feat: support pseudo columns such as _qstart, _qend and _qduration

examples/c/stream_demo.c

@@ -98,10 +98,10 @@ int32_t create_stream() {
   /*const char* sql = "select min(k), max(k), sum(k) as sum_of_k from st1";*/
   /*const char* sql = "select sum(k) from tu1 interval(10m)";*/
   /*pRes = tmq_create_stream(pConn, "stream1", "out1", sql);*/
-  pRes = taos_query(
-      pConn,
-      "create stream stream1 trigger max_delay 10s into outstb as select _wstartts, sum(k) from st1 partition "
-      "by tbname session(ts, 10s) ");
+  pRes =
+      taos_query(pConn,
+                 "create stream stream1 trigger max_delay 10s into outstb as select _wstart, sum(k) from st1 partition "
+                 "by tbname session(ts, 10s) ");
   if (taos_errno(pRes) != 0) {
     printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes));
     return -1;

include/common/ttokendef.h

@@ -213,63 +213,64 @@
 #define TK_NK_ARROW       195
 #define TK_ROWTS          196
 #define TK_TBNAME         197
-#define TK_QSTARTTS       198
-#define TK_QENDTS         199
-#define TK_WSTARTTS       200
-#define TK_WENDTS         201
-#define TK_WDURATION      202
-#define TK_CAST           203
-#define TK_NOW            204
-#define TK_TODAY          205
-#define TK_TIMEZONE       206
-#define TK_CLIENT_VERSION 207
-#define TK_SERVER_VERSION 208
-#define TK_SERVER_STATUS  209
-#define TK_CURRENT_USER   210
-#define TK_COUNT          211
-#define TK_LAST_ROW       212
-#define TK_BETWEEN        213
-#define TK_IS             214
-#define TK_NK_LT          215
-#define TK_NK_GT          216
-#define TK_NK_LE          217
-#define TK_NK_GE          218
-#define TK_NK_NE          219
-#define TK_MATCH          220
-#define TK_NMATCH         221
-#define TK_CONTAINS       222
-#define TK_JOIN           223
-#define TK_INNER          224
-#define TK_SELECT         225
-#define TK_DISTINCT       226
-#define TK_WHERE          227
-#define TK_PARTITION      228
-#define TK_BY             229
-#define TK_SESSION        230
-#define TK_STATE_WINDOW   231
-#define TK_SLIDING        232
-#define TK_FILL           233
-#define TK_VALUE          234
-#define TK_NONE           235
-#define TK_PREV           236
-#define TK_LINEAR         237
-#define TK_NEXT           238
-#define TK_HAVING         239
-#define TK_RANGE          240
-#define TK_EVERY          241
-#define TK_ORDER          242
-#define TK_SLIMIT         243
-#define TK_SOFFSET        244
-#define TK_LIMIT          245
-#define TK_OFFSET         246
-#define TK_ASC            247
-#define TK_NULLS          248
-#define TK_ID             249
-#define TK_NK_BITNOT      250
-#define TK_VALUES         251
-#define TK_IMPORT         252
-#define TK_NK_SEMI        253
-#define TK_FILE           254
+#define TK_QSTART         198
+#define TK_QEND           199
+#define TK_QDURATION      200
+#define TK_WSTART         201
+#define TK_WEND           202
+#define TK_WDURATION      203
+#define TK_CAST           204
+#define TK_NOW            205
+#define TK_TODAY          206
+#define TK_TIMEZONE       207
+#define TK_CLIENT_VERSION 208
+#define TK_SERVER_VERSION 209
+#define TK_SERVER_STATUS  210
+#define TK_CURRENT_USER   211
+#define TK_COUNT          212
+#define TK_LAST_ROW       213
+#define TK_BETWEEN        214
+#define TK_IS             215
+#define TK_NK_LT          216
+#define TK_NK_GT          217
+#define TK_NK_LE          218
+#define TK_NK_GE          219
+#define TK_NK_NE          220
+#define TK_MATCH          221
+#define TK_NMATCH         222
+#define TK_CONTAINS       223
+#define TK_JOIN           224
+#define TK_INNER          225
+#define TK_SELECT         226
+#define TK_DISTINCT       227
+#define TK_WHERE          228
+#define TK_PARTITION      229
+#define TK_BY             230
+#define TK_SESSION        231
+#define TK_STATE_WINDOW   232
+#define TK_SLIDING        233
+#define TK_FILL           234
+#define TK_VALUE          235
+#define TK_NONE           236
+#define TK_PREV           237
+#define TK_LINEAR         238
+#define TK_NEXT           239
+#define TK_HAVING         240
+#define TK_RANGE          241
+#define TK_EVERY          242
+#define TK_ORDER          243
+#define TK_SLIMIT         244
+#define TK_SOFFSET        245
+#define TK_LIMIT          246
+#define TK_OFFSET         247
+#define TK_ASC            248
+#define TK_NULLS          249
+#define TK_ID             250
+#define TK_NK_BITNOT      251
+#define TK_VALUES         252
+#define TK_IMPORT         253
+#define TK_NK_SEMI        254
+#define TK_FILE           255
 
 #define TK_NK_SPACE   300
 #define TK_NK_COMMENT 301

include/libs/function/functionMgt.h

@@ -34,7 +34,7 @@ typedef enum EFunctionType {
   FUNCTION_TYPE_ELAPSED,
   FUNCTION_TYPE_IRATE,
   FUNCTION_TYPE_LAST_ROW,
-  FUNCTION_TYPE_LAST_ROWT, //TODO: removed
+  FUNCTION_TYPE_LAST_ROWT,  // TODO: removed
   FUNCTION_TYPE_MAX,
   FUNCTION_TYPE_MIN,
   FUNCTION_TYPE_MODE,
@@ -114,10 +114,11 @@ typedef enum EFunctionType {
   // pseudo column function
   FUNCTION_TYPE_ROWTS = 3500,
   FUNCTION_TYPE_TBNAME,
-  FUNCTION_TYPE_QSTARTTS,
-  FUNCTION_TYPE_QENDTS,
-  FUNCTION_TYPE_WSTARTTS,
-  FUNCTION_TYPE_WENDTS,
+  FUNCTION_TYPE_QSTART,
+  FUNCTION_TYPE_QEND,
+  FUNCTION_TYPE_QDURATION,
+  FUNCTION_TYPE_WSTART,
+  FUNCTION_TYPE_WEND,
   FUNCTION_TYPE_WDURATION,
 
   // internal function

include/libs/nodes/querynodes.h

@@ -228,7 +228,7 @@ typedef struct SFillNode {
   ENodeType   type;  // QUERY_NODE_FILL
   EFillMode   mode;
   SNode*      pValues;    // SNodeListNode
-  SNode*      pWStartTs;  // _wstartts pseudo column
+  SNode*      pWStartTs;  // _wstart pseudo column
   STimeWindow timeRange;
 } SFillNode;
 

source/libs/executor/src/executorimpl.c

@@ -1479,8 +1479,8 @@ int32_t finalizeResultRowIntoResultDataBlock(SDiskbasedBuf* pBuf, SResultRowPosi
     } else if (strcmp(pCtx[j].pExpr->pExpr->_function.functionName, "_select_value") == 0) {
       // do nothing, todo refactor
     } else {
-      // expand the result into multiple rows. E.g., _wstartts, top(k, 20)
-      // the _wstartts needs to copy to 20 following rows, since the results of top-k expands to 20 different rows.
+      // expand the result into multiple rows. E.g., _wstart, top(k, 20)
+      // the _wstart needs to copy to 20 following rows, since the results of top-k expands to 20 different rows.
       SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, slotId);
       char*            in = GET_ROWCELL_INTERBUF(pCtx[j].resultInfo);
       for (int32_t k = 0; k < pRow->numOfRows; ++k) {
@@ -1551,8 +1551,8 @@ int32_t doCopyToSDataBlock(SExecTaskInfo* pTaskInfo, SSDataBlock* pBlock, SExprI
       } else if (strcmp(pCtx[j].pExpr->pExpr->_function.functionName, "_select_value") == 0) {
         // do nothing, todo refactor
       } else {
-        // expand the result into multiple rows. E.g., _wstartts, top(k, 20)
-        // the _wstartts needs to copy to 20 following rows, since the results of top-k expands to 20 different rows.
+        // expand the result into multiple rows. E.g., _wstart, top(k, 20)
+        // the _wstart needs to copy to 20 following rows, since the results of top-k expands to 20 different rows.
         SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, slotId);
         char*            in = GET_ROWCELL_INTERBUF(pCtx[j].resultInfo);
         if (pCtx[j].increase) {

source/libs/executor/src/timewindowoperator.c

@@ -1579,7 +1579,7 @@ static bool timeWindowinterpNeeded(SqlFunctionCtx* pCtx, int32_t numOfCols, SInt
 }
 
 void increaseTs(SqlFunctionCtx* pCtx) {
-  if (pCtx[0].pExpr->pExpr->_function.pFunctNode->funcType == FUNCTION_TYPE_WSTARTTS) {
+  if (pCtx[0].pExpr->pExpr->_function.pFunctNode->funcType == FUNCTION_TYPE_WSTART) {
     pCtx[0].increase = true;
   }
 }
@@ -2491,8 +2491,8 @@ static void doHashInterval(SOperatorInfo* pOperatorInfo, SSDataBlock* pSDataBloc
     if (IS_FINAL_OP(pInfo)) {
       forwardRows = 1;
     } else {
-      forwardRows = getNumOfRowsInTimeWindow(&pSDataBlock->info, tsCols, startPos, nextWin.ekey, binarySearchForKey, NULL,
-                                           TSDB_ORDER_ASC);
+      forwardRows = getNumOfRowsInTimeWindow(&pSDataBlock->info, tsCols, startPos, nextWin.ekey, binarySearchForKey,
+                                             NULL, TSDB_ORDER_ASC);
     }
     if (pInfo->twAggSup.calTrigger == STREAM_TRIGGER_AT_ONCE && pUpdated) {
       saveResultRow(pResult, tableGroupId, pUpdated);

source/libs/function/src/builtins.c

@@ -2784,28 +2784,38 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .finalizeFunc = NULL
   },
   {
-    .name = "_qstartts",
-    .type = FUNCTION_TYPE_QSTARTTS,
-    .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
+    .name = "_qstart",
+    .type = FUNCTION_TYPE_QSTART,
+    .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_SCAN_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
-    .sprocessFunc = qStartTsFunction,
+    .sprocessFunc = qStartTsFunction, // todo
     .finalizeFunc = NULL
   },
   {
-    .name = "_qendts",
-    .type = FUNCTION_TYPE_QENDTS,
-    .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
+    .name = "_qend",
+    .type = FUNCTION_TYPE_QEND,
+    .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_SCAN_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
-    .sprocessFunc = qEndTsFunction,
+    .sprocessFunc = qEndTsFunction, // todo
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "_qduration",
+    .type = FUNCTION_TYPE_QDURATION,
+    .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_SCAN_PC_FUNC,
+    .translateFunc = translateWduration,
+    .getEnvFunc   = getTimePseudoFuncEnv,
+    .initFunc     = NULL,
+    .sprocessFunc = winDurFunction, // todo
     .finalizeFunc = NULL
   },
   {
-    .name = "_wstartts",
-    .type = FUNCTION_TYPE_WSTARTTS,
+    .name = "_wstart",
+    .type = FUNCTION_TYPE_WSTART,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
@@ -2814,8 +2824,8 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .finalizeFunc = NULL
   },
   {
-    .name = "_wendts",
-    .type = FUNCTION_TYPE_WENDTS,
+    .name = "_wend",
+    .type = FUNCTION_TYPE_WEND,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,

source/libs/function/src/functionMgt.c

@@ -227,8 +227,8 @@ bool fmIsInvertible(int32_t funcId) {
     case FUNCTION_TYPE_SUM:
     case FUNCTION_TYPE_STDDEV:
     case FUNCTION_TYPE_AVG:
-    case FUNCTION_TYPE_WSTARTTS:
-    case FUNCTION_TYPE_WENDTS:
+    case FUNCTION_TYPE_WSTART:
+    case FUNCTION_TYPE_WEND:
     case FUNCTION_TYPE_WDURATION:
       res = true;
       break;

source/libs/nodes/src/nodesUtilFuncs.c

@@ -956,7 +956,6 @@ void nodesDestroyNode(SNode* pNode) {
     }
     case QUERY_NODE_PHYSICAL_SUBPLAN: {
       SSubplan* pSubplan = (SSubplan*)pNode;
-      // nodesDestroyList(pSubplan->pChildren);
       nodesClearList(pSubplan->pChildren);
       nodesDestroyNode((SNode*)pSubplan->pNode);
       nodesDestroyNode((SNode*)pSubplan->pDataSink);
@@ -965,25 +964,9 @@ void nodesDestroyNode(SNode* pNode) {
       nodesClearList(pSubplan->pParents);
       break;
     }
-    case QUERY_NODE_PHYSICAL_PLAN: {
-      SQueryPlan* pPlan = (SQueryPlan*)pNode;
-      if (NULL != pPlan->pSubplans) {
-        // only need to destroy the top-level subplans, because they will recurse to all the subplans below
-        bool   first = true;
-        SNode* pElement = NULL;
-        FOREACH(pElement, pPlan->pSubplans) {
-          if (first) {
-            // first = false;
-            nodesDestroyNode(pElement);
-          } else {
-            nodesClearList(((SNodeListNode*)pElement)->pNodeList);
-            taosMemoryFreeClear(pElement);
-          }
-        }
-        nodesClearList(pPlan->pSubplans);
-      }
+    case QUERY_NODE_PHYSICAL_PLAN:
+      nodesDestroyList(((SQueryPlan*)pNode)->pSubplans);
       break;
-    }
     default:
       break;
   }

source/libs/parser/inc/sql.y

@@ -520,7 +520,9 @@ cmd ::= DELETE FROM full_table_name(A) where_clause_opt(B).
 cmd ::= query_expression(A).                                                      { pCxt->pRootNode = A; }
 
 /************************************************ insert **************************************************************/
-cmd ::= INSERT INTO full_table_name(A) specific_cols_opt(B) query_expression(C).  { pCxt->pRootNode = createInsertStmt(pCxt, A, B, C); }
+cmd ::= INSERT INTO full_table_name(A) 
+  NK_LP col_name_list(B) NK_RP query_expression(C).                               { pCxt->pRootNode = createInsertStmt(pCxt, A, B, C); }
+cmd ::= INSERT INTO full_table_name(A) query_expression(B).                       { pCxt->pRootNode = createInsertStmt(pCxt, A, NULL, B); }
 
 /************************************************ literal *************************************************************/
 literal(A) ::= NK_INTEGER(B).                                                     { A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_BIGINT, &B)); }
@@ -675,10 +677,11 @@ column_reference(A) ::= table_name(B) NK_DOT column_name(C).
 pseudo_column(A) ::= ROWTS(B).                                                    { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
 pseudo_column(A) ::= TBNAME(B).                                                   { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
 pseudo_column(A) ::= table_name(B) NK_DOT TBNAME(C).                              { A = createRawExprNodeExt(pCxt, &B, &C, createFunctionNode(pCxt, &C, createNodeList(pCxt, createValueNode(pCxt, TSDB_DATA_TYPE_BINARY, &B)))); }
-pseudo_column(A) ::= QSTARTTS(B).                                                 { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
-pseudo_column(A) ::= QENDTS(B).                                                   { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
-pseudo_column(A) ::= WSTARTTS(B).                                                 { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
-pseudo_column(A) ::= WENDTS(B).                                                   { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
+pseudo_column(A) ::= QSTART(B).                                                   { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
+pseudo_column(A) ::= QEND(B).                                                     { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
+pseudo_column(A) ::= QDURATION(B).                                                { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
+pseudo_column(A) ::= WSTART(B).                                                   { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
+pseudo_column(A) ::= WEND(B).                                                     { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
 pseudo_column(A) ::= WDURATION(B).                                                { A = createRawExprNode(pCxt, &B, createFunctionNode(pCxt, &B, NULL)); }
 
 function_expression(A) ::= function_name(B) NK_LP expression_list(C) NK_RP(D).    { A = createRawExprNodeExt(pCxt, &B, &D, createFunctionNode(pCxt, &B, C)); }

source/libs/parser/src/parAstCreater.c

@@ -598,7 +598,7 @@ SNode* createFillNode(SAstCreateContext* pCxt, EFillMode mode, SNode* pValues) {
     nodesDestroyNode((SNode*)fill);
     CHECK_OUT_OF_MEM(fill->pWStartTs);
   }
-  strcpy(((SFunctionNode*)fill->pWStartTs)->functionName, "_wstartts");
+  strcpy(((SFunctionNode*)fill->pWStartTs)->functionName, "_wstart");
   return (SNode*)fill;
 }
 

source/libs/parser/src/parTokenizer.c

@@ -240,12 +240,13 @@ static SKeyword keywordTable[] = {
     {"WITH",           TK_WITH},
     {"WRITE",          TK_WRITE},
     {"_C0",            TK_ROWTS},
-    {"_QENDTS",        TK_QENDTS},
-    {"_QSTARTTS",      TK_QSTARTTS},
+    {"_QDURATION",     TK_QDURATION},
+    {"_QEND",          TK_QEND},
+    {"_QSTART",        TK_QSTART},
     {"_ROWTS",         TK_ROWTS},
     {"_WDURATION",     TK_WDURATION},
-    {"_WENDTS",        TK_WENDTS},
-    {"_WSTARTTS",      TK_WSTARTTS},
+    {"_WEND",          TK_WEND},
+    {"_WSTART",        TK_WSTART},
     // {"ID",           TK_ID},
     // {"STRING",       TK_STRING},
     // {"EQ",           TK_EQ},

source/libs/parser/src/parTranslater.c

@@ -496,7 +496,7 @@ static bool isPrimaryKeyImpl(SNode* pExpr) {
     SFunctionNode* pFunc = (SFunctionNode*)pExpr;
     if (FUNCTION_TYPE_SELECT_VALUE == pFunc->funcType) {
       return isPrimaryKeyImpl(nodesListGetNode(pFunc->pParameterList, 0));
-    } else if (FUNCTION_TYPE_WSTARTTS == pFunc->funcType || FUNCTION_TYPE_WENDTS == pFunc->funcType) {
+    } else if (FUNCTION_TYPE_WSTART == pFunc->funcType || FUNCTION_TYPE_WEND == pFunc->funcType) {
       return true;
     }
   }
@@ -3508,7 +3508,7 @@ static int32_t buildSampleAst(STranslateContext* pCxt, SSampleAstInfo* pInfo, ch
     nodesDestroyNode((SNode*)pSelect);
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  strcpy(pFunc->functionName, "_wstartts");
+  strcpy(pFunc->functionName, "_wstart");
   nodesListPushFront(pSelect->pProjectionList, (SNode*)pFunc);
   SNode* pProject = NULL;
   FOREACH(pProject, pSelect->pProjectionList) { sprintf(((SExprNode*)pProject)->aliasName, "#%p", pProject); }
@@ -4334,14 +4334,14 @@ static int32_t addWstartTsToCreateStreamQuery(SNode* pStmt) {
   SSelectStmt* pSelect = (SSelectStmt*)pStmt;
   SNode*       pProj = nodesListGetNode(pSelect->pProjectionList, 0);
   if (NULL == pSelect->pWindow ||
-      (QUERY_NODE_FUNCTION == nodeType(pProj) && 0 == strcmp("_wstartts", ((SFunctionNode*)pProj)->functionName))) {
+      (QUERY_NODE_FUNCTION == nodeType(pProj) && 0 == strcmp("_wstart", ((SFunctionNode*)pProj)->functionName))) {
     return TSDB_CODE_SUCCESS;
   }
   SFunctionNode* pFunc = (SFunctionNode*)nodesMakeNode(QUERY_NODE_FUNCTION);
   if (NULL == pFunc) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  strcpy(pFunc->functionName, "_wstartts");
+  strcpy(pFunc->functionName, "_wstart");
   strcpy(pFunc->node.aliasName, pFunc->functionName);
   int32_t code = nodesListPushFront(pSelect->pProjectionList, (SNode*)pFunc);
   if (TSDB_CODE_SUCCESS != code) {

source/libs/parser/src/parUtil.c

@@ -187,7 +187,7 @@ static char* getSyntaxErrFormat(int32_t errCode) {
     case TSDB_CODE_PAR_FILL_NOT_ALLOWED_FUNC:
       return "%s function is not supported in fill query";
     case TSDB_CODE_PAR_INVALID_WINDOW_PC:
-      return "_WSTARTTS, _WENDTS and _WDURATION can only be used in window query";
+      return "_WSTART, _WEND and _WDURATION can only be used in window query";
     case TSDB_CODE_PAR_WINDOW_NOT_ALLOWED_FUNC:
       return "%s function is not supported in time window query";
     case TSDB_CODE_PAR_STREAM_NOT_ALLOWED_FUNC:

source/libs/parser/test/parSelectTest.cpp

@@ -75,7 +75,7 @@ TEST_F(ParserSelectTest, condition) {
 TEST_F(ParserSelectTest, pseudoColumn) {
   useDb("root", "test");
 
-  run("SELECT _WSTARTTS, _WENDTS, COUNT(*) FROM t1 INTERVAL(10s)");
+  run("SELECT _WSTART, _WEND, COUNT(*) FROM t1 INTERVAL(10s)");
 }
 
 TEST_F(ParserSelectTest, pseudoColumnSemanticCheck) {
@@ -286,7 +286,7 @@ TEST_F(ParserSelectTest, intervalSemanticCheck) {
   run("SELECT HISTOGRAM(c1, 'log_bin', '{\"start\": -33,\"factor\": 55,\"count\": 5,\"infinity\": false}', 1) FROM t1 "
       "WHERE ts > TIMESTAMP '2022-04-01 00:00:00' and ts < TIMESTAMP '2022-04-30 23:59:59' INTERVAL(10s) FILL(NULL)",
       TSDB_CODE_PAR_FILL_NOT_ALLOWED_FUNC);
-  run("SELECT _WSTARTTS, _WENDTS, _WDURATION, sum(c1) FROM t1", TSDB_CODE_PAR_INVALID_WINDOW_PC);
+  run("SELECT _WSTART, _WEND, _WDURATION, sum(c1) FROM t1", TSDB_CODE_PAR_INVALID_WINDOW_PC);
 }
 
 TEST_F(ParserSelectTest, interp) {
@@ -310,11 +310,11 @@ TEST_F(ParserSelectTest, subquery) {
 
   run("SELECT SUM(a) FROM (SELECT MAX(c1) a, ts FROM st1s1 INTERVAL(1m)) INTERVAL(1n)");
 
-  run("SELECT SUM(a) FROM (SELECT MAX(c1) a, _wstartts FROM st1s1 INTERVAL(1m)) INTERVAL(1n)");
+  run("SELECT SUM(a) FROM (SELECT MAX(c1) a, _wstart FROM st1s1 INTERVAL(1m)) INTERVAL(1n)");
 
   run("SELECT SUM(a) FROM (SELECT MAX(c1) a, ts FROM st1s1 PARTITION BY TBNAME INTERVAL(1m)) INTERVAL(1n)");
 
-  run("SELECT SUM(a) FROM (SELECT MAX(c1) a, _wstartts FROM st1s1 PARTITION BY TBNAME INTERVAL(1m)) INTERVAL(1n)");
+  run("SELECT SUM(a) FROM (SELECT MAX(c1) a, _wstart FROM st1s1 PARTITION BY TBNAME INTERVAL(1m)) INTERVAL(1n)");
 
   run("SELECT _C0 FROM (SELECT _ROWTS, ts FROM st1s1)");
 

source/libs/planner/src/planLogicCreater.c

@@ -59,7 +59,7 @@ static EDealRes doRewriteExpr(SNode** pNode, void* pContext) {
           strcpy(pCol->node.aliasName, pToBeRewrittenExpr->aliasName);
           strcpy(pCol->colName, ((SExprNode*)pExpr)->aliasName);
           if (QUERY_NODE_FUNCTION == nodeType(pExpr)) {
-            if (FUNCTION_TYPE_WSTARTTS == ((SFunctionNode*)pExpr)->funcType) {
+            if (FUNCTION_TYPE_WSTART == ((SFunctionNode*)pExpr)->funcType) {
               pCol->colId = PRIMARYKEY_TIMESTAMP_COL_ID;
             } else if (FUNCTION_TYPE_TBNAME == ((SFunctionNode*)pExpr)->funcType) {
               pCol->colType = COLUMN_TYPE_TBNAME;

source/libs/planner/src/planOptimizer.c

@@ -792,15 +792,15 @@ static EDealRes rewriteAggGroupKeyCondForPushDownImpl(SNode** pNode, void* pCont
         if (0 == strcmp(((SExprNode*)pGroup)->aliasName, ((SColumnNode*)(*pNode))->colName)) {
           SNode* pExpr = nodesCloneNode(pGroup);
           if (pExpr == NULL) {
-            pCxt->errCode = terrno;
+            pCxt->errCode = TSDB_CODE_OUT_OF_MEMORY;
             return DEAL_RES_ERROR;
           }
           nodesDestroyNode(*pNode);
           *pNode = pExpr;
+          return DEAL_RES_IGNORE_CHILD;
         }
       }
     }
-    return DEAL_RES_IGNORE_CHILD;
   }
   return DEAL_RES_CONTINUE;
 }
@@ -861,16 +861,16 @@ static EDealRes rewriteProjectCondForPushDownImpl(SNode** ppNode, void* pContext
           if (0 == strcmp(((SExprNode*)pProjection)->aliasName, ((SColumnNode*)(*ppNode))->colName)) {
             SNode* pExpr = nodesCloneNode(pProjection);
             if (pExpr == NULL) {
-              pCxt->errCode = terrno;
+              pCxt->errCode = TSDB_CODE_OUT_OF_MEMORY;
               return DEAL_RES_ERROR;
             }
             nodesDestroyNode(*ppNode);
             *ppNode = pExpr;
+            return DEAL_RES_IGNORE_CHILD;
           }  // end if expr alias name equal column name
         }    // end for each project
       }      // end if target node equals cond column node
     }        // end for each targets
-    return DEAL_RES_IGNORE_CHILD;
   }
   return DEAL_RES_CONTINUE;
 }
@@ -1208,7 +1208,7 @@ static int32_t smaIndexOptCreateSmaCols(SNodeList* pFuncs, uint64_t tableId, SNo
   int32_t    smaFuncIndex = -1;
   *pWStrartIndex = -1;
   FOREACH(pFunc, pFuncs) {
-    if (FUNCTION_TYPE_WSTARTTS == ((SFunctionNode*)pFunc)->funcType) {
+    if (FUNCTION_TYPE_WSTART == ((SFunctionNode*)pFunc)->funcType) {
       *pWStrartIndex = index;
     }
     smaFuncIndex = smaIndexOptFindSmaFunc(pFunc, pSmaFuncs);
@@ -1252,7 +1252,7 @@ static SNode* smaIndexOptCreateWStartTs() {
   if (NULL == pWStart) {
     return NULL;
   }
-  strcpy(pWStart->functionName, "_wstartts");
+  strcpy(pWStart->functionName, "_wstart");
   snprintf(pWStart->node.aliasName, sizeof(pWStart->node.aliasName), "%s.%p", pWStart->functionName, pWStart);
   if (TSDB_CODE_SUCCESS != fmGetFuncInfo(pWStart, NULL, 0)) {
     nodesDestroyNode((SNode*)pWStart);
@@ -2100,11 +2100,12 @@ static bool tagScanMayBeOptimized(SLogicNode* pNode) {
   if (QUERY_NODE_LOGIC_PLAN_SCAN != nodeType(pNode) || (SCAN_TYPE_TAG == ((SScanLogicNode*)pNode)->scanType)) {
     return false;
   }
-  SScanLogicNode *pScan = (SScanLogicNode*)pNode;
+  SScanLogicNode* pScan = (SScanLogicNode*)pNode;
   if (NULL != pScan->pScanCols) {
     return false;
   }
-  if (NULL == pNode->pParent || QUERY_NODE_LOGIC_PLAN_AGG != nodeType(pNode->pParent) || 1 != LIST_LENGTH(pNode->pParent->pChildren)) {
+  if (NULL == pNode->pParent || QUERY_NODE_LOGIC_PLAN_AGG != nodeType(pNode->pParent) ||
+      1 != LIST_LENGTH(pNode->pParent->pChildren)) {
     return false;
   }
 

source/libs/planner/src/planSpliter.c

@@ -308,7 +308,7 @@ static int32_t stbSplAppendWStart(SNodeList* pFuncs, int32_t* pIndex) {
   int32_t index = 0;
   SNode*  pFunc = NULL;
   FOREACH(pFunc, pFuncs) {
-    if (FUNCTION_TYPE_WSTARTTS == ((SFunctionNode*)pFunc)->funcType) {
+    if (FUNCTION_TYPE_WSTART == ((SFunctionNode*)pFunc)->funcType) {
       *pIndex = index;
       return TSDB_CODE_SUCCESS;
     }
@@ -319,7 +319,7 @@ static int32_t stbSplAppendWStart(SNodeList* pFuncs, int32_t* pIndex) {
   if (NULL == pWStart) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  strcpy(pWStart->functionName, "_wstartts");
+  strcpy(pWStart->functionName, "_wstart");
   snprintf(pWStart->node.aliasName, sizeof(pWStart->node.aliasName), "%s.%p", pWStart->functionName, pWStart);
   int32_t code = fmGetFuncInfo(pWStart, NULL, 0);
   if (TSDB_CODE_SUCCESS == code) {
@@ -333,7 +333,7 @@ static int32_t stbSplAppendWEnd(SWindowLogicNode* pWin, int32_t* pIndex) {
   int32_t index = 0;
   SNode*  pFunc = NULL;
   FOREACH(pFunc, pWin->pFuncs) {
-    if (FUNCTION_TYPE_WENDTS == ((SFunctionNode*)pFunc)->funcType) {
+    if (FUNCTION_TYPE_WEND == ((SFunctionNode*)pFunc)->funcType) {
       *pIndex = index;
       return TSDB_CODE_SUCCESS;
     }
@@ -344,7 +344,7 @@ static int32_t stbSplAppendWEnd(SWindowLogicNode* pWin, int32_t* pIndex) {
   if (NULL == pWEnd) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
-  strcpy(pWEnd->functionName, "_wendts");
+  strcpy(pWEnd->functionName, "_wend");
   snprintf(pWEnd->node.aliasName, sizeof(pWEnd->node.aliasName), "%s.%p", pWEnd->functionName, pWEnd);
   int32_t code = fmGetFuncInfo(pWEnd, NULL, 0);
   if (TSDB_CODE_SUCCESS == code) {

source/libs/planner/test/planBasicTest.cpp

@@ -137,6 +137,12 @@ TEST_F(PlanBasicTest, sampleFunc) {
   run("SELECT SAMPLE(c1, 10) FROM st1 PARTITION BY TBNAME");
 }
 
+TEST_F(PlanBasicTest, pseudoColumn) {
+  useDb("root", "test");
+
+  run("SELECT _QSTART, _QEND, _QDURATION FROM t1");
+}
+
 TEST_F(PlanBasicTest, withoutFrom) {
   useDb("root", "test");
 

source/libs/planner/test/planIntervalTest.cpp

@@ -29,7 +29,7 @@ TEST_F(PlanIntervalTest, basic) {
 TEST_F(PlanIntervalTest, pseudoCol) {
   useDb("root", "test");
 
-  run("SELECT _WSTARTTS, _WDURATION, _WENDTS, COUNT(*) FROM t1 INTERVAL(10s)");
+  run("SELECT _WSTART, _WDURATION, _WEND, COUNT(*) FROM t1 INTERVAL(10s)");
 }
 
 TEST_F(PlanIntervalTest, fill) {
@@ -59,9 +59,9 @@ TEST_F(PlanIntervalTest, stable) {
 
   run("SELECT COUNT(*) FROM st1 INTERVAL(10s)");
 
-  run("SELECT _WSTARTTS, COUNT(*) FROM st1 INTERVAL(10s)");
+  run("SELECT _WSTART, COUNT(*) FROM st1 INTERVAL(10s)");
 
-  run("SELECT _WSTARTTS, COUNT(*) FROM st1 PARTITION BY TBNAME INTERVAL(10s)");
+  run("SELECT _WSTART, COUNT(*) FROM st1 PARTITION BY TBNAME INTERVAL(10s)");
 
   run("SELECT TBNAME, COUNT(*) FROM st1 PARTITION BY TBNAME INTERVAL(10s)");
 }

source/libs/planner/test/planOptimizeTest.cpp

@@ -55,7 +55,7 @@ TEST_F(PlanOptimizeTest, sortPrimaryKey) {
 
   run("SELECT c1 FROM t1 ORDER BY ts DESC");
 
-  run("SELECT COUNT(*) FROM t1 INTERVAL(10S) ORDER BY _WSTARTTS DESC");
+  run("SELECT COUNT(*) FROM t1 INTERVAL(10S) ORDER BY _WSTART DESC");
 }
 
 TEST_F(PlanOptimizeTest, PartitionTags) {

source/libs/planner/test/planOtherTest.cpp

@@ -49,7 +49,7 @@ TEST_F(PlanOtherTest, createSmaIndex) {
 
   run("SELECT SUM(c4) FROM t1 INTERVAL(10s)");
 
-  run("SELECT _WSTARTTS, MIN(c3 + 10) FROM t1 "
+  run("SELECT _WSTART, MIN(c3 + 10) FROM t1 "
       "WHERE ts BETWEEN TIMESTAMP '2022-04-01 00:00:00' AND TIMESTAMP '2022-04-30 23:59:59.999' INTERVAL(10s)");
 
   run("SELECT SUM(c4), MAX(c3) FROM t1 INTERVAL(10s)");

tests/pytest/stream/test1.py

@@ -18,7 +18,7 @@ class TDTestCase:
         tdSql.execute('create table ownsampling_ct1 using downsampling_stb tags(10, 10.1, "beijing", True);')
         tdSql.execute('create table if not exists scalar_stb (ts timestamp, c1 int, c2 double, c3 binary(20)) tags (t1 int);')
         tdSql.execute('create table scalar_ct1 using scalar_stb tags(10);')
-        tdSql.execute('create stream downsampling_stream into output_downsampling_stb as select _wstartts AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
+        tdSql.execute('create stream downsampling_stream into output_downsampling_stb as select _wstart AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
         tdSql.execute('create stream scalar_stream into output_scalar_stb as select ts, abs(c1) a1 , abs(c2) a2 from scalar_stb;')
         tdSql.execute('insert into scalar_ct1 values (1653471881952, 100, 100.1, "beijing");')
         tdSql.execute('insert into scalar_ct1 values (1653471881952+1s, -50, -50.1, "tianjin");')

tests/pytest/stream/test2.py

@@ -22,23 +22,23 @@ class TDTestCase:
             tdSql.execute('create table downsampling_ct1 using downsampling_stb tags(10, 10.1, "Beijing", True);')
             tdSql.execute('create table if not exists scalar_stb (ts timestamp, c1 int, c2 double, c3 binary(20), c4 nchar(20), c5 nchar(20)) tags (t1 int);')
             tdSql.execute('create table scalar_ct1 using scalar_stb tags(10);')
-            tdSql.execute('create stream downsampling_stream into output_downsampling_stb as select _wstartts AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
+            tdSql.execute('create stream downsampling_stream into output_downsampling_stb as select _wstart AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
             tdSql.execute('insert into downsampling_ct1 values (1653547828591, 100, 100.1, "Beijing", True);')
             tdSql.execute('insert into downsampling_ct1 values (1653547828591+1s, -100, -100.1, "Tianjin", False);')
             tdSql.execute('insert into downsampling_ct1 values (1653547828591+2s, 50, 50.3, "HeBei", False);')
             tdSql.execute('select * from output_downsampling_stb;')
             tdSql.execute('select start, `min(c1)`, `max(c2)`, `sum(c1)` from output_downsampling_stb;')
-            tdSql.execute('select _wstartts AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
+            tdSql.execute('select _wstart AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
             tdSql.execute('insert into downsampling_ct1 values (1653547828591+10m, 60, 60.3, "heilongjiang", True);')
             tdSql.execute('insert into downsampling_ct1 values (1653547828591+11m, 70, 70.3, "JiLin", True);')
             tdSql.execute('select * from output_downsampling_stb;')
             tdSql.execute('select start, `min(c1)`, `max(c2)`, `sum(c1)` from output_downsampling_stb;')
-            tdSql.execute('select _wstartts AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
+            tdSql.execute('select _wstart AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
             tdSql.execute('insert into downsampling_ct1 values (1653547828591+21m, 70, 70.3, "JiLin", True);')
             tdSql.execute('select * from output_downsampling_stb;')
             tdSql.execute('select * from output_downsampling_stb;')
             tdSql.execute('select start, `min(c1)`, `max(c2)`, `sum(c1)` from output_downsampling_stb;')
-            tdSql.execute('select _wstartts AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
+            tdSql.execute('select _wstart AS start, min(c1), max(c2), sum(c1) from downsampling_stb interval(10m);')
             tdSql.execute('create stream abs_stream into output_abs_stb as select ts, abs(c1), abs(c2), c3 from scalar_stb;')
             tdSql.query('describe output_abs_stb')
             tdSql.execute('create stream acos_stream into output_acos_stb as select ts, acos(c1), acos(c2), c3 from scalar_stb;')

tests/script/tsim/query/interval-offset.sim

@@ -68,8 +68,8 @@ sql insert into ct4 values ( '2022-12-01 01:01:30.000', 8 )
 sql insert into ct4 values ( '2022-12-31 01:01:36.000', 9 )
 
 print ================ start query ======================
-sql select _wstartts, _wendts, _wduration, _qstartts, _qendts, count(*) from ct1 interval(10s, 2s)
-print ===> select _wstartts, _wendts, _wduration, _qstartts, _qendts, count(*) from ct1 interval(10s, 2s)
+sql select _wstart, _wend, _wduration, _qstart, _qend, count(*) from ct1 interval(10s, 2s)
+print ===> select _wstart, _wend, _wduration, _qstart, _qend, count(*) from ct1 interval(10s, 2s)
 print ===> rows: $rows
 print ===> rows0: $data00 $data01 $data02 $data05
 print ===> rows1: $data10 $data11 $data12 $data15
@@ -89,8 +89,8 @@ if $data45 != 1 then
   return -1
 endi
 
-sql select _wstartts, _wendts, _wduration, _qstartts, _qendts,  count(*) from ct1 interval(10s, 2s) sliding(10s)
-print ===> select _wstartts, _wendts, _wduration, _qstartts, _qendts,  count(*) from ct1 interval(10s, 2s) sliding(10s)
+sql select _wstart, _wend, _wduration, _qstart, _qend,  count(*) from ct1 interval(10s, 2s) sliding(10s)
+print ===> select _wstart, _wend, _wduration, _qstart, _qend,  count(*) from ct1 interval(10s, 2s) sliding(10s)
 print ===> rows: $rows
 print ===> rows0: $data00 $data01 $data02 $data05
 print ===> rows1: $data10 $data11 $data12 $data15
@@ -177,7 +177,7 @@ if $data70 != 1 then
   return -1
 endi
 
-sql select _wstartts, count(tbcol), _wduration, _wstartts, count(*) from ct3 interval(1n, 1w)
+sql select _wstart, count(tbcol), _wduration, _wstart, count(*) from ct3 interval(1n, 1w)
 print ===> select count(tbcol), sum(tbcol), max(tbcol), min(tbcol), count(*) from ct3 interval(1n, 1w)
 print ===> rows: $rows
 print ===> rows0: $data00 $data01 $data02 $data03 $data04
@@ -200,11 +200,11 @@ if $data02 != 2678400000 then
   return -1
 endi
 
-sql_error select  _wstartts, count(tbcol), _wduration, _wstartts, count(*) from ct3 interval(1n, 1w) sliding(2w)
-sql_error select _wstartts, count(tbcol), _wduration, _wstartts, count(*)  from ct3 interval(1n, 1w) sliding(4w)
+sql_error select  _wstart, count(tbcol), _wduration, _wstart, count(*) from ct3 interval(1n, 1w) sliding(2w)
+sql_error select _wstart, count(tbcol), _wduration, _wstart, count(*)  from ct3 interval(1n, 1w) sliding(4w)
 
-sql select _wstartts, count(tbcol), _wduration, _wstartts, count(*) from ct4 interval(1y, 6n)
-print ===> select _wstartts, count(tbcol), _wduration, _wstartts, count(*) from ct4 interval(1y, 6n)
+sql select _wstart, count(tbcol), _wduration, _wstart, count(*) from ct4 interval(1y, 6n)
+print ===> select _wstart, count(tbcol), _wduration, _wstart, count(*) from ct4 interval(1y, 6n)
 print ===> rows: $rows
 print ===> rows0: $data00 $data01 $data02 $data03 $data04
 print ===> rows1: $data10 $data11 $data12 $data13 $data14
@@ -220,7 +220,7 @@ if $data04 != 2 then
 endi
 
 sql_error select count(tbcol), sum(tbcol), max(tbcol), min(tbcol), count(*) from ct4 interval(1y, 6n) sliding(6n)
-sql_error select _wstartts, count(tbcol), _wduration, _wstartts, count(*) from ct4 interval(1y, 6n) sliding(12n)
+sql_error select _wstart, count(tbcol), _wduration, _wstart, count(*) from ct4 interval(1y, 6n) sliding(12n)
 
 #=================================================
 print =============== stop and restart taosd

tests/script/tsim/query/interval.sim

@@ -82,8 +82,8 @@ print =============== step4
 #$cc = 1 * 60000
 #$ms2 = 1601481600000 - $cc
 
-sql select _wstartts, _wendts, _wduration, _qstartts, _qendts, count(tbcol) from $tb  interval(1m)
-print ===> select _wstartts, _wendts, _wduration, _qstartts, _qendts, count(tbcol) from $tb  interval(1m)
+sql select _wstart, _wend, _wduration, _qstart, _qend, count(tbcol) from $tb  interval(1m)
+print ===> select _wstart, _wend, _wduration, _qstart, _qend, count(tbcol) from $tb  interval(1m)
 print ===> $rows $data01 $data05
 if $rows != $rowNum then
   return -1

tests/script/tsim/query/session.sim

@@ -81,7 +81,7 @@ sql use $dbNamme
 
 # session(ts,5a)
 print ====> select count(*) from dev_001 session(ts,5a)
-sql select _wstartts, count(*) from dev_001 session(ts,5a)
+sql select _wstart, count(*) from dev_001 session(ts,5a)
 print ====> rows: $rows
 print ====> $data00 $data01 $data02 $data03 $data04 $data05
 print ====> $data10 $data11 $data12 $data13 $data14 $data15
@@ -102,7 +102,7 @@ endi
 
 #
 #print ====> select count(*) from (select * from dev_001) session(ts,5a)
-#sql select _wstartts, count(*) from (select * from dev_001) session(ts,5a)
+#sql select _wstart, count(*) from (select * from dev_001) session(ts,5a)
 #if $rows != 15 then
 #  return -1
 #endi
@@ -111,7 +111,7 @@ endi
 #endi
 
 print ====> select count(*) from dev_001 session(ts,1s)
-sql select _wstartts, count(*) from dev_001 session(ts,1s)
+sql select _wstart, count(*) from dev_001 session(ts,1s)
 if $rows != 12 then
   return -1
 endi
@@ -120,7 +120,7 @@ if $data01 != 5 then
 endi
 
 #print ====> select count(*) from (select * from dev_001) session(ts,1s)
-#sql select _wstartts, count(*) from (select * from dev_001) session(ts,1s)
+#sql select _wstart, count(*) from (select * from dev_001) session(ts,1s)
 #if $rows != 12 then
 #  return -1
 #endi
@@ -129,7 +129,7 @@ endi
 #endi
 
 print ====> select count(*) from dev_001 session(ts,1000a)
-sql select _wstartts, count(*) from dev_001 session(ts,1000a)
+sql select _wstart, count(*) from dev_001 session(ts,1000a)
 if $rows != 12 then
   return -1
 endi
@@ -138,7 +138,7 @@ if $data01 != 5 then
 endi
 
 #print ====> select count(*) from  (select * from dev_001) session(ts,1000a)
-#sql select _wstartts, count(*) from  (select * from dev_001) session(ts,1000a)
+#sql select _wstart, count(*) from  (select * from dev_001) session(ts,1000a)
 #if $rows != 12 then
 #  return -1
 #endi
@@ -147,7 +147,7 @@ endi
 #endi
 
 print ====> select count(*) from dev_001 session(ts,1m)
-sql select _wstartts, count(*) from dev_001 session(ts,1m)
+sql select _wstart, count(*) from dev_001 session(ts,1m)
 if $rows != 9 then
   return -1
 endi
@@ -156,7 +156,7 @@ if $data01 != 8 then
 endi
 
 #print ====> select count(*) from (select * from dev_001) session(ts,1m)
-#sql select _wstartts, count(*) from (select * from dev_001) session(ts,1m)
+#sql select _wstart, count(*) from (select * from dev_001) session(ts,1m)
 #if $rows != 9 then
 #  return -1
 #endi
@@ -165,7 +165,7 @@ endi
 #endi
 
 print ====> select count(*) from dev_001 session(ts,1h)
-sql select _wstartts, count(*) from dev_001 session(ts,1h)
+sql select _wstart, count(*) from dev_001 session(ts,1h)
 if $rows != 6 then
   return -1
 endi
@@ -174,7 +174,7 @@ if $data01 != 11 then
 endi
 
 #print ====> select count(*) from (select * from dev_001) session(ts,1h)
-#sql select _wstartts, count(*) from (select * from dev_001) session(ts,1h)
+#sql select _wstart, count(*) from (select * from dev_001) session(ts,1h)
 #if $rows != 6 then
 #  return -1
 #endi
@@ -183,7 +183,7 @@ endi
 #endi
 
 print ====> select count(*) from dev_001 session(ts,1d)
-sql select _wstartts, count(*) from dev_001 session(ts,1d)
+sql select _wstart, count(*) from dev_001 session(ts,1d)
 if $rows != 4 then
   return -1
 endi
@@ -192,7 +192,7 @@ if $data01 != 13 then
 endi
 
 #print ====> select count(*) from (select * from dev_001) session(ts,1d)
-#sql select _wstartts, count(*) from (select * from dev_001) session(ts,1d)
+#sql select _wstart, count(*) from (select * from dev_001) session(ts,1d)
 #if $rows != 4 then
 #  return -1
 #endi
@@ -201,7 +201,7 @@ endi
 #endi
 
 print ====> select count(*) from dev_001 session(ts,1w)
-sql select _wstartts, count(*) from dev_001 session(ts,1w)
+sql select _wstart, count(*) from dev_001 session(ts,1w)
 if $rows != 2 then
   return -1
 endi
@@ -210,7 +210,7 @@ if $data01 != 15 then
 endi
 
 #print ====> select count(*) from (select * from dev_001) session(ts,1w)
-#sql select _wstartts, count(*) from (select * from dev_001) session(ts,1w)
+#sql select _wstart, count(*) from (select * from dev_001) session(ts,1w)
 #if $rows != 2 then
 #  return -1
 #endi
@@ -298,7 +298,7 @@ sql_error select count(*) from dev_001 session(i,1y)
 sql_error select count(*) from dev_001 session(ts,1d) where ts <'2020-05-20 0:0:0'
 
 #print ====> select count(*) from dev_001 session(ts,1u)
-#sql select _wstartts, count(*) from dev_001 session(ts,1u)
+#sql select _wstart, count(*) from dev_001 session(ts,1u)
 #print rows: $rows
 #print $data00 $data01 $data02 $data03
 #print $data10 $data11 $data12 $data13

tests/script/tsim/query/stddev.sim

@@ -103,29 +103,29 @@ if $rows != 1 then
   return -1
 endi
 
-print =====sql : select _wstartts, stddev(c1) as b from ct4 interval(1y)
-sql select _wstartts, stddev(c1) as b from ct4 interval(1y)
+print =====sql : select _wstart, stddev(c1) as b from ct4 interval(1y)
+sql select _wstart, stddev(c1) as b from ct4 interval(1y)
 print ===> $rows
 if $rows != 4 then
   return -1
 endi
 
-print =====sql : select _wstartts, stddev(c1) as b from t1 interval(1y)
-sql select _wstartts, stddev(c1) as b from t1 interval(1y)
+print =====sql : select _wstart, stddev(c1) as b from t1 interval(1y)
+sql select _wstart, stddev(c1) as b from t1 interval(1y)
 print ===> $rows
 if $rows != 3 then
   return -1
 endi
 
-print =====select _wstartts, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
-sql select _wstartts, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
+print =====select _wstart, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
+sql select _wstart, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
 # print ===> $rows
 # if $rows != 3 then
 #   return -1
 # endi
 
-print =====select _wstartts, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
-sql select _wstartts, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
+print =====select _wstart, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
+sql select _wstart, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
 # print ===> $rows
 # if $rows != 3 then
 #   return -1
@@ -281,29 +281,29 @@ if $rows != 1 then
   return -1
 endi
 
-print =====sql : select _wstartts, stddev(c1) as b from ct4 interval(1y)
-sql select _wstartts, stddev(c1) as b from ct4 interval(1y)
+print =====sql : select _wstart, stddev(c1) as b from ct4 interval(1y)
+sql select _wstart, stddev(c1) as b from ct4 interval(1y)
 print ===> $rows
 if $rows != 4 then
   return -1
 endi
 
-print =====sql : select _wstartts, stddev(c1) as b from t1 interval(1y)
-sql select _wstartts, stddev(c1) as b from t1 interval(1y)
+print =====sql : select _wstart, stddev(c1) as b from t1 interval(1y)
+sql select _wstart, stddev(c1) as b from t1 interval(1y)
 print ===> $rows
 if $rows != 3 then
   return -1
 endi
 
-print =====select _wstartts, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
-sql select _wstartts, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
+print =====select _wstart, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
+sql select _wstart, stddev(c1) as b from ct4 where c1 <= 6 interval(180d)
 print ===> $rows
 if $rows != 3 then
   return -1
 endi
 
-print =====select _wstartts, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
-sql select _wstartts, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
+print =====select _wstart, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
+sql select _wstart, stddev(c1) as b from t1 where c1 <= 6 interval(180d)
 print ===> $rows
 if $rows != 3 then
   return -1

tests/script/tsim/sma/tsmaCreateInsertQuery.sim

@@ -58,7 +58,7 @@ if $rows != 5 then
 endi
 
 print =============== select * from stb from memory in designated vgroup
-sql select _wstartts, _wendts, min(c1),max(c2),max(c1) from stb interval(5m,10s) sliding(5m);
+sql select _wstart, _wend, min(c1),max(c2),max(c1) from stb interval(5m,10s) sliding(5m);
 print $data00 $data01 $data02 $data03 $data04
 if $rows != 1 then
   print rows $rows != 1
@@ -81,7 +81,7 @@ if $data04 != 20 then
 endi
 
 print =============== select * from stb from memory in common vgroups
-sql select _wstartts, _wendts, min(c1),max(c2),max(c1),max(c3) from stb interval(5m,10s) sliding(5m);
+sql select _wstart, _wend, min(c1),max(c2),max(c1),max(c3) from stb interval(5m,10s) sliding(5m);
 print $data00 $data01 $data02 $data03 $data04 $data05
 if $rows != 1 then
   print rows $rows != 1
@@ -128,7 +128,7 @@ if $rows != 5 then
 endi
 
 print =============== select * from stb from file in designated vgroup
-sql select _wstartts, _wendts, min(c1),max(c2),max(c1) from stb interval(5m,10s) sliding(5m);
+sql select _wstart, _wend, min(c1),max(c2),max(c1) from stb interval(5m,10s) sliding(5m);
 print $data00 $data01 $data02 $data03 $data04
 if $rows != 1 then
   print rows $rows != 1
@@ -151,7 +151,7 @@ if $data04 != 20 then
 endi
 
 print =============== select * from stb from file in common vgroups
-sql select _wstartts, _wendts, min(c1),max(c2),max(c1),max(c3) from stb interval(5m,10s) sliding(5m);
+sql select _wstart, _wend, min(c1),max(c2),max(c1),max(c3) from stb interval(5m,10s) sliding(5m);
 print $data00 $data01 $data02 $data03 $data04 $data05
 if $rows != 1 then
   print rows $rows != 1

tests/script/tsim/stream/basic0.sim

@@ -33,7 +33,7 @@ if $rows != 3 then
   return -1
 endi
 
-sql create stream s1 trigger at_once into outstb as select _wstartts, min(k), max(k), sum(k) as sum_alias from ct1 interval(10m)
+sql create stream s1 trigger at_once into outstb as select _wstart, min(k), max(k), sum(k) as sum_alias from ct1 interval(10m)
 
 sql show stables
 if $rows != 2 then 
@@ -48,7 +48,7 @@ sleep 100
 #===================================================================
 print =============== query data from child table
 
-sql select `_wstartts`,`min(k)`,`max(k)`,sum_alias from outstb
+sql select `_wstart`,`min(k)`,`max(k)`,sum_alias from outstb
 print rows: $rows 
 print $data00  $data01 $data02 $data03
 if $rows != 1 then
@@ -77,7 +77,7 @@ sleep 100
 #===================================================================
 print =============== query data from child table
 
-sql select `_wstartts`,`min(k)`,`max(k)`,sum_alias from outstb
+sql select `_wstart`,`min(k)`,`max(k)`,sum_alias from outstb
 print rows: $rows 
 print $data00  $data01 $data02 $data03
 if $rows != 1 then
@@ -105,7 +105,7 @@ sleep 100
 #===================================================================
 print =============== query data from child table
 
-sql select `_wstartts`,`min(k)`,`max(k)`,sum_alias from outstb
+sql select `_wstart`,`min(k)`,`max(k)`,sum_alias from outstb
 print rows: $rows 
 print $data00  $data01 $data02 $data03
 print $data10  $data11 $data12 $data13

tests/script/tsim/stream/basic1.sim

@@ -17,14 +17,14 @@ sql use test
 
 
 sql create table t1(ts timestamp, a int, b int , c int, d double);
-sql create stream streams1 trigger at_once  into streamt as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from t1 interval(10s);
+sql create stream streams1 trigger at_once  into streamt as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from t1 interval(10s);
 sql insert into t1 values(1648791213000,1,2,3,1.0);
 sql insert into t1 values(1648791223001,2,2,3,1.1);
 sql insert into t1 values(1648791233002,3,2,3,2.1);
 sql insert into t1 values(1648791243003,4,2,3,3.1);
 sql insert into t1 values(1648791213004,4,2,3,4.1);
 sleep 1000
-sql select `_wstartts`, c1, c2 ,c3 ,c4, c5 from streamt;
+sql select `_wstart`, c1, c2 ,c3 ,c4, c5 from streamt;
 
 if $rows != 4 then
   print ======$rows
@@ -254,7 +254,7 @@ endi
 
 sql insert into t1 values(1648791223002,12,14,13,11.1);
 sleep 100
-sql select `_wstartts`, c1, c2 ,c3 ,c4, c5 from streamt;
+sql select `_wstart`, c1, c2 ,c3 ,c4, c5 from streamt;
 
 # row 1
 if $data11 != 2 then
@@ -284,7 +284,7 @@ endi
 
 sql insert into t1 values(1648791223003,12,14,13,11.1);
 sleep 100
-sql select `_wstartts`, c1, c2 ,c3 ,c4, c5 from streamt;
+sql select `_wstart`, c1, c2 ,c3 ,c4, c5 from streamt;
 
 # row 1
 if $data11 != 3 then
@@ -316,7 +316,7 @@ sql insert into t1 values(1648791223001,1,1,1,1.1);
 sql insert into t1 values(1648791223002,2,2,2,2.1);
 sql insert into t1 values(1648791223003,3,3,3,3.1);
 sleep 100
-sql select `_wstartts`, c1, c2 ,c3 ,c4, c5 from streamt;
+sql select `_wstart`, c1, c2 ,c3 ,c4, c5 from streamt;
 
 # row 1
 if $data11 != 3 then
@@ -348,7 +348,7 @@ sql insert into t1 values(1648791233003,3,2,3,2.1);
 sql insert into t1 values(1648791233002,5,6,7,8.1);
 sql insert into t1 values(1648791233002,3,2,3,2.1);
 sleep 100
-sql select `_wstartts`, c1, c2 ,c3 ,c4, c5 from streamt;
+sql select `_wstart`, c1, c2 ,c3 ,c4, c5 from streamt;
 
 # row 2
 if $data21 != 2 then
@@ -378,7 +378,7 @@ endi
 
 sql insert into t1 values(1648791213004,4,2,3,4.1) (1648791213006,5,4,7,9.1) (1648791213004,40,20,30,40.1) (1648791213005,4,2,3,4.1);
 sleep 100
-sql select `_wstartts`, c1, c2 ,c3 ,c4, c5 from streamt;
+sql select `_wstart`, c1, c2 ,c3 ,c4, c5 from streamt;
 
 # row 0
 if $data01 != 4 then
@@ -408,7 +408,7 @@ endi
 
 sql insert into t1 values(1648791223004,4,2,3,4.1) (1648791233006,5,4,7,9.1) (1648791223004,40,20,30,40.1) (1648791233005,4,2,3,4.1);
 sleep 100
-sql select `_wstartts`, c1, c2 ,c3 ,c4, c5 from streamt;
+sql select `_wstart`, c1, c2 ,c3 ,c4, c5 from streamt;
 
 # row 1
 if $data11 != 4 then

tests/script/tsim/stream/basic2.sim

@@ -33,7 +33,7 @@ if $rows != 3 then
   return -1
 endi
 
-sql create stream s1 trigger at_once into outstb as select _wstartts, min(k), max(k), sum(k) as sum_alias from ct1 interval(10m)
+sql create stream s1 trigger at_once into outstb as select _wstart, min(k), max(k), sum(k) as sum_alias from ct1 interval(10m)
 
 sql show stables
 if $rows != 2 then 
@@ -48,7 +48,7 @@ sleep 100
 #===================================================================
 print =============== query data from child table
 
-sql select `_wstartts`,`min(k)`,`max(k)`,sum_alias from outstb
+sql select `_wstart`,`min(k)`,`max(k)`,sum_alias from outstb
 print rows: $rows 
 print $data00  $data01 $data02 $data03
 if $rows != 1 then
@@ -77,7 +77,7 @@ sleep 100
 #===================================================================
 print =============== query data from child table
 
-sql select `_wstartts`,`min(k)`,`max(k)`,sum_alias from outstb
+sql select `_wstart`,`min(k)`,`max(k)`,sum_alias from outstb
 print rows: $rows 
 print $data00  $data01 $data02 $data03
 print $data10  $data11 $data12 $data13

tests/script/tsim/stream/distributeInterval0.sim

@@ -41,7 +41,7 @@ sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
 sql create table ts3 using st tags(3,2,2);
 sql create table ts4 using st tags(4,2,2);
-sql create stream stream_t1 trigger at_once watermark 1d into streamtST1 as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st interval(10s);
+sql create stream stream_t1 trigger at_once watermark 1d into streamtST1 as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st interval(10s);
 
 sleep 1000
 
@@ -195,7 +195,7 @@ if $data35 != 3 then
   return -1
 endi
 
-sql select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5, avg(d) from st interval(10s);
+sql select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5, avg(d) from st interval(10s);
 
 
 sql create database test1  vgroups 1;
@@ -203,7 +203,7 @@ sql use test1;
 sql create stable st(ts timestamp, a int, b int , c int) tags(ta int,tb int,tc int);
 sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
-sql create stream stream_t2 trigger at_once  watermark 20s into streamtST1 as select  _wstartts, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6 from st interval(10s) ;
+sql create stream stream_t2 trigger at_once  watermark 20s into streamtST1 as select  _wstart, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6 from st interval(10s) ;
 
 sql insert into ts1 values(1648791211000,1,2,3);
 sql insert into ts1 values(1648791222001,2,2,3);

tests/script/tsim/stream/distributeIntervalRetrive0.sim

@@ -41,7 +41,7 @@ sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
 sql create table ts3 using st tags(3,2,2);
 sql create table ts4 using st tags(4,2,2);
-sql create stream stream_t1 trigger at_once into streamtST1 as select  _wstartts, count(*) c1, sum(a) c3 , max(b)  c4, min(c) c5 from st interval(10s);
+sql create stream stream_t1 trigger at_once into streamtST1 as select  _wstart, count(*) c1, sum(a) c3 , max(b)  c4, min(c) c5 from st interval(10s);
 
 sleep 1000
 

tests/script/tsim/stream/distributeSession0.sim

@@ -39,7 +39,7 @@ sql use test;
 sql create stable st(ts timestamp,a int,b int,c int) tags(ta int,tb int,tc int);
 sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
-sql create stream stream_t1 trigger at_once  into streamtST as select  _wstartts, count(*) c1, sum(a) c2 ,  max(b)  c3 from st session(ts, 10s) ;
+sql create stream stream_t1 trigger at_once  into streamtST as select  _wstart, count(*) c1, sum(a) c2 ,  max(b)  c3 from st session(ts, 10s) ;
 
 sleep 1000
 

tests/script/tsim/stream/ignoreExpiredData.sim

@@ -45,9 +45,9 @@ print $data00 $data01 $data02
 
 sql use test
 sql create table t1(ts timestamp, a int, b int , c int, d double);
-sql create stream streams1 trigger at_once IGNORE EXPIRED into streamt1 as select  _wstartts, count(*) c1, sum(a) c3 from t1 interval(10s);
-sql create stream streams2 trigger at_once IGNORE EXPIRED into streamt2 as select  _wstartts, count(*) c1, sum(a) c3 from t1 session(ts,10s);
-sql create stream streams3 trigger at_once IGNORE EXPIRED into streamt3 as select  _wstartts, count(*) c1, sum(a) c3 from t1 state_window(a);
+sql create stream streams1 trigger at_once IGNORE EXPIRED into streamt1 as select  _wstart, count(*) c1, sum(a) c3 from t1 interval(10s);
+sql create stream streams2 trigger at_once IGNORE EXPIRED into streamt2 as select  _wstart, count(*) c1, sum(a) c3 from t1 session(ts,10s);
+sql create stream streams3 trigger at_once IGNORE EXPIRED into streamt3 as select  _wstart, count(*) c1, sum(a) c3 from t1 state_window(a);
 sql insert into t1 values(1648791213000,1,2,3,1.0);
 sql insert into t1 values(1648791223001,1,2,3,1.1);
 sql insert into t1 values(1648791233002,2,2,3,2.1);
@@ -111,8 +111,8 @@ sql use test1
 sql create stable st(ts timestamp,a int,b int,c int) tags(ta int,tb int,tc int);
 sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
-sql create stream stream_t1 trigger at_once IGNORE EXPIRED into streamtST1 as select  _wstartts, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6 from st interval(10s) ;
-sql create stream stream_t2 trigger at_once IGNORE EXPIRED into streamtST2 as select  _wstartts, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6 from st session(ts, 10s) ;
+sql create stream stream_t1 trigger at_once IGNORE EXPIRED into streamtST1 as select  _wstart, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6 from st interval(10s) ;
+sql create stream stream_t2 trigger at_once IGNORE EXPIRED into streamtST2 as select  _wstart, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6 from st session(ts, 10s) ;
 sql insert into ts1 values(1648791211000,1,2,3);
 sql insert into ts1 values(1648791222001,2,2,3);
 sql insert into ts2 values(1648791211000,1,2,3);

tests/script/tsim/stream/partitionby.sim

@@ -11,7 +11,7 @@ sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
 sql create table ts3 using st tags(3,2,2);
 sql create table ts4 using st tags(4,2,2);
-sql create stream stream_t1 trigger at_once into streamtST1 as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st partition by ta,tb,tc interval(10s);
+sql create stream stream_t1 trigger at_once into streamtST1 as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st partition by ta,tb,tc interval(10s);
 
 sql insert into ts1 values(1648791213001,1,12,3,1.0);
 sql insert into ts2 values(1648791213001,1,12,3,1.0);
@@ -43,7 +43,7 @@ sql create table ts1 using st tags(1,2,3);
 sql create table ts2 using st tags(1,3,4);
 sql create table ts3 using st tags(1,4,5);
 
-sql create stream streams1 trigger at_once  into streamt as select  _wstartts, count(*) c1, count(a) c2  from st partition by ta,tb,tc interval(10s);
+sql create stream streams1 trigger at_once  into streamt as select  _wstart, count(*) c1, count(a) c2  from st partition by ta,tb,tc interval(10s);
 
 
 sql insert into ts1 values(1648791211000,1,2,3);
@@ -74,7 +74,7 @@ sql create stable st(ts timestamp,a int,b int,c int,id int) tags(ta int,tb int,t
 sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
 
-sql create stream stream_t2 trigger at_once  watermark 20s into streamtST as select  _wstartts, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6, max(id) c7 from st partition by ta interval(10s) ;
+sql create stream stream_t2 trigger at_once  watermark 20s into streamtST as select  _wstart, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6, max(id) c7 from st partition by ta interval(10s) ;
 sql insert into ts1 values(1648791211000,1,2,3,1);
 sql insert into ts1 values(1648791222001,2,2,3,2);
 sql insert into ts2 values(1648791211000,1,2,3,3);

tests/script/tsim/stream/partitionby1.sim

@@ -11,7 +11,7 @@ sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
 sql create table ts3 using st tags(3,2,2);
 sql create table ts4 using st tags(4,2,2);
-sql create stream stream_t1 trigger at_once into streamtST1 as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st partition by tbname interval(10s);
+sql create stream stream_t1 trigger at_once into streamtST1 as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st partition by tbname interval(10s);
 
 sql insert into ts1 values(1648791213001,1,12,3,1.0);
 sql insert into ts2 values(1648791213001,1,12,3,1.0);
@@ -43,7 +43,7 @@ sql create table ts1 using st tags(1,2,3);
 sql create table ts2 using st tags(1,3,4);
 sql create table ts3 using st tags(1,4,5);
 
-sql create stream streams1 trigger at_once  into streamt as select  _wstartts, count(*) c1, count(a) c2  from st partition by tbname interval(10s);
+sql create stream streams1 trigger at_once  into streamt as select  _wstart, count(*) c1, count(a) c2  from st partition by tbname interval(10s);
 
 
 sql insert into ts1 values(1648791211000,1,2,3);
@@ -74,7 +74,7 @@ sql create stable st(ts timestamp,a int,b int,c int,id int) tags(ta int,tb int,t
 sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
 
-sql create stream stream_t2 trigger at_once  into streamtST as select  _wstartts, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6, max(id) c7 from st partition by tbname interval(10s) ;
+sql create stream stream_t2 trigger at_once  into streamtST as select  _wstart, count(*) c1, count(a) c2 , sum(a) c3 ,  max(b)  c5, min(c) c6, max(id) c7 from st partition by tbname interval(10s) ;
 sql insert into ts1 values(1648791211000,1,2,3,1);
 sql insert into ts1 values(1648791222001,2,2,3,2);
 sql insert into ts2 values(1648791211000,1,2,3,3);

tests/script/tsim/stream/schedSnode.sim

@@ -16,7 +16,7 @@ sql create table ts1 using st tags(1,1,1);
 sql create table ts2 using st tags(2,2,2);
 sql create table ts3 using st tags(3,2,2);
 sql create table ts4 using st tags(4,2,2);
-sql create stream stream_t1 trigger at_once into target.streamtST1 as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st interval(10s);
+sql create stream stream_t1 trigger at_once into target.streamtST1 as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from st interval(10s);
 
 sleep 1000
 
@@ -170,4 +170,4 @@ if $data35 != 3 then
   return -1
 endi
 
-sql select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5, avg(d) from st interval(10s);
+sql select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5, avg(d) from st interval(10s);

tests/script/tsim/stream/session0.sim

@@ -17,7 +17,7 @@ sql use test
 
 
 sql create table t1(ts timestamp, a int, b int , c int, d double,id int);
-sql create stream streams1 trigger at_once  into streamt as select  _wstartts, count(*) c1,  sum(a), max(a), min(d), stddev(a), last(a), first(d), max(id) s from t1 session(ts,10s);
+sql create stream streams1 trigger at_once  into streamt as select  _wstart, count(*) c1,  sum(a), max(a), min(d), stddev(a), last(a), first(d), max(id) s from t1 session(ts,10s);
 sql insert into t1 values(1648791213000,NULL,NULL,NULL,NULL,1);
 sql insert into t1 values(1648791223001,10,2,3,1.1,2);
 sql insert into t1 values(1648791233002,3,2,3,2.1,3);
@@ -179,7 +179,7 @@ endi
 sql create database test2 vgroups 1;
 sql use test2;
 sql create table t2(ts timestamp, a int, b int , c int, d double, id int);
-sql create stream streams2 trigger at_once  watermark 1d into streamt2 as select  _wstartts,apercentile(a,30) c1, apercentile(a,70), apercentile(a,20,"t-digest") c2, apercentile(a,60,"t-digest") c3, max(id) c4 from t2 session(ts,10s);
+sql create stream streams2 trigger at_once  watermark 1d into streamt2 as select  _wstart,apercentile(a,30) c1, apercentile(a,70), apercentile(a,20,"t-digest") c2, apercentile(a,60,"t-digest") c3, max(id) c4 from t2 session(ts,10s);
 sql insert into t2 values(1648791213001,1,1,3,1.0,1);
 sql insert into t2 values(1648791213002,2,2,6,3.4,2);
 sql insert into t2 values(1648791213003,4,9,3,4.8,3);
@@ -229,13 +229,13 @@ endi
 sql create database test3 vgroups 1;
 sql use test3;
 sql create table t1(ts timestamp, a int, b int , c int, d double);
-sql create stream streams3 trigger at_once  watermark 1d into streamt3 as select  _wstartts, min(b), a,c from t1 session(ts,10s);
-sql create stream streams4 trigger at_once  watermark 1d into streamt4 as select  _wstartts, max(b), a,c from t1 session(ts,10s);
-# sql create stream streams5 trigger at_once  watermark 1d into streamt5 as select  _wstartts, top(b,3), a,c from t1 session(ts,10s);
-# sql create stream streams6 trigger at_once  watermark 1d into streamt6 as select  _wstartts, bottom(b,3), a,c from t1 session(ts,10s);
-# sql create stream streams7 trigger at_once  watermark 1d into streamt7 as select  _wstartts, spread(a), elapsed(ts), hyperloglog(a) from t1 session(ts,10s);
-sql create stream streams7 trigger at_once  watermark 1d into streamt7 as select  _wstartts, spread(a), hyperloglog(a) from t1 session(ts,10s);
-# sql create stream streams8 trigger at_once  watermark 1d into streamt8 as select  _wstartts, histogram(a,"user_input", "[1,3,5,7]", 1), histogram(a,"user_input", "[1,3,5,7]", 0) from t1 session(ts,10s);
+sql create stream streams3 trigger at_once  watermark 1d into streamt3 as select  _wstart, min(b), a,c from t1 session(ts,10s);
+sql create stream streams4 trigger at_once  watermark 1d into streamt4 as select  _wstart, max(b), a,c from t1 session(ts,10s);
+# sql create stream streams5 trigger at_once  watermark 1d into streamt5 as select  _wstart, top(b,3), a,c from t1 session(ts,10s);
+# sql create stream streams6 trigger at_once  watermark 1d into streamt6 as select  _wstart, bottom(b,3), a,c from t1 session(ts,10s);
+# sql create stream streams7 trigger at_once  watermark 1d into streamt7 as select  _wstart, spread(a), elapsed(ts), hyperloglog(a) from t1 session(ts,10s);
+sql create stream streams7 trigger at_once  watermark 1d into streamt7 as select  _wstart, spread(a), hyperloglog(a) from t1 session(ts,10s);
+# sql create stream streams8 trigger at_once  watermark 1d into streamt8 as select  _wstart, histogram(a,"user_input", "[1,3,5,7]", 1), histogram(a,"user_input", "[1,3,5,7]", 0) from t1 session(ts,10s);
 sql insert into t1 values(1648791213001,1,1,1,1.0);
 sql insert into t1 values(1648791213002,2,3,2,3.4);
 sql insert into t1 values(1648791213003,4,9,3,4.8);

tests/script/tsim/stream/session1.sim

@@ -17,7 +17,7 @@ sql use test
 
 
 sql create table t1(ts timestamp, a int, b int , c int, d double,id int);
-sql create stream streams2 trigger at_once  into streamt as select  _wstartts, count(*) c1,  sum(a), min(b), max(id) s from t1 session(ts,10s);
+sql create stream streams2 trigger at_once  into streamt as select  _wstart, count(*) c1,  sum(a), min(b), max(id) s from t1 session(ts,10s);
 sql insert into t1 values(1648791210000,1,1,1,1.1,1);
 sql insert into t1 values(1648791220000,2,2,2,2.1,2);
 sql insert into t1 values(1648791230000,3,3,3,3.1,3);

tests/script/tsim/stream/state0.sim

@@ -16,7 +16,7 @@ print $data00 $data01 $data02
 sql use test
 
 sql create table t1(ts timestamp, a int, b int , c int, d double, id int);
-sql create stream streams1 trigger at_once  into streamt1 as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(a)  c4, min(c) c5, max(id) c from t1 state_window(a);
+sql create stream streams1 trigger at_once  into streamt1 as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(a)  c4, min(c) c5, max(id) c from t1 state_window(a);
 
 sql insert into t1 values(1648791213000,1,2,3,1.0,1);
 sql insert into t1 values(1648791213000,1,2,3,1.0,2);
@@ -54,7 +54,7 @@ sql insert into t1 values(1648791213000,1,2,3,1.0,5);
 sql insert into t1 values(1648791214000,1,2,3,1.0,6);
 $loop_count = 0
 loop1:
-sql select * from streamt1 where c >=4 order by `_wstartts`;
+sql select * from streamt1 where c >=4 order by `_wstart`;
 sleep 300
 $loop_count = $loop_count + 1
 if $loop_count == 10 then
@@ -163,7 +163,7 @@ sql insert into t1 values(1648791213011,1,2,3,1.0,7);
 
 $loop_count = 0
 loop2:
-sql select * from streamt1 where c in (5,4,7) order by `_wstartts`;
+sql select * from streamt1 where c in (5,4,7) order by `_wstart`;
 sleep 300
 $loop_count = $loop_count + 1
 if $loop_count == 10 then
@@ -207,7 +207,7 @@ sql insert into t1 values(1648791213011,1,2,3,1.0,8);
 
 $loop_count = 0
 loop21:
-sql select * from streamt1 where c in (5,4,8) order by `_wstartts`;
+sql select * from streamt1 where c in (5,4,8) order by `_wstart`;
 sleep 300
 $loop_count = $loop_count + 1
 if $loop_count == 10 then
@@ -227,7 +227,7 @@ sql insert into t1 values(1648791213011,10,20,10,10.0,12);
 
 $loop_count = 0
 loop3:
-sql select * from streamt1 where c in (5,4,10,11,12) order by `_wstartts`;
+sql select * from streamt1 where c in (5,4,10,11,12) order by `_wstart`;
 sleep 300
 $loop_count = $loop_count + 1
 if $loop_count == 10 then
@@ -339,7 +339,7 @@ sql insert into t1 values(1648791213030,3,14,14,14.0,15) (1648791214020,15,15,15
 
 $loop_count = 0
 loop4:
-sql select * from streamt1 where c in (14,15,16) order by `_wstartts`;
+sql select * from streamt1 where c in (14,15,16) order by `_wstart`;
 sleep 300
 
 $loop_count = $loop_count + 1
@@ -457,7 +457,7 @@ print $data00 $data01 $data02
 sql use test1
 
 sql create table t1(ts timestamp, a int, b int , c int, d double, id int);
-sql create stream streams2 trigger at_once  into streamt1 as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(a)  c4, min(c) c5, max(id) c from t1 state_window(a);
+sql create stream streams2 trigger at_once  into streamt1 as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(a)  c4, min(c) c5, max(id) c from t1 state_window(a);
 
 sql insert into t1 values(1648791212000,2,2,3,1.0,1);
 sql insert into t1 values(1648791213000,1,2,3,1.0,1);

tests/script/tsim/stream/triggerInterval0.sim

@@ -15,7 +15,7 @@ print $data00 $data01 $data02
 
 sql use test
 sql create table t1(ts timestamp, a int, b int , c int, d double);
-sql create stream streams1 trigger window_close  into streamt as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from t1 interval(10s);
+sql create stream streams1 trigger window_close  into streamt as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from t1 interval(10s);
 
 sql insert into t1 values(1648791213001,1,2,3,1.0);
 sleep 300

tests/script/tsim/stream/triggerSession0.sim

@@ -15,7 +15,7 @@ print $data00 $data01 $data02
 
 sql use test
 sql create table t2(ts timestamp, a int, b int , c int, d double);
-sql create stream streams2 trigger window_close into streamt2 as select  _wstartts, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from t2 session(ts, 10s);
+sql create stream streams2 trigger window_close into streamt2 as select  _wstart, count(*) c1, count(d) c2 , sum(a) c3 , max(b)  c4, min(c) c5 from t2 session(ts, 10s);
 
 sql insert into t2 values(1648791213000,1,2,3,1.0);
 sql insert into t2 values(1648791222999,1,2,3,1.0);

tests/script/tsim/stream/windowClose.sim

@@ -18,7 +18,7 @@ sql create stable st(ts timestamp, a int) tags(t int);
 sql create table tu1 using st tags(1);
 sql create table tu2 using st tags(2);
 
-sql create stream stream1 trigger window_close into streamt as select  _wstartts, sum(a) from st interval(10s);
+sql create stream stream1 trigger window_close into streamt as select  _wstart, sum(a) from st interval(10s);
 
 sql insert into tu1 values(now, 1);
 

tests/script/tsim/vnode/stable_dnode2.sim

@@ -109,20 +109,20 @@ if $data00 != $rowNum then
 endi
 
 print =============== step5
-sql select _wstartts, count(tbcol) as b from $tb interval(1m)
+sql select _wstart, count(tbcol) as b from $tb interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $tb interval(1d)
+sql select _wstart, count(tbcol) as b from $tb interval(1d)
 print ===> $data01
 if $data01 != $rowNum then 
   return -1
 endi
 
 print =============== step6
-sql select _wstartts, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
+sql select _wstart, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
@@ -164,13 +164,13 @@ if $data00 != 25 then
 endi
 
 print =============== step9
-sql select _wstartts, count(tbcol) as b from $mt interval(1m)
+sql select _wstart, count(tbcol) as b from $mt interval(1m)
 print ===> $data01
 if $data01 != 10 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $mt interval(1d)
+sql select _wstart, count(tbcol) as b from $mt interval(1d)
 print ===> $data01
 if $data01 != 200 then 
   return -1

tests/script/tsim/vnode/stable_dnode2_stop.sim

@@ -138,13 +138,13 @@ if $data00 != 25 then
 endi
 
 print =============== step4
-sql select _wstartts, count(tbcol) as b from $mt interval(1m)
+sql select _wstart, count(tbcol) as b from $mt interval(1m)
 print ===> $data01
 if $data01 != 10 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $mt interval(1d)
+sql select _wstart, count(tbcol) as b from $mt interval(1d)
 print ===> $data01
 if $data01 != 200 then 
   return -1

tests/script/tsim/vnode/stable_dnode3.sim

@@ -111,20 +111,20 @@ if $data00 != $rowNum then
 endi
 
 print =============== step5
-sql select _wstartts, count(tbcol) as b from $tb interval(1m)
+sql select _wstart, count(tbcol) as b from $tb interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $tb interval(1d)
+sql select _wstart, count(tbcol) as b from $tb interval(1d)
 print ===> $data01
 if $data01 != $rowNum then 
   return -1
 endi
 
 print =============== step6
-sql select _wstartts, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
+sql select _wstart, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
@@ -166,13 +166,13 @@ if $data00 != 25 then
 endi
 
 print =============== step9
-sql select _wstartts, count(tbcol) as b from $mt interval(1m)
+sql select _wstart, count(tbcol) as b from $mt interval(1m)
 print ===> $data01
 if $data01 != 10 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $mt interval(1d)
+sql select _wstart, count(tbcol) as b from $mt interval(1d)
 print ===> $data01
 if $data01 != 200 then 
   return -1

tests/script/tsim/vnode/stable_replica3_dnode6.sim

@@ -140,20 +140,20 @@ if $data00 != $rowNum then
 endi
 
 print =============== step5
-sql select _wstartts, count(tbcol) as b from $tb interval(1m)
+sql select _wstart, count(tbcol) as b from $tb interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $tb interval(1d)
+sql select _wstart, count(tbcol) as b from $tb interval(1d)
 print ===> $data01
 if $data01 != $rowNum then 
   return -1
 endi
 
 print =============== step6
-sql select _wstartts, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
+sql select _wstart, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
@@ -195,13 +195,13 @@ if $data00 != 25 then
 endi
 
 print =============== step9
-#sql select _wstartts, count(tbcol) as b from $mt interval(1m)
+#sql select _wstart, count(tbcol) as b from $mt interval(1m)
 #print ===> $data01
 #if $data01 != 10 then 
 # return -1
 #endi
 
-sql select _wstartts, count(tbcol) as b from $mt interval(1d)
+sql select _wstart, count(tbcol) as b from $mt interval(1d)
 print ===> $data01
 if $data01 != 200 then 
   return -1

tests/script/tsim/vnode/stable_replica3_vnode3.sim

@@ -124,20 +124,20 @@ if $data00 != $rowNum then
 endi
 
 print =============== step5
-sql select _wstartts, count(tbcol) as b from $tb interval(1m)
+sql select _wstart, count(tbcol) as b from $tb interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $tb interval(1d)
+sql select _wstart, count(tbcol) as b from $tb interval(1d)
 print ===> $data01
 if $data01 != $rowNum then 
   return -1
 endi
 
 print =============== step6
-sql select _wstartts, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
+sql select _wstart, count(tbcol) as b from $tb where ts <= 1519833840000 interval(1m)
 print ===> $data01
 if $data01 != 1 then 
   return -1
@@ -180,13 +180,13 @@ if $data00 != 25 then
 endi
 
 print =============== step9
-sql select _wstartts, count(tbcol) as b from $mt interval(1m)
+sql select _wstart, count(tbcol) as b from $mt interval(1m)
 print ===> $data01
 if $data01 != 10 then 
   return -1
 endi
 
-sql select _wstartts, count(tbcol) as b from $mt interval(1d)
+sql select _wstart, count(tbcol) as b from $mt interval(1d)
 print ===> $data01
 if $data01 != 200 then 
   return -1