(offset, pFD->szPage);
@@ -282,10 +283,122 @@ _exit:
   return code;
 }
 
+static int32_t tsdbReadFileS3(STsdbFD *pFD, int64_t offset, uint8_t *pBuf, int64_t size) {
+  int32_t code = 0;
+  int64_t n = 0;
+  int32_t szPgCont = PAGE_CONTENT_SIZE(pFD->szPage);
+  int64_t fOffset = LOGIC_TO_FILE_OFFSET(offset, pFD->szPage);
+  int64_t pgno = OFFSET_PGNO(fOffset, pFD->szPage);
+  int64_t bOffset = fOffset % pFD->szPage;
+
+  ASSERT(bOffset < szPgCont);
+
+  // 1, find pgnoStart & pgnoEnd to fetch from s3, if all pgs are local, no need to fetch
+  // 2, fetch pgnoStart ~ pgnoEnd from s3
+  // 3, store pgs to pcache & last pg to pFD->pBuf
+  // 4, deliver pgs to [pBuf, pBuf + size)
+
+  while (n < size) {
+    if (pFD->pgno != pgno) {
+      LRUHandle *handle = NULL;
+      code = tsdbCacheGetPageS3(pFD->pTsdb->pgCache, pFD, pgno, &handle);
+      if (code != TSDB_CODE_SUCCESS) {
+        if (handle) {
+          tsdbCacheRelease(pFD->pTsdb->pgCache, handle);
+        }
+        goto _exit;
+      }
+
+      if (!handle) {
+        break;
+      }
+
+      uint8_t *pPage = (uint8_t *)taosLRUCacheValue(pFD->pTsdb->pgCache, handle);
+      memcpy(pFD->pBuf, pPage, pFD->szPage);
+      tsdbCacheRelease(pFD->pTsdb->pgCache, handle);
+
+      // check
+      if (pgno > 1 && !taosCheckChecksumWhole(pFD->pBuf, pFD->szPage)) {
+        code = TSDB_CODE_FILE_CORRUPTED;
+        goto _exit;
+      }
+
+      pFD->pgno = pgno;
+    }
+
+    int64_t nRead = TMIN(szPgCont - bOffset, size - n);
+    memcpy(pBuf + n, pFD->pBuf + bOffset, nRead);
+
+    n += nRead;
+    pgno++;
+    bOffset = 0;
+  }
+
+  if (n < size) {
+    // 2, retrieve pgs from s3
+    uint8_t *pBlock = NULL;
+    int64_t  retrieve_offset = PAGE_OFFSET(pgno, pFD->szPage);
+    int64_t  pgnoEnd = pgno - 1 + (size - n + szPgCont - 1) / szPgCont;
+    int64_t  retrieve_size = (pgnoEnd - pgno + 1) * pFD->szPage;
+    code = s3GetObjectBlock(pFD->objName, retrieve_offset, retrieve_size, &pBlock);
+    if (code != TSDB_CODE_SUCCESS) {
+      goto _exit;
+    }
+
+    // 3, Store Pages in Cache
+    int nPage = pgnoEnd - pgno + 1;
+    for (int i = 0; i < nPage; ++i) {
+      tsdbCacheSetPageS3(pFD->pTsdb->pgCache, pFD, pgno, pBlock + i * pFD->szPage);
+
+      memcpy(pFD->pBuf, pBlock + i * pFD->szPage, pFD->szPage);
+
+      // check
+      if (pgno > 1 && !taosCheckChecksumWhole(pFD->pBuf, pFD->szPage)) {
+        code = TSDB_CODE_FILE_CORRUPTED;
+        goto _exit;
+      }
+
+      pFD->pgno = pgno;
+
+      int64_t nRead = TMIN(szPgCont - bOffset, size - n);
+      memcpy(pBuf + n, pFD->pBuf + bOffset, nRead);
+
+      n += nRead;
+      pgno++;
+      bOffset = 0;
+    }
+
+    taosMemoryFree(pBlock);
+  }
+
+_exit:
+  return code;
+}
+
+int32_t tsdbReadFile(STsdbFD *pFD, int64_t offset, uint8_t *pBuf, int64_t size) {
+  int32_t code = 0;
+  if (!pFD->pFD) {
+    code = tsdbOpenFileImpl(pFD);
+    if (code) {
+      goto _exit;
+    }
+  }
+
+  if (pFD->s3File && tsS3BlockSize < 0) {
+    return tsdbReadFileS3(pFD, offset, pBuf, size);
+  } else {
+    return tsdbReadFileImp(pFD, offset, pBuf, size);
+  }
+
+_exit:
+  return code;
+}
+
 int32_t tsdbFsyncFile(STsdbFD *pFD) {
   int32_t code = 0;
 
   if (pFD->s3File) {
+    tsdbWarn("%s file: %s", __func__, pFD->path);
     return code;
   }
   code = tsdbWriteFilePage(pFD);
diff --git a/source/dnode/vnode/src/tsdb/tsdbRetention.c b/source/dnode/vnode/src/tsdb/tsdbRetention.c
index 6c41b46c73..0fc1e1b64b 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRetention.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRetention.c
@@ -206,6 +206,8 @@ static int32_t tsdbMigrateDataFileS3(SRTNer *rtner, const STFileObj *fobj, const
           },
   };
 
+  op.nf.s3flag = true;
+
   code = TARRAY2_APPEND(rtner->fopArr, op);
   TSDB_CHECK_CODE(code, lino, _exit);
 
@@ -322,27 +324,40 @@ static int32_t tsdbDoRetentionOnFileSet(SRTNer *rtner, STFileSet *fset) {
     for (int32_t ftype = 0; ftype < TSDB_FTYPE_MAX && (fobj = fset->farr[ftype], 1); ++ftype) {
       if (fobj == NULL) continue;
 
-      if (fobj->f->did.level == did.level) continue;
-
       int32_t nlevel = tfsGetLevel(rtner->tsdb->pVnode->pTfs);
-      if (tsS3Enabled && nlevel > 1 && TSDB_FTYPE_DATA == ftype && did.level == nlevel - 1) {
-        code = tsdbMigrateDataFileS3(rtner, fobj, &did);
-        TSDB_CHECK_CODE(code, lino, _exit);
-      } else {
-        if (tsS3Enabled) {
-          int64_t fsize = 0;
-          if (taosStatFile(fobj->fname, &fsize, NULL, NULL) < 0) {
-            code = TAOS_SYSTEM_ERROR(terrno);
-            tsdbError("vgId:%d %s failed since file:%s stat failed, reason:%s", TD_VID(rtner->tsdb->pVnode), __func__,
-                      fobj->fname, tstrerror(code));
+
+      if (fobj->f->did.level == did.level) {
+        if (tsS3Enabled && nlevel > 1 && TSDB_FTYPE_DATA == ftype && did.level == nlevel - 1 &&
+            taosCheckExistFile(fobj->fname)) {
+          int32_t mtime = 0;
+          taosStatFile(fobj->fname, NULL, &mtime, NULL);
+          if (mtime < rtner->now - tsS3UploadDelaySec) {
+            code = tsdbMigrateDataFileS3(rtner, fobj, &did);
             TSDB_CHECK_CODE(code, lino, _exit);
           }
-          s3EvictCache(fobj->fname, fsize * 2);
         }
 
-        code = tsdbDoMigrateFileObj(rtner, fobj, &did);
-        TSDB_CHECK_CODE(code, lino, _exit);
+        continue;
       }
+      /*
+    if (tsS3Enabled && nlevel > 1 && TSDB_FTYPE_DATA == ftype && did.level == nlevel - 1) {
+      code = tsdbMigrateDataFileS3(rtner, fobj, &did);
+      TSDB_CHECK_CODE(code, lino, _exit);
+    } else {
+
+      if (tsS3Enabled) {
+        int64_t fsize = 0;
+        if (taosStatFile(fobj->fname, &fsize, NULL, NULL) < 0) {
+          code = TAOS_SYSTEM_ERROR(terrno);
+          tsdbError("vgId:%d %s failed since file:%s stat failed, reason:%s", TD_VID(rtner->tsdb->pVnode),
+      __func__, fobj->fname, tstrerror(code)); TSDB_CHECK_CODE(code, lino, _exit);
+        }
+        s3EvictCache(fobj->fname, fsize * 2);
+      }
+      */
+      code = tsdbDoMigrateFileObj(rtner, fobj, &did);
+      TSDB_CHECK_CODE(code, lino, _exit);
+      //}
     }
 
     // stt
diff --git a/source/dnode/vnode/src/tsdb/tsdbWrite.c b/source/dnode/vnode/src/tsdb/tsdbWrite.c
index 5949b103d5..1e6526da48 100644
--- a/source/dnode/vnode/src/tsdb/tsdbWrite.c
+++ b/source/dnode/vnode/src/tsdb/tsdbWrite.c
@@ -80,8 +80,8 @@ int tsdbScanAndConvertSubmitMsg(STsdb *pTsdb, SSubmitReq2 *pMsg) {
   TSKEY         minKey = now - tsTickPerMin[pCfg->precision] * pCfg->keep2;
   TSKEY         maxKey = tsMaxKeyByPrecision[pCfg->precision];
   int32_t       size = taosArrayGetSize(pMsg->aSubmitTbData);
-  int32_t       nlevel = tfsGetLevel(pTsdb->pVnode->pTfs);
-
+  /*
+  int32_t nlevel = tfsGetLevel(pTsdb->pVnode->pTfs);
   if (nlevel > 1 && tsS3Enabled) {
     if (nlevel == 3) {
       minKey = now - tsTickPerMin[pCfg->precision] * pCfg->keep1;
@@ -89,7 +89,7 @@ int tsdbScanAndConvertSubmitMsg(STsdb *pTsdb, SSubmitReq2 *pMsg) {
       minKey = now - tsTickPerMin[pCfg->precision] * pCfg->keep0;
     }
   }
-
+  */
   for (int32_t i = 0; i < size; ++i) {
     SSubmitTbData *pData = TARRAY_GET_ELEM(pMsg->aSubmitTbData, i);
     if (pData->flags & SUBMIT_REQ_COLUMN_DATA_FORMAT) {
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index 12883a34af..b31463ac00 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -13,14 +13,14 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "audit.h"
 #include "tencode.h"
 #include "tmsg.h"
+#include "tstrbuild.h"
 #include "vnd.h"
 #include "vndCos.h"
 #include "vnode.h"
 #include "vnodeInt.h"
-#include "audit.h"
-#include "tstrbuild.h"
 
 static int32_t vnodeProcessCreateStbReq(SVnode *pVnode, int64_t ver, void *pReq, int32_t len, SRpcMsg *pRsp);
 static int32_t vnodeProcessAlterStbReq(SVnode *pVnode, int64_t ver, void *pReq, int32_t len, SRpcMsg *pRsp);
@@ -178,7 +178,7 @@ static int32_t vnodePreProcessDropTtlMsg(SVnode *pVnode, SRpcMsg *pMsg) {
     ttlReq.pTbUids = tbUids;
   }
 
-  { // prepare new content
+  {  // prepare new content
     int32_t reqLenNew = tSerializeSVDropTtlTableReq(NULL, 0, &ttlReq);
     int32_t contLenNew = reqLenNew + sizeof(SMsgHead);
 
@@ -263,8 +263,9 @@ static int32_t vnodePreProcessSubmitTbData(SVnode *pVnode, SDecoder *pCoder, int
     now *= 1000000;
   }
 
-  int32_t nlevel = tfsGetLevel(pVnode->pTfs);
   int32_t keep = pVnode->config.tsdbCfg.keep2;
+  /*
+  int32_t nlevel = tfsGetLevel(pVnode->pTfs);
   if (nlevel > 1 && tsS3Enabled) {
     if (nlevel == 3) {
       keep = pVnode->config.tsdbCfg.keep1;
@@ -272,6 +273,7 @@ static int32_t vnodePreProcessSubmitTbData(SVnode *pVnode, SDecoder *pCoder, int
       keep = pVnode->config.tsdbCfg.keep0;
     }
   }
+  */
 
   TSKEY minKey = now - tsTickPerMin[pVnode->config.tsdbCfg.precision] * keep;
   TSKEY maxKey = tsMaxKeyByPrecision[pVnode->config.tsdbCfg.precision];
@@ -904,7 +906,7 @@ static int32_t vnodeProcessCreateTbReq(SVnode *pVnode, int64_t ver, void *pReq,
 
   rsp.pArray = taosArrayInit(req.nReqs, sizeof(cRsp));
   tbUids = taosArrayInit(req.nReqs, sizeof(int64_t));
-  tbNames = taosArrayInit(req.nReqs, sizeof(char*));
+  tbNames = taosArrayInit(req.nReqs, sizeof(char *));
   if (rsp.pArray == NULL || tbUids == NULL || tbNames == NULL) {
     rcode = -1;
     terrno = TSDB_CODE_OUT_OF_MEMORY;
@@ -950,8 +952,8 @@ static int32_t vnodeProcessCreateTbReq(SVnode *pVnode, int64_t ver, void *pReq,
 
     taosArrayPush(rsp.pArray, &cRsp);
 
-    if(tsEnableAuditCreateTable){
-      char* str = taosMemoryCalloc(1, TSDB_TABLE_FNAME_LEN);
+    if (tsEnableAuditCreateTable) {
+      char *str = taosMemoryCalloc(1, TSDB_TABLE_FNAME_LEN);
       strcpy(str, pCreateReq->name);
       taosArrayPush(tbNames, &str);
     }
@@ -976,24 +978,24 @@ static int32_t vnodeProcessCreateTbReq(SVnode *pVnode, int64_t ver, void *pReq,
   tEncoderInit(&encoder, pRsp->pCont, pRsp->contLen);
   tEncodeSVCreateTbBatchRsp(&encoder, &rsp);
 
-  if(tsEnableAuditCreateTable){
+  if (tsEnableAuditCreateTable) {
     int64_t clusterId = pVnode->config.syncCfg.nodeInfo[0].clusterId;
 
     SName name = {0};
     tNameFromString(&name, pVnode->config.dbname, T_NAME_ACCT | T_NAME_DB);
 
     SStringBuilder sb = {0};
-    for(int32_t iReq = 0; iReq < req.nReqs; iReq++){
-      char** key = (char**)taosArrayGet(tbNames, iReq);
+    for (int32_t iReq = 0; iReq < req.nReqs; iReq++) {
+      char **key = (char **)taosArrayGet(tbNames, iReq);
       taosStringBuilderAppendStringLen(&sb, *key, strlen(*key));
-      if(iReq < req.nReqs - 1){
+      if (iReq < req.nReqs - 1) {
         taosStringBuilderAppendChar(&sb, ',');
       }
       taosMemoryFreeClear(*key);
     }
 
-    size_t    len = 0;
-    char*     keyJoined = taosStringBuilderGetResult(&sb, &len);
+    size_t len = 0;
+    char  *keyJoined = taosStringBuilderGetResult(&sb, &len);
 
     auditRecord(NULL, clusterId, "createTable", name.dbname, "", keyJoined, len);
 
@@ -1005,7 +1007,7 @@ _exit:
     pCreateReq = req.pReqs + iReq;
     taosMemoryFree(pCreateReq->sql);
     taosMemoryFree(pCreateReq->comment);
-    taosArrayDestroy(pCreateReq->ctb.tagName);    
+    taosArrayDestroy(pCreateReq->ctb.tagName);
   }
   taosArrayDestroyEx(rsp.pArray, tFreeSVCreateTbRsp);
   taosArrayDestroy(tbUids);
@@ -1164,7 +1166,7 @@ static int32_t vnodeProcessDropTbReq(SVnode *pVnode, int64_t ver, void *pReq, in
   // process req
   tbUids = taosArrayInit(req.nReqs, sizeof(int64_t));
   rsp.pArray = taosArrayInit(req.nReqs, sizeof(SVDropTbRsp));
-  tbNames = taosArrayInit(req.nReqs, sizeof(char*));
+  tbNames = taosArrayInit(req.nReqs, sizeof(char *));
   if (tbUids == NULL || rsp.pArray == NULL || tbNames == NULL) goto _exit;
 
   for (int32_t iReq = 0; iReq < req.nReqs; iReq++) {
@@ -1186,9 +1188,9 @@ static int32_t vnodeProcessDropTbReq(SVnode *pVnode, int64_t ver, void *pReq, in
     }
 
     taosArrayPush(rsp.pArray, &dropTbRsp);
-    
-    if(tsEnableAuditCreateTable){
-      char* str = taosMemoryCalloc(1, TSDB_TABLE_FNAME_LEN);
+
+    if (tsEnableAuditCreateTable) {
+      char *str = taosMemoryCalloc(1, TSDB_TABLE_FNAME_LEN);
       strcpy(str, pDropTbReq->name);
       taosArrayPush(tbNames, &str);
     }
@@ -1197,30 +1199,30 @@ static int32_t vnodeProcessDropTbReq(SVnode *pVnode, int64_t ver, void *pReq, in
   tqUpdateTbUidList(pVnode->pTq, tbUids, false);
   tdUpdateTbUidList(pVnode->pSma, pStore, false);
 
-  if(tsEnableAuditCreateTable){
+  if (tsEnableAuditCreateTable) {
     int64_t clusterId = pVnode->config.syncCfg.nodeInfo[0].clusterId;
 
     SName name = {0};
     tNameFromString(&name, pVnode->config.dbname, T_NAME_ACCT | T_NAME_DB);
 
     SStringBuilder sb = {0};
-    for(int32_t iReq = 0; iReq < req.nReqs; iReq++){
-      char** key = (char**)taosArrayGet(tbNames, iReq);
+    for (int32_t iReq = 0; iReq < req.nReqs; iReq++) {
+      char **key = (char **)taosArrayGet(tbNames, iReq);
       taosStringBuilderAppendStringLen(&sb, *key, strlen(*key));
-      if(iReq < req.nReqs - 1){
+      if (iReq < req.nReqs - 1) {
         taosStringBuilderAppendChar(&sb, ',');
       }
       taosMemoryFreeClear(*key);
     }
 
-    size_t    len = 0;
-    char*     keyJoined = taosStringBuilderGetResult(&sb, &len);
+    size_t len = 0;
+    char  *keyJoined = taosStringBuilderGetResult(&sb, &len);
 
     auditRecord(NULL, clusterId, "dropTable", name.dbname, "", keyJoined, len);
 
     taosStringBuilderDestroy(&sb);
   }
-  
+
 _exit:
   taosArrayDestroy(tbUids);
   tdUidStoreFree(pStore);
@@ -1518,7 +1520,6 @@ static int32_t vnodeProcessSubmitReq(SVnode *pVnode, int64_t ver, void *pReq, in
       int32_t nRow = TARRAY_SIZE(pSubmitTbData->aRowP);
       SRow  **aRow = (SRow **)TARRAY_DATA(pSubmitTbData->aRowP);
       for (int32_t iRow = 0; iRow < nRow; ++iRow) {
-
         if (aRow[iRow]->ts < minKey || aRow[iRow]->ts > maxKey || (iRow > 0 && aRow[iRow]->ts <= aRow[iRow - 1]->ts)) {
           code = TSDB_CODE_INVALID_MSG;
           vError("vgId:%d %s failed since %s, version:%" PRId64, TD_VID(pVnode), __func__, tstrerror(code), ver);
@@ -1627,7 +1628,7 @@ static int32_t vnodeProcessSubmitReq(SVnode *pVnode, int64_t ver, void *pReq, in
         if (terrno != TSDB_CODE_TDB_TABLE_ALREADY_EXIST) {
           code = terrno;
           vError("vgId:%d failed to create table:%s, code:%s", TD_VID(pVnode), pSubmitTbData->pCreateTbReq->name,
-              tstrerror(terrno));
+                 tstrerror(terrno));
           goto _exit;
         }
         terrno = 0;
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 84aff9fa88..fdbc0b4038 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -3315,7 +3315,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
   {
     .name = "to_timestamp",
     .type = FUNCTION_TYPE_TO_TIMESTAMP,
-    .classification = FUNC_MGT_SCALAR_FUNC,
+    .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_DATETIME_FUNC,
     .translateFunc = translateToTimestamp,
     .getEnvFunc = NULL,
     .initFunc = NULL,
diff --git a/source/libs/qworker/src/qworker.c b/source/libs/qworker/src/qworker.c
index afce4a496a..7376aa3a9c 100644
--- a/source/libs/qworker/src/qworker.c
+++ b/source/libs/qworker/src/qworker.c
@@ -434,27 +434,31 @@ int32_t qwQuickRspFetchReq(QW_FPARAMS_DEF, SQWTaskCtx    * ctx, SQWMsg *qwMsg, i
       void       *rsp = NULL;
       int32_t     dataLen = 0;
       SOutputData sOutput = {0};
-      if (qwGetQueryResFromSink(QW_FPARAMS(), ctx, &dataLen, &rsp, &sOutput)) {
+      if (TSDB_CODE_SUCCESS == code) {
+        code = qwGetQueryResFromSink(QW_FPARAMS(), ctx, &dataLen, &rsp, &sOutput);
+      }
+
+      if (NULL == rsp && TSDB_CODE_SUCCESS == code) {
         return TSDB_CODE_SUCCESS;
       }
 
-      if (rsp) {
+      if (NULL != rsp) {
         bool qComplete = (DS_BUF_EMPTY == sOutput.bufStatus && sOutput.queryEnd);
 
         qwBuildFetchRsp(rsp, &sOutput, dataLen, qComplete);
         if (qComplete) {
           atomic_store_8((int8_t *)&ctx->queryEnd, true);
         }
-
-        qwMsg->connInfo = ctx->dataConnInfo;
-        QW_SET_EVENT_PROCESSED(ctx, QW_EVENT_FETCH);
-
-        qwBuildAndSendFetchRsp(ctx->fetchMsgType + 1, &qwMsg->connInfo, rsp, dataLen, code);
-        rsp = NULL;
-
-        QW_TASK_DLOG("fetch rsp send, handle:%p, code:%x - %s, dataLen:%d", qwMsg->connInfo.handle, code, tstrerror(code),
-                     dataLen);
       }
+
+      qwMsg->connInfo = ctx->dataConnInfo;
+      QW_SET_EVENT_PROCESSED(ctx, QW_EVENT_FETCH);
+      
+      qwBuildAndSendFetchRsp(ctx->fetchMsgType + 1, &qwMsg->connInfo, rsp, dataLen, code);
+      rsp = NULL;
+      
+      QW_TASK_DLOG("fetch rsp send, handle:%p, code:%x - %s, dataLen:%d", qwMsg->connInfo.handle, code, tstrerror(code),
+                   dataLen);
     } 
   }
 
diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index 48886b1eec..dbdd79cc65 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -1230,7 +1230,7 @@ int32_t toTimestampFunction(SScalarParam* pInput, int32_t inputNum, SScalarParam
     code = taosChar2Ts(format, &formats, tsStr, &ts, precision, errMsg, 128);
     if (code) {
       qError("func to_timestamp failed %s", errMsg);
-      code = TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED;
+      code = code == -1 ? TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED_FORMAT_ERR : TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED_TS_ERR;
       break;
     }
     colDataSetVal(pOutput->columnData, i, (char *)&ts, false);
diff --git a/source/libs/sync/src/syncSnapshot.c b/source/libs/sync/src/syncSnapshot.c
index 0b94d377f1..8e186af51f 100644
--- a/source/libs/sync/src/syncSnapshot.c
+++ b/source/libs/sync/src/syncSnapshot.c
@@ -23,6 +23,8 @@
 #include "syncReplication.h"
 #include "syncUtil.h"
 
+int32_t syncSnapSendMsg(SSyncSnapshotSender *pSender, int32_t seq, void *pBlock, int32_t len, int32_t typ);
+
 static void syncSnapBufferReset(SSyncSnapBuffer *pBuf) {
   taosThreadMutexLock(&pBuf->mutex);
   for (int64_t i = pBuf->start; i < pBuf->end; ++i) {
@@ -160,8 +162,11 @@ int32_t snapshotSenderStart(SSyncSnapshotSender *pSender) {
   }
 
   int dataLen = 0;
-  if (snapInfo.data) {
-    SSyncTLV *datHead = snapInfo.data;
+  void   *pData = snapInfo.data;
+  int32_t type = 0;
+  if (pData) {
+    type = snapInfo.type;
+    SSyncTLV *datHead = pData;
     if (datHead->typ != TDMT_SYNC_PREP_SNAPSHOT) {
       sSError(pSender, "unexpected data typ in data of snapshot info. typ: %d", datHead->typ);
       terrno = TSDB_CODE_INVALID_DATA_FMT;
@@ -170,37 +175,12 @@ int32_t snapshotSenderStart(SSyncSnapshotSender *pSender) {
     dataLen = sizeof(SSyncTLV) + datHead->len;
   }
 
-  SRpcMsg rpcMsg = {0};
-  if (syncBuildSnapshotSend(&rpcMsg, dataLen, pSender->pSyncNode->vgId) != 0) {
-    sSError(pSender, "snapshot sender build msg failed since %s", terrstr());
+  if (syncSnapSendMsg(pSender, pSender->seq, pData, dataLen, type) != 0) {
     goto _out;
   }
 
-  SyncSnapshotSend *pMsg = rpcMsg.pCont;
-  pMsg->srcId = pSender->pSyncNode->myRaftId;
-  pMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
-  pMsg->term = pSender->term;
-  pMsg->beginIndex = pSender->snapshotParam.start;
-  pMsg->lastIndex = pSender->snapshot.lastApplyIndex;
-  pMsg->lastTerm = pSender->snapshot.lastApplyTerm;
-  pMsg->lastConfigIndex = pSender->snapshot.lastConfigIndex;
-  pMsg->lastConfig = pSender->lastConfig;
-  pMsg->startTime = pSender->startTime;
-  pMsg->seq = pSender->seq;
-
-  if (dataLen > 0) {
-    pMsg->payloadType = snapInfo.type;
-    memcpy(pMsg->data, snapInfo.data, dataLen);
-  }
-
-  // send msg
-  if (syncNodeSendMsgById(&pMsg->destId, pSender->pSyncNode, &rpcMsg) != 0) {
-    sSError(pSender, "snapshot sender send msg failed since %s", terrstr());
-    goto _out;
-  }
-
-  sSInfo(pSender, "snapshot sender start, to dnode:%d.", DID(&pMsg->destId));
-
+  SRaftId destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
+  sSInfo(pSender, "snapshot sender start, to dnode:%d.", DID(&destId));
   code = 0;
 _out:
   if (snapInfo.data) {
@@ -232,6 +212,43 @@ void snapshotSenderStop(SSyncSnapshotSender *pSender, bool finish) {
   sSInfo(pSender, "snapshot sender stop, to dnode:%d, finish:%d", DID(&destId), finish);
 }
 
+int32_t syncSnapSendMsg(SSyncSnapshotSender *pSender, int32_t seq, void *pBlock, int32_t blockLen, int32_t typ) {
+  int32_t code = -1;
+  SRpcMsg rpcMsg = {0};
+
+  if (syncBuildSnapshotSend(&rpcMsg, blockLen, pSender->pSyncNode->vgId) != 0) {
+    sSError(pSender, "failed to build snap replication msg since %s", terrstr());
+    goto _OUT;
+  }
+
+  SyncSnapshotSend *pMsg = rpcMsg.pCont;
+  pMsg->srcId = pSender->pSyncNode->myRaftId;
+  pMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
+  pMsg->term = pSender->term;
+  pMsg->beginIndex = pSender->snapshotParam.start;
+  pMsg->lastIndex = pSender->snapshot.lastApplyIndex;
+  pMsg->lastTerm = pSender->snapshot.lastApplyTerm;
+  pMsg->lastConfigIndex = pSender->snapshot.lastConfigIndex;
+  pMsg->lastConfig = pSender->lastConfig;
+  pMsg->startTime = pSender->startTime;
+  pMsg->seq = seq;
+
+  if (pBlock != NULL && blockLen > 0) {
+    memcpy(pMsg->data, pBlock, blockLen);
+  }
+  pMsg->payloadType = typ;
+
+  // send msg
+  if (syncNodeSendMsgById(&pMsg->destId, pSender->pSyncNode, &rpcMsg) != 0) {
+    sSError(pSender, "failed to send snap replication msg since %s. seq:%d", terrstr(), seq);
+    goto _OUT;
+  }
+
+  code = 0;
+_OUT:
+  return code;
+}
+
 // when sender receive ack, call this function to send msg from seq
 // seq = ack + 1, already updated
 static int32_t snapshotSend(SSyncSnapshotSender *pSender) {
@@ -273,33 +290,10 @@ static int32_t snapshotSend(SSyncSnapshotSender *pSender) {
 
   ASSERT(pSender->seq >= SYNC_SNAPSHOT_SEQ_BEGIN && pSender->seq <= SYNC_SNAPSHOT_SEQ_END);
 
-  int32_t blockLen = (pBlk != NULL) ? pBlk->blockLen : 0;
-  // build msg
-  SRpcMsg rpcMsg = {0};
-  if (syncBuildSnapshotSend(&rpcMsg, blockLen, pSender->pSyncNode->vgId) != 0) {
-    sSError(pSender, "vgId:%d, snapshot sender build msg failed since %s", pSender->pSyncNode->vgId, terrstr());
-    goto _OUT;
-  }
-
-  SyncSnapshotSend *pMsg = rpcMsg.pCont;
-  pMsg->srcId = pSender->pSyncNode->myRaftId;
-  pMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
-  pMsg->term = raftStoreGetTerm(pSender->pSyncNode);
-  pMsg->beginIndex = pSender->snapshotParam.start;
-  pMsg->lastIndex = pSender->snapshot.lastApplyIndex;
-  pMsg->lastTerm = pSender->snapshot.lastApplyTerm;
-  pMsg->lastConfigIndex = pSender->snapshot.lastConfigIndex;
-  pMsg->lastConfig = pSender->lastConfig;
-  pMsg->startTime = pSender->startTime;
-  pMsg->seq = pSender->seq;
-
-  if (pBlk != NULL && pBlk->pBlock != NULL && pBlk->blockLen > 0) {
-    memcpy(pMsg->data, pBlk->pBlock, pBlk->blockLen);
-  }
-
   // send msg
-  if (syncNodeSendMsgById(&pMsg->destId, pSender->pSyncNode, &rpcMsg) != 0) {
-    sSError(pSender, "snapshot sender send msg failed since %s", terrstr());
+  int32_t blockLen = (pBlk) ? pBlk->blockLen : 0;
+  void   *pBlock = (pBlk) ? pBlk->pBlock : NULL;
+  if (syncSnapSendMsg(pSender, pSender->seq, pBlock, blockLen, 0) != 0) {
     goto _OUT;
   }
 
@@ -336,36 +330,17 @@ int32_t snapshotReSend(SSyncSnapshotSender *pSender) {
     if (nowMs < pBlk->sendTimeMs + SYNC_SNAP_RESEND_MS) {
       continue;
     }
-    // build msg
-    SRpcMsg rpcMsg = {0};
-    if (syncBuildSnapshotSend(&rpcMsg, pBlk->blockLen, pSender->pSyncNode->vgId) != 0) {
-      sSError(pSender, "snapshot sender build msg failed since %s", terrstr());
-      goto _out;
-    }
-
-    SyncSnapshotSend *pMsg = rpcMsg.pCont;
-    pMsg->srcId = pSender->pSyncNode->myRaftId;
-    pMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
-    pMsg->term = pSender->term;
-    pMsg->beginIndex = pSender->snapshotParam.start;
-    pMsg->lastIndex = pSender->snapshot.lastApplyIndex;
-    pMsg->lastTerm = pSender->snapshot.lastApplyTerm;
-    pMsg->lastConfigIndex = pSender->snapshot.lastConfigIndex;
-    pMsg->lastConfig = pSender->lastConfig;
-    pMsg->startTime = pSender->startTime;
-    pMsg->seq = pBlk->seq;
-
-    if (pBlk->pBlock != NULL && pBlk->blockLen > 0) {
-      memcpy(pMsg->data, pBlk->pBlock, pBlk->blockLen);
-    }
-
-    // send msg
-    if (syncNodeSendMsgById(&pMsg->destId, pSender->pSyncNode, &rpcMsg) != 0) {
-      sSError(pSender, "snapshot sender resend msg failed since %s", terrstr());
+    if (syncSnapSendMsg(pSender, pBlk->seq, pBlk->pBlock, pBlk->blockLen, 0) != 0) {
       goto _out;
     }
     pBlk->sendTimeMs = nowMs;
   }
+
+  if (pSender->seq == SYNC_SNAPSHOT_SEQ_END && pSndBuf->end <= pSndBuf->start) {
+    if (syncSnapSendMsg(pSender, pSender->seq, NULL, 0, 0) != 0) {
+      goto _out;
+    }
+  }
   code = 0;
 _out:;
   taosThreadMutexUnlock(&pSndBuf->mutex);
@@ -861,7 +836,7 @@ static int32_t syncSnapSendRsp(SSyncSnapshotReceiver *pReceiver, SyncSnapshotSen
   pRspMsg->lastIndex = pMsg->lastIndex;
   pRspMsg->lastTerm = pMsg->lastTerm;
   pRspMsg->startTime = pMsg->startTime;
-  pRspMsg->ack = pReceiver->ack;  // receiver maybe already closed
+  pRspMsg->ack = pMsg->seq;
   pRspMsg->code = code;
   pRspMsg->snapBeginIndex = pReceiver->snapshotParam.start;
 
@@ -893,13 +868,13 @@ static int32_t syncSnapBufferRecv(SSyncSnapshotReceiver *pReceiver, SyncSnapshot
     pRcvBuf->entries[pMsg->seq % pRcvBuf->size] = pMsg;
     ppMsg[0] = NULL;
     pRcvBuf->end = TMAX(pMsg->seq + 1, pRcvBuf->end);
-  } else {
+  } else if (pMsg->seq < pRcvBuf->start) {
     syncSnapSendRsp(pReceiver, pMsg, code);
     goto _out;
   }
 
   for (int64_t seq = pRcvBuf->cursor + 1; seq < pRcvBuf->end; ++seq) {
-    if (pRcvBuf->entries[seq]) {
+    if (pRcvBuf->entries[seq % pRcvBuf->size]) {
       pRcvBuf->cursor = seq;
     } else {
       break;
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 58022cb8f1..6c964c3da0 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -613,7 +613,8 @@ TAOS_DEFINE_ERROR(TSDB_CODE_FUNC_FUNTION_PARA_TYPE,        "Invalid function par
 TAOS_DEFINE_ERROR(TSDB_CODE_FUNC_FUNTION_PARA_VALUE,       "Invalid function para value")
 TAOS_DEFINE_ERROR(TSDB_CODE_FUNC_NOT_BUILTIN_FUNTION,      "Not buildin function")
 TAOS_DEFINE_ERROR(TSDB_CODE_FUNC_DUP_TIMESTAMP,            "Duplicate timestamps not allowed in function")
-TAOS_DEFINE_ERROR(TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED,      "Func to_timestamp failed, check log for detail")
+TAOS_DEFINE_ERROR(TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED_FORMAT_ERR, "Func to_timestamp failed, format mismatch")
+TAOS_DEFINE_ERROR(TSDB_CODE_FUNC_TO_TIMESTAMP_FAILED_TS_ERR, "Func to_timestamp failed, wrong timestamp")
 
 //udf
 TAOS_DEFINE_ERROR(TSDB_CODE_UDF_STOPPING,                   "udf is stopping")
diff --git a/tests/system-test/2-query/func_to_char_timestamp.py b/tests/system-test/2-query/func_to_char_timestamp.py
index 639811d275..d955e00a82 100644
--- a/tests/system-test/2-query/func_to_char_timestamp.py
+++ b/tests/system-test/2-query/func_to_char_timestamp.py
@@ -166,6 +166,44 @@ class TDTestCase:
     def run(self):
         self.prepareTestEnv()
         self.test_to_timestamp()
+        self.test_ns_to_timestamp()
+
+    def create_tables(self):
+        tdSql.execute("create database if not exists test_us precision 'us'")
+        tdSql.execute("create database if not exists test_ns precision 'ns'")
+        tdSql.execute("use test_us")
+        tdSql.execute(f"CREATE STABLE `meters_us` (`ts` TIMESTAMP, `ip_value` FLOAT, `ip_quality` INT, `ts2` timestamp) TAGS (`t1` INT)")
+        tdSql.execute(f"CREATE TABLE `ctb1_us` USING `meters_us` (`t1`) TAGS (1)")
+        tdSql.execute(f"CREATE TABLE `ctb2_us` USING `meters_us` (`t1`) TAGS (2)")
+        tdSql.execute("use test_ns")
+        tdSql.execute(f"CREATE STABLE `meters_ns` (`ts` TIMESTAMP, `ip_value` FLOAT, `ip_quality` INT, `ts2` timestamp) TAGS (`t1` INT)")
+        tdSql.execute(f"CREATE TABLE `ctb1_ns` USING `meters_ns` (`t1`) TAGS (1)")
+        tdSql.execute(f"CREATE TABLE `ctb2_ns` USING `meters_ns` (`t1`) TAGS (2)")
+
+    def insert_ns_data(self):
+        tdLog.debug("start to insert data ............")
+        tdSql.execute(f"INSERT INTO `test_us`.`ctb1_us` VALUES ('2023-07-01 00:00:00.123456', 10.30000, 100, '2023-07-01 00:00:00.123456')")
+        tdSql.execute(f"INSERT INTO `test_us`.`ctb2_us` VALUES ('2023-08-01 00:00:00.123456', 20.30000, 200, '2023-07-01 00:00:00.123456')")
+        tdSql.execute(f"INSERT INTO `test_ns`.`ctb1_ns` VALUES ('2023-07-01 00:00:00.123456789', 10.30000, 100, '2023-07-01 00:00:00.123456000')")
+        tdSql.execute(f"INSERT INTO `test_ns`.`ctb2_ns` VALUES ('2023-08-01 00:00:00.123456789', 20.30000, 200, '2023-08-01 00:00:00.123456789')")
+        tdLog.debug("insert data ............ [OK]")
+
+    def test_ns_to_timestamp(self):
+        self.create_tables()
+        self.insert_ns_data()
+        tdSql.query("select to_timestamp('2023-08-1 10:10:10.123456789', 'yyyy-mm-dd hh:mi:ss.ns')", queryTimes=1)
+        tdSql.checkData(0, 0, 1690855810123)
+        tdSql.execute('use test_ns', queryTimes=1)
+        tdSql.query("select to_timestamp('2023-08-1 10:10:10.123456789', 'yyyy-mm-dd hh:mi:ss.ns')", queryTimes=1)
+        tdSql.checkData(0, 0, 1690855810123)
+        tdSql.query("select to_char(ts2, 'yyyy-mm-dd hh:mi:ss.ns') from meters_ns", queryTimes=1)
+        tdSql.checkData(0, 0, '2023-07-01 12:00:00.123456000')
+        tdSql.checkData(1, 0, '2023-08-01 12:00:00.123456789')
+
+        tdSql.query("select to_timestamp(to_char(ts2, 'yyyy-mm-dd hh:mi:ss.ns'), 'yyyy-mm-dd hh:mi:ss.ns') from meters_ns", queryTimes=1)
+        tdSql.checkData(0, 0, 1688140800123456000)
+        tdSql.checkData(1, 0, 1690819200123456789)
+
 
     def stop(self):
         tdSql.close()