diff --git a/include/libs/nodes/querynodes.h b/include/libs/nodes/querynodes.h
index f987afd878f4a6e276b8031508bc5a58f92d3c75..6b6d11c2fef7b89ed16cfb5c4aef569a99b76af3 100644
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@@ -124,6 +124,7 @@ typedef struct STableNode {
   char dbName[TSDB_DB_NAME_LEN];
   char tableName[TSDB_TABLE_NAME_LEN];
   char tableAlias[TSDB_TABLE_NAME_LEN];
+  uint8_t precision;
 } STableNode;
 
 struct STableMeta;
@@ -236,6 +237,7 @@ typedef struct SSelectStmt {
   SNode* pLimit;
   SNode* pSlimit;
   char stmtName[TSDB_TABLE_NAME_LEN];
+  uint8_t precision;
 } SSelectStmt;
 
 typedef enum ESetOperatorType {
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index ed90628bda4ee2a0e1c6982e37a0a5c32855c72c..37e05bf3d37c9dfd42d279e0dfa27f348f675dfe 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -483,16 +483,17 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_PAR_INVALID_IDENTIFIER_NAME   TAOS_DEF_ERROR_CODE(0, 0x2617)
 #define TSDB_CODE_PAR_CORRESPONDING_STABLE_ERR  TAOS_DEF_ERROR_CODE(0, 0x2618)
 #define TSDB_CODE_PAR_INVALID_RANGE_OPTION      TAOS_DEF_ERROR_CODE(0, 0x2619)
-#define TSDB_CODE_PAR_INVALID_STR_OPTION        TAOS_DEF_ERROR_CODE(0, 0x2620)
-#define TSDB_CODE_PAR_INVALID_ENUM_OPTION       TAOS_DEF_ERROR_CODE(0, 0x2621)
-#define TSDB_CODE_PAR_INVALID_TTL_OPTION        TAOS_DEF_ERROR_CODE(0, 0x2622)
-#define TSDB_CODE_PAR_INVALID_KEEP_NUM          TAOS_DEF_ERROR_CODE(0, 0x2623)
-#define TSDB_CODE_PAR_INVALID_KEEP_ORDER        TAOS_DEF_ERROR_CODE(0, 0x2624)
-#define TSDB_CODE_PAR_INVALID_KEEP_VALUE        TAOS_DEF_ERROR_CODE(0, 0x2625)
-#define TSDB_CODE_PAR_INVALID_COMMENT_OPTION    TAOS_DEF_ERROR_CODE(0, 0x2626)
-#define TSDB_CODE_PAR_INVALID_F_RANGE_OPTION    TAOS_DEF_ERROR_CODE(0, 0x2627)
-#define TSDB_CODE_PAR_INVALID_ROLLUP_OPTION     TAOS_DEF_ERROR_CODE(0, 0x2628)
-#define TSDB_CODE_PAR_INVALID_RETENTIONS_OPTION TAOS_DEF_ERROR_CODE(0, 0x2629)
+#define TSDB_CODE_PAR_INVALID_STR_OPTION        TAOS_DEF_ERROR_CODE(0, 0x261A)
+#define TSDB_CODE_PAR_INVALID_ENUM_OPTION       TAOS_DEF_ERROR_CODE(0, 0x261B)
+#define TSDB_CODE_PAR_INVALID_TTL_OPTION        TAOS_DEF_ERROR_CODE(0, 0x261C)
+#define TSDB_CODE_PAR_INVALID_KEEP_NUM          TAOS_DEF_ERROR_CODE(0, 0x261D)
+#define TSDB_CODE_PAR_INVALID_KEEP_ORDER        TAOS_DEF_ERROR_CODE(0, 0x261E)
+#define TSDB_CODE_PAR_INVALID_KEEP_VALUE        TAOS_DEF_ERROR_CODE(0, 0x261F)
+#define TSDB_CODE_PAR_INVALID_COMMENT_OPTION    TAOS_DEF_ERROR_CODE(0, 0x2620)
+#define TSDB_CODE_PAR_INVALID_F_RANGE_OPTION    TAOS_DEF_ERROR_CODE(0, 0x2621)
+#define TSDB_CODE_PAR_INVALID_ROLLUP_OPTION     TAOS_DEF_ERROR_CODE(0, 0x2622)
+#define TSDB_CODE_PAR_INVALID_RETENTIONS_OPTION TAOS_DEF_ERROR_CODE(0, 0x2623)
+#define TSDB_CODE_PAR_GROUPBY_WINDOW_COEXIST    TAOS_DEF_ERROR_CODE(0, 0x2624)
 
 //planner
 #define TSDB_CODE_PLAN_INTERNAL_ERROR              TAOS_DEF_ERROR_CODE(0, 0x2700)
diff --git a/source/libs/nodes/src/nodesCodeFuncs.c b/source/libs/nodes/src/nodesCodeFuncs.c
index c3bc696a534cdc84a6dfc0314fd70ab3b59cc6ac..8f90670d13f48656f0a24c3f68300e55063aa5de 100644
--- a/source/libs/nodes/src/nodesCodeFuncs.c
+++ b/source/libs/nodes/src/nodesCodeFuncs.c
@@ -1578,7 +1578,7 @@ static int32_t datumToJson(const void* pObj, SJson* pJson) {
     case TSDB_DATA_TYPE_NULL:
       break;
     case TSDB_DATA_TYPE_BOOL:
-      code = tjsonAddIntegerToObject(pJson, jkValueDatum, pNode->datum.b);
+      code = tjsonAddBoolToObject(pJson, jkValueDatum, pNode->datum.b);
       break;
     case TSDB_DATA_TYPE_TINYINT:
     case TSDB_DATA_TYPE_SMALLINT:
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 3491974eab965968099d9d59ecae2c092d112a5c..88c3d5b5497ca3fe03ad6a44abe0eb33dddf4447 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -376,8 +376,9 @@ static EDealRes translateColumn(STranslateContext* pCxt, SColumnNode* pCol) {
 }
 
 static EDealRes translateValue(STranslateContext* pCxt, SValueNode* pVal) {
+  uint8_t precision = (NULL != pCxt->pCurrStmt ? pCxt->pCurrStmt->precision : pVal->node.resType.precision);
   if (pVal->isDuration) {
-    if (parseNatualDuration(pVal->literal, strlen(pVal->literal), &pVal->datum.i, &pVal->unit, pVal->node.resType.precision) != TSDB_CODE_SUCCESS) {
+    if (parseNatualDuration(pVal->literal, strlen(pVal->literal), &pVal->datum.i, &pVal->unit, precision) != TSDB_CODE_SUCCESS) {
       return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_WRONG_VALUE_TYPE, pVal->literal);
     }
   } else {
@@ -421,7 +422,7 @@ static EDealRes translateValue(STranslateContext* pCxt, SValueNode* pVal) {
         break;
       }
       case TSDB_DATA_TYPE_TIMESTAMP: {
-        if (taosParseTime(pVal->literal, &pVal->datum.i, pVal->node.resType.bytes, pVal->node.resType.precision, tsDaylight) != TSDB_CODE_SUCCESS) {
+        if (taosParseTime(pVal->literal, &pVal->datum.i, pVal->node.resType.bytes, precision, tsDaylight) != TSDB_CODE_SUCCESS) {
           return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_WRONG_VALUE_TYPE, pVal->literal);
         }
         break;
@@ -683,6 +684,19 @@ static int32_t setTableVgroupList(STranslateContext* pCxt, SName* pName, SRealTa
   return code;
 }
 
+static uint8_t getStmtPrecision(SNode* pStmt) {
+  if (QUERY_NODE_SELECT_STMT == nodeType(pStmt)) {
+    return ((SSelectStmt*)pStmt)->precision;
+  }
+  return 0;
+}
+
+static uint8_t getJoinTablePrecision(SJoinTableNode* pJoinTable) {
+  uint8_t lp = ((STableNode*)pJoinTable->pLeft)->precision;
+  uint8_t rp = ((STableNode*)pJoinTable->pRight)->precision;
+  return (lp > rp ? rp : lp);
+}
+
 static int32_t translateTable(STranslateContext* pCxt, SNode* pTable) {
   int32_t code = TSDB_CODE_SUCCESS;
   switch (nodeType(pTable)) {
@@ -695,6 +709,7 @@ static int32_t translateTable(STranslateContext* pCxt, SNode* pTable) {
       if (TSDB_CODE_SUCCESS != code) {
         return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_TABLE_NOT_EXIST, pRealTable->table.tableName);
       }
+      pRealTable->table.precision = pRealTable->pMeta->tableInfo.precision;
       code = setTableVgroupList(pCxt, &name, pRealTable);
       if (TSDB_CODE_SUCCESS == code) {
         code = addNamespace(pCxt, pRealTable);
@@ -705,6 +720,7 @@ static int32_t translateTable(STranslateContext* pCxt, SNode* pTable) {
       STempTableNode* pTempTable = (STempTableNode*)pTable;
       code = translateSubquery(pCxt, pTempTable->pSubquery);
       if (TSDB_CODE_SUCCESS == code) {
+        pTempTable->table.precision = getStmtPrecision(pTempTable->pSubquery);
         code = addNamespace(pCxt, pTempTable);
       }
       break;
@@ -716,6 +732,7 @@ static int32_t translateTable(STranslateContext* pCxt, SNode* pTable) {
         code = translateTable(pCxt, pJoinTable->pRight);
       }
       if (TSDB_CODE_SUCCESS == code) {
+        pJoinTable->table.precision = getJoinTablePrecision(pJoinTable);
         code = translateExpr(pCxt, pJoinTable->pOnCond);
       }
       break;
@@ -852,9 +869,12 @@ static int32_t translateHaving(STranslateContext* pCxt, SSelectStmt* pSelect) {
   return code;
 }
 
-static int32_t translateGroupBy(STranslateContext* pCxt, SNodeList* pGroupByList) {
+static int32_t translateGroupBy(STranslateContext* pCxt, SSelectStmt* pSelect) {
+  if (NULL != pSelect->pGroupByList && NULL != pSelect->pWindow) {
+    return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_GROUPBY_WINDOW_COEXIST);
+  }
   pCxt->currClause = SQL_CLAUSE_GROUP_BY;
-  return translateExprList(pCxt, pGroupByList);
+  return translateExprList(pCxt, pSelect->pGroupByList);
 }
 
 static int32_t translateIntervalWindow(STranslateContext* pCxt, SIntervalWindowNode* pInterval) {
@@ -899,14 +919,18 @@ static int32_t translateWhere(STranslateContext* pCxt, SNode* pWhere) {
   return translateExpr(pCxt, pWhere);
 }
 
-static int32_t translateFrom(STranslateContext* pCxt, SNode* pTable) {
+static int32_t translateFrom(STranslateContext* pCxt, SSelectStmt* pSelect) {
   pCxt->currClause = SQL_CLAUSE_FROM;
-  return translateTable(pCxt, pTable);
+  int32_t code =  translateTable(pCxt, pSelect->pFromTable);
+  if (TSDB_CODE_SUCCESS == code) {
+    pSelect->precision = ((STableNode*)pSelect->pFromTable)->precision;
+  }
+  return code;
 }
 
 static int32_t translateSelect(STranslateContext* pCxt, SSelectStmt* pSelect) {
   pCxt->pCurrStmt = pSelect;
-  int32_t code = translateFrom(pCxt, pSelect->pFromTable);
+  int32_t code = translateFrom(pCxt, pSelect);
   if (TSDB_CODE_SUCCESS == code) {
     code = translateWhere(pCxt, pSelect->pWhere);
   }
@@ -917,7 +941,7 @@ static int32_t translateSelect(STranslateContext* pCxt, SSelectStmt* pSelect) {
     code = translateWindow(pCxt, pSelect->pWindow);
   }
   if (TSDB_CODE_SUCCESS == code) {
-    code = translateGroupBy(pCxt, pSelect->pGroupByList);
+    code = translateGroupBy(pCxt, pSelect);
   }
   if (TSDB_CODE_SUCCESS == code) {
     code = translateHaving(pCxt, pSelect);
diff --git a/source/libs/parser/src/parUtil.c b/source/libs/parser/src/parUtil.c
index 5206e0f8a52ca410b991dcaf2f7894fc163d5616..171324aa99680b2daa6456af8e66a0204d405aeb 100644
--- a/source/libs/parser/src/parUtil.c
+++ b/source/libs/parser/src/parUtil.c
@@ -89,6 +89,8 @@ static char* getSyntaxErrFormat(int32_t errCode) {
       return "invalid option rollup: only one function is allowed";
     case TSDB_CODE_PAR_INVALID_RETENTIONS_OPTION:
       return "invalid option retentions";
+    case TSDB_CODE_PAR_GROUPBY_WINDOW_COEXIST:
+      return "GROUP BY and WINDOW-clause can't be used together";
     case TSDB_CODE_OUT_OF_MEMORY:
       return "Out of memory";
     default: