fix(query): handle crash of taosd caused by a complex expression in GROUP BY clauses.

include/common/tcommon.h

@@ -222,7 +222,7 @@ typedef struct SFunctParam {
 // the structure for sql function in select clause
 typedef struct SResSchame {
   int8_t  type;
-  int32_t colId;
+  int32_t slotId;
   int32_t bytes;
   int32_t precision;
   int32_t scale;

source/libs/executor/inc/executorimpl.h

@@ -411,7 +411,7 @@ typedef struct STableScanInfo {
   SResultRowInfo* pResultRowInfo;
   int32_t*        rowCellInfoOffset;
   SExprInfo*      pExpr;
-  SSDataBlock     block;
+  SSDataBlock*    pResBlock;
   SArray*         pColMatchInfo;
   int32_t         numOfOutput;
   int64_t         elapsedTime;
@@ -569,6 +569,9 @@ typedef struct SGroupbyOperatorInfo {
   int32_t        groupKeyLen;   // total group by column width
   SGroupResInfo  groupResInfo;
   SAggSupporter  aggSup;
+  SExprInfo*     pScalarExprInfo;
+  int32_t        numOfScalarExpr;// the number of scalar expression in group operator
+  SqlFunctionCtx*pScalarFuncCtx;
 } SGroupbyOperatorInfo;
 
 typedef struct SDataGroupInfo {
@@ -674,7 +677,7 @@ void operatorDummyCloseFn(void* param, int32_t numOfCols);
 int32_t appendDownstream(SOperatorInfo* p, SOperatorInfo** pDownstream, int32_t num);
 int32_t initAggInfo(SOptrBasicInfo* pBasicInfo, SAggSupporter* pAggSup, SExprInfo* pExprInfo, int32_t numOfCols,
                     int32_t numOfRows, SSDataBlock* pResultBlock, size_t keyBufSize, const char* pkey);
-void toSDatablock(SGroupResInfo* pGroupResInfo, SDiskbasedBuf* pBuf, SSDataBlock* pBlock, int32_t rowCapacity, int32_t* rowCellOffset);
+void toSDatablock(SSDataBlock* pBlock, int32_t rowCapacity, SGroupResInfo* pGroupResInfo, SExprInfo* pExprInfo, SDiskbasedBuf* pBuf, int32_t* rowCellOffset);
 void finalizeMultiTupleQueryResult(SqlFunctionCtx* pCtx, int32_t numOfOutput, SDiskbasedBuf* pBuf, SResultRowInfo* pResultRowInfo, int32_t* rowCellInfoOffset);
 void doApplyFunctions(SqlFunctionCtx* pCtx, STimeWindow* pWin, SColumnInfoData* pTimeWindowData, int32_t offset, int32_t forwardStep, TSKEY* tsCol, int32_t numOfTotal, int32_t numOfOutput, int32_t order);
 int32_t setGroupResultOutputBuf_rv(SOptrBasicInfo* binfo, int32_t numOfCols, char* pData, int16_t type,
@@ -685,12 +688,11 @@ int32_t setSDataBlockFromFetchRsp(SSDataBlock* pRes, SLoadRemoteDataInfo* pLoadI
                                          uint64_t* total, SArray* pColList);
 void doSetOperatorCompleted(SOperatorInfo* pOperator);
 void doFilter(const SNode* pFilterNode, SSDataBlock* pBlock);
-SSDataBlock* getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity);
-SSDataBlock* loadNextDataBlock(void* param);
+SqlFunctionCtx* createSqlFunctionCtx(SExprInfo* pExprInfo, int32_t numOfOutput, int32_t** rowCellInfoOffset);
 
 SOperatorInfo* createExchangeOperatorInfo(const SNodeList* pSources, SSDataBlock* pBlock, SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createTableScanOperatorInfo(void* pTsdbReadHandle, int32_t order, int32_t numOfCols, int32_t repeatTime,
-                                           int32_t reverseTime, SArray* pColMatchInfo, SNode* pCondition, SExecTaskInfo* pTaskInfo);
+                                           int32_t reverseTime, SArray* pColMatchInfo, SSDataBlock* pResBlock, SNode* pCondition, SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createAggregateOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResultBlock,
                                            SExecTaskInfo* pTaskInfo, const STableGroupInfo* pTableGroupInfo);
 SOperatorInfo* createMultiTableAggOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResBlock, SExecTaskInfo* pTaskInfo, const STableGroupInfo* pTableGroupInfo);
@@ -704,8 +706,8 @@ SOperatorInfo* createSysTableScanOperatorInfo(void* pSysTableReadHandle, SSDataB
 SOperatorInfo* createIntervalOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResBlock, SInterval* pInterval, int32_t primaryTsSlot,
                                           const STableGroupInfo* pTableGroupInfo, SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createSessionAggOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResBlock, int64_t gap, SExecTaskInfo* pTaskInfo);
-SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResultBlock,
-                                       SArray* pGroupColList, SNode* pCondition, SExecTaskInfo* pTaskInfo, const STableGroupInfo* pTableGroupInfo);
+SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResultBlock, SArray* pGroupColList,
+                                       SNode* pCondition, SExprInfo* pScalarExprInfo, int32_t numOfScalarExpr, SExecTaskInfo* pTaskInfo, const STableGroupInfo* pTableGroupInfo);
 SOperatorInfo* createDataBlockInfoScanOperator(void* dataReader, SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createStreamScanOperatorInfo(void* streamReadHandle, SSDataBlock* pResBlock, SArray* pColList, SArray* pTableIdList, SExecTaskInfo* pTaskInfo);
 
@@ -729,6 +731,8 @@ SOperatorInfo* createJoinOperatorInfo(SOperatorInfo** pdownstream, int32_t numOf
                                       int32_t numOfOutput);
 #endif
 
+void projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBlock* pSrcBlock, SqlFunctionCtx* pCtx, int32_t numOfOutput, SArray* pPseudoList);
+
 void setInputDataBlock(SOperatorInfo* pOperator, SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t order);
 
 void finalizeQueryResult(SqlFunctionCtx* pCtx, int32_t numOfOutput);

source/libs/executor/src/groupoperator.c

@@ -265,7 +265,7 @@ static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator, bool* newgrou
   SSDataBlock* pRes = pInfo->binfo.pRes;
 
   if (pOperator->status == OP_RES_TO_RETURN) {
-    toSDatablock(&pInfo->groupResInfo, pInfo->aggSup.pResultBuf, pRes, pInfo->binfo.capacity, pInfo->binfo.rowCellInfoOffset);
+    toSDatablock(pRes, pInfo->binfo.capacity, &pInfo->groupResInfo, pOperator->pExpr, pInfo->aggSup.pResultBuf, pInfo->binfo.rowCellInfoOffset);
     if (pRes->info.rows == 0 || !hasRemainDataInCurrentGroup(&pInfo->groupResInfo)) {
       pOperator->status = OP_EXEC_DONE;
     }
@@ -285,6 +285,12 @@ static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator, bool* newgrou
 
     // the pDataBlock are always the same one, no need to call this again
     setInputDataBlock(pOperator, pInfo->binfo.pCtx, pBlock, order);
+
+    // there is an scalar expression that needs to be calculated before apply the group aggregation.
+    if (pInfo->pScalarExprInfo != NULL) {
+      projectApplyFunctions(pInfo->pScalarExprInfo, pBlock, pBlock, pInfo->pScalarFuncCtx, pInfo->numOfScalarExpr, NULL);
+    }
+
     //    setTagValue(pOperator, pRuntimeEnv->current->pTable, pInfo->binfo.pCtx, pOperator->numOfOutput);
     doHashGroupbyAgg(pOperator, pBlock);
   }
@@ -305,7 +311,7 @@ static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator, bool* newgrou
   initGroupResInfo(&pInfo->groupResInfo, &pInfo->binfo.resultRowInfo);
 
   while(1) {
-    toSDatablock(&pInfo->groupResInfo, pInfo->aggSup.pResultBuf, pRes, pInfo->binfo.capacity, pInfo->binfo.rowCellInfoOffset);
+    toSDatablock(pRes, pInfo->binfo.capacity, &pInfo->groupResInfo, pOperator->pExpr, pInfo->aggSup.pResultBuf, pInfo->binfo.rowCellInfoOffset);
     doFilter(pInfo->pCondition, pRes);
 
     bool hasRemain = hasRemainDataInCurrentGroup(&pInfo->groupResInfo);
@@ -322,16 +328,21 @@ static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator, bool* newgrou
   return (pRes->info.rows == 0)? NULL:pRes;
 }
 
-SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResultBlock, SArray* pGroupColList, SNode* pCondition, SExecTaskInfo* pTaskInfo,
-                                       const STableGroupInfo* pTableGroupInfo) {
+SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResultBlock, SArray* pGroupColList,
+    SNode* pCondition, SExprInfo* pScalarExprInfo, int32_t numOfScalarExpr, SExecTaskInfo* pTaskInfo, const STableGroupInfo* pTableGroupInfo) {
   SGroupbyOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SGroupbyOperatorInfo));
   SOperatorInfo*        pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
   if (pInfo == NULL || pOperator == NULL) {
     goto _error;
   }
 
-  pInfo->pGroupCols = pGroupColList;
-  pInfo->pCondition = pCondition;
+  pInfo->pGroupCols      = pGroupColList;
+  pInfo->pCondition      = pCondition;
+
+  pInfo->pScalarExprInfo = pScalarExprInfo;
+  pInfo->numOfScalarExpr = numOfScalarExpr;
+  pInfo->pScalarFuncCtx = createSqlFunctionCtx(pExprInfo, numOfCols, &pInfo->binfo.rowCellInfoOffset);
+
 
   int32_t code = initGroupOptrInfo(&pInfo->pGroupColVals, &pInfo->groupKeyLen, &pInfo->keyBuf, pGroupColList);
   if (code != TSDB_CODE_SUCCESS) {

source/libs/executor/src/scanoperator.c

@@ -113,7 +113,7 @@ static SSDataBlock* doTableScanImpl(SOperatorInfo* pOperator, bool* newgroup) {
   STableScanInfo* pTableScanInfo = pOperator->info;
   SExecTaskInfo*  pTaskInfo = pOperator->pTaskInfo;
 
-  SSDataBlock*     pBlock = &pTableScanInfo->block;
+  SSDataBlock*     pBlock = pTableScanInfo->pResBlock;
   STableGroupInfo* pTableGroupInfo = &pOperator->pTaskInfo->tableqinfoGroupInfo;
 
   *newgroup = false;
@@ -218,7 +218,7 @@ static SSDataBlock* doTableScan(SOperatorInfo* pOperator, bool* newgroup) {
 }
 
 SOperatorInfo* createTableScanOperatorInfo(void* pTsdbReadHandle, int32_t order, int32_t numOfOutput,
-                                           int32_t repeatTime, int32_t reverseTime, SArray* pColMatchInfo,
+                                           int32_t repeatTime, int32_t reverseTime, SArray* pColMatchInfo, SSDataBlock* pResBlock,
                                            SNode* pCondition, SExecTaskInfo* pTaskInfo) {
   assert(repeatTime > 0);
 
@@ -232,12 +232,7 @@ SOperatorInfo* createTableScanOperatorInfo(void* pTsdbReadHandle, int32_t order,
     return NULL;
   }
 
-  pInfo->block.pDataBlock = taosArrayInit(numOfOutput, sizeof(SColumnInfoData));
-  for (int32_t i = 0; i < numOfOutput; ++i) {
-    SColumnInfoData idata = {0};
-    taosArrayPush(pInfo->block.pDataBlock, &idata);
-  }
-
+  pInfo->pResBlock        = pResBlock;
   pInfo->pFilterNode      = pCondition;
   pInfo->dataReader       = pTsdbReadHandle;
   pInfo->times            = repeatTime;
@@ -312,7 +307,7 @@ static SSDataBlock* doBlockInfoScan(SOperatorInfo* pOperator, bool* newgroup) {
   tsdbGetFileBlocksDistInfo(pTableScanInfo->dataReader, &tableBlockDist);
   tableBlockDist.numOfRowsInMemTable = (int32_t) tsdbGetNumOfRowsInMemTable(pTableScanInfo->dataReader);
 
-  SSDataBlock* pBlock = &pTableScanInfo->block;
+  SSDataBlock* pBlock = pTableScanInfo->pResBlock;
   pBlock->info.rows   = 1;
   pBlock->info.numOfCols = 1;
 
@@ -343,13 +338,13 @@ SOperatorInfo* createDataBlockInfoScanOperator(void* dataReader, SExecTaskInfo*
   }
 
   pInfo->dataReader       = dataReader;
-  pInfo->block.pDataBlock = taosArrayInit(1, sizeof(SColumnInfoData));
+//  pInfo->block.pDataBlock = taosArrayInit(1, sizeof(SColumnInfoData));
 
   SColumnInfoData infoData = {0};
   infoData.info.type  = TSDB_DATA_TYPE_BINARY;
   infoData.info.bytes = 1024;
   infoData.info.colId = 0;
-  taosArrayPush(pInfo->block.pDataBlock, &infoData);
+//  taosArrayPush(pInfo->block.pDataBlock, &infoData);
 
   pOperator->name          = "DataBlockInfoScanOperator";
   //  pOperator->operatorType = OP_TableBlockInfoScan;

source/libs/function/src/tfill.c

@@ -541,7 +541,7 @@ struct SFillColInfo* createFillColInfo(SExprInfo* pExpr, int32_t numOfOutput, co
     pFillCol[i].col.bytes  = pExprInfo->base.resSchema.bytes;
     pFillCol[i].col.type   = (int8_t)pExprInfo->base.resSchema.type;
     pFillCol[i].col.offset = offset;
-    pFillCol[i].col.colId  = pExprInfo->base.resSchema.colId;
+    pFillCol[i].col.colId  = pExprInfo->base.resSchema.slotId;
     pFillCol[i].tagIndex   = -2;
     pFillCol[i].flag       = pExprInfo->base.pParam[0].pCol->flag;    // always be the normal column for table query
 //    pFillCol[i].functionId = pExprInfo->pExpr->_function.functionId;