fix(query): set correct fill output object.

include/libs/function/functionMgt.h

@@ -34,7 +34,6 @@ typedef enum EFunctionType {
   FUNCTION_TYPE_ELAPSED,
   FUNCTION_TYPE_IRATE,
   FUNCTION_TYPE_LAST_ROW,
-  FUNCTION_TYPE_LAST_ROWT,  // TODO: removed
   FUNCTION_TYPE_MAX,
   FUNCTION_TYPE_MIN,
   FUNCTION_TYPE_MODE,

source/dnode/vnode/src/tsdb/tsdbRead.c

@@ -3127,14 +3127,11 @@ int32_t tsdbGetFileBlocksDistInfo(STsdbReader* pReader, STableBlockDistInfo* pTa
       }
 
       pTableBlockInfo->numOfBlocks += pBlockIter->numOfBlocks;
+      hasNext = (pBlockIter->numOfBlocks > 0);
     }
 
-    /*
-        hasNext = blockIteratorNext(&pStatus->blockIter);
-    */
-
-    //         tsdbDebug("%p %d blocks found in file for %d table(s), fid:%d, %s", pReader, numOfBlocks, numOfTables,
-    //                   pReader->pFileGroup->fid, pReader->idStr);
+//    tsdbDebug("%p %d blocks found in file for %d table(s), fid:%d, %s", pReader, numOfBlocks, numOfTables,
+//              pReader->pFileGroup->fid, pReader->idStr);
   }
 
   return code;

source/libs/executor/src/executorimpl.c

@@ -3409,8 +3409,8 @@ static SSDataBlock* doFillImpl(SOperatorInfo* pOperator) {
 
     blockDataEnsureCapacity(pResBlock, pOperator->resultInfo.capacity);
 
-    int32_t numOfResultRows = pOperator->resultInfo.capacity - pBlock->info.rows;
-    taosFillResultDataBlock(pInfo->pFillInfo, pBlock, numOfResultRows);
+    int32_t numOfResultRows = pOperator->resultInfo.capacity - pResBlock->info.rows;
+    taosFillResultDataBlock(pInfo->pFillInfo, pResBlock, numOfResultRows);
 
     // current group has no more result to return
     if (pResBlock->info.rows > 0) {
@@ -4423,6 +4423,8 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
         cond.twindows = (STimeWindow){.skey = INT64_MIN, .ekey = INT64_MAX};
         cond.suid = pBlockNode->suid;
         cond.type = BLOCK_LOAD_OFFSET_ORDER;
+        cond.startVersion = -1;
+        cond.endVersion  =  -1;
       }
 
       STsdbReader* pReader = NULL;

source/libs/function/inc/builtinsimpl.h

@@ -106,7 +106,7 @@ bool irateFuncSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResInfo);
 int32_t irateFunction(SqlFunctionCtx *pCtx);
 int32_t irateFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
-int32_t lastrowFunction(SqlFunctionCtx* pCtx);
+int32_t cacheLastRowFunction(SqlFunctionCtx* pCtx);
 
 bool getFirstLastFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 int32_t firstFunction(SqlFunctionCtx *pCtx);
@@ -120,7 +120,6 @@ int32_t lastCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
 int32_t getFirstLastInfoSize(int32_t resBytes);
 
 int32_t lastRowFunction(SqlFunctionCtx *pCtx);
-int32_t lastRowFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
 bool getTopBotFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv);
 bool getTopBotMergeFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv);

source/libs/function/src/builtins.c

@@ -1370,11 +1370,6 @@ static int32_t translateTail(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
   return TSDB_CODE_SUCCESS;
 }
 
-static int32_t translateLastRow(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
-  // todo
-  return TSDB_CODE_SUCCESS;
-}
-
 static int32_t translateDerivative(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
   if (3 != LIST_LENGTH(pFunc->pParameterList)) {
     return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
@@ -2221,7 +2216,17 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .translateFunc = translateFirstLast,
     .getEnvFunc   = getFirstLastFuncEnv,
     .initFunc     = functionSetup,
-    .processFunc  = lastrowFunction,
+    .processFunc  = lastRowFunction,
+    .finalizeFunc = firstLastFinalize
+  },
+  {
+    .name = "_cache_last_row",
+    .type = FUNCTION_TYPE_CACHE_LAST_ROW,
+    .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_MULTI_RES_FUNC | FUNC_MGT_TIMELINE_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC,
+    .translateFunc = translateFirstLast,
+    .getEnvFunc   = getFirstLastFuncEnv,
+    .initFunc     = functionSetup,
+    .processFunc  = cacheLastRowFunction,
     .finalizeFunc = firstLastFinalize
   },
   {

source/libs/function/src/builtinsimpl.c

@@ -5993,7 +5993,7 @@ int32_t interpFunction(SqlFunctionCtx* pCtx) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t lastrowFunction(SqlFunctionCtx* pCtx) {
+int32_t cacheLastRowFunction(SqlFunctionCtx* pCtx) {
   int32_t numOfElems = 0;
 
   SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);

tests/script/tsim/compute/interval.sim

@@ -103,7 +103,8 @@ $ms2 = 1601481600000 - $cc
 
 sql select count(tbcol), avg(tbcol), max(tbcol), min(tbcol), count(tbcol) from $tb  where ts <= $ms and ts > $ms2 interval(1m) fill(value,0)
 print ===> $rows
-if $rows < 30 then 
+if $rows < 30 then
+  print expect greater than 30, actual: $rows
   return -1
 endi
 if $rows > 50 then