feat: prepare for multiple group tsdb reads

source/dnode/vnode/inc/vnode.h

@@ -195,6 +195,7 @@ struct SVnodeCfg {
 typedef struct {
   TSKEY    lastKey;
   uint64_t uid;
+  uint64_t groupId;
 } STableKeyInfo;
 
 struct SMetaEntry {

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

@@ -2845,7 +2845,7 @@ int32_t tsdbGetAllTableList(SMeta* pMeta, uint64_t uid, SArray* list) {
       break;
     }
 
-    STableKeyInfo info = {.lastKey = TSKEY_INITIAL_VAL, uid = id};
+    STableKeyInfo info = {.lastKey = TSKEY_INITIAL_VAL, uid = id, .groupId = 0};
     taosArrayPush(list, &info);
   }
 

source/libs/executor/inc/executorimpl.h

@@ -834,14 +834,19 @@ int32_t finalizeResultRowIntoResultDataBlock(SDiskbasedBuf* pBuf, SResultRowPosi
                                        SqlFunctionCtx* pCtx, SExprInfo* pExprInfo, int32_t numOfExprs, const int32_t* rowCellOffset,
                                        SSDataBlock* pBlock, SExecTaskInfo* pTaskInfo);
 
-int32_t createMultipleDataReaders(STableScanPhysiNode* pTableScanNode, SReadHandle* pHandle,
+int32_t createScanTableListInfo(STableScanPhysiNode* pTableScanNode, SReadHandle* pHandle,
+                                STableListInfo* pTableListInfo, uint64_t queryId, uint64_t taskId,
+                                SNode* pTagCond);
+int32_t doCreateMultipleDataReaders(STableScanPhysiNode* pTableScanNode, SReadHandle* pHandle,
                                   STableListInfo* pTableListInfo, SArray* arrayReader, uint64_t queryId,
-                                  uint64_t taskId, SNode* pTagCond);
+                                  uint64_t taskId);
 SOperatorInfo* createTableMergeScanOperatorInfo(STableScanPhysiNode* pTableScanNode, SArray* dataReaders,
                                                 SReadHandle* readHandle, SExecTaskInfo* pTaskInfo);
 
 void copyUpdateDataBlock(SSDataBlock* pDest, SSDataBlock* pSource, int32_t tsColIndex);
 
+int32_t generateGroupIdMap(STableListInfo* pTableListInfo, SReadHandle* pHandle, SArray* groupKey);
+
 #ifdef __cplusplus
 }
 #endif

source/libs/executor/src/executil.c

@@ -239,7 +239,7 @@ int32_t getTableList(void* metaHandle, SScanPhysiNode* pScanNode, STableListInfo
       }
 
       for (int i = 0; i < taosArrayGetSize(res); i++) {
-        STableKeyInfo info = {.lastKey = TSKEY_INITIAL_VAL, .uid = *(uint64_t*)taosArrayGet(res, i)};
+        STableKeyInfo info = {.lastKey = TSKEY_INITIAL_VAL, .uid = *(uint64_t*)taosArrayGet(res, i), .groupId = 0};
         taosArrayPush(pListInfo->pTableList, &info);
       }
       taosArrayDestroy(res);
@@ -247,7 +247,7 @@ int32_t getTableList(void* metaHandle, SScanPhysiNode* pScanNode, STableListInfo
       code = tsdbGetAllTableList(metaHandle, tableUid, pListInfo->pTableList);
     }
   } else {  // Create one table group.
-    STableKeyInfo info = {.lastKey = 0, .uid = tableUid};
+    STableKeyInfo info = {.lastKey = 0, .uid = tableUid, .groupId = 0};
     taosArrayPush(pListInfo->pTableList, &info);
   }
 

source/libs/executor/src/executorimpl.c

@@ -3968,14 +3968,16 @@ int32_t generateGroupIdMap(STableListInfo* pTableListInfo, SReadHandle* pHandle,
         }
       }
     }
-
     int32_t   len = (int32_t)(pStart - (char*)keyBuf);
-    uint64_t* groupId = taosHashGet(pTableListInfo->map, keyBuf, len);
-    if (groupId) {
-      taosHashPut(pTableListInfo->map, &(info->uid), sizeof(uint64_t), groupId, sizeof(uint64_t));
-    } else {
+
+    uint64_t* pGroupId = taosHashGet(pTableListInfo->map, keyBuf, len);
+
+    if (!pGroupId) {
       uint64_t tmpId = calcGroupId(keyBuf, len);
+      info->groupId = tmpId;
       taosHashPut(pTableListInfo->map, &(info->uid), sizeof(uint64_t), &tmpId, sizeof(uint64_t));
+    } else {
+      info->groupId = *pGroupId;
     }
 
     metaReaderClear(&mr);
@@ -4023,11 +4025,11 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       STableMergeScanPhysiNode* pTableScanNode = (STableMergeScanPhysiNode*)pPhyNode;
 
       SArray* dataReaders = taosArrayInit(8, POINTER_BYTES);
-      createMultipleDataReaders(pTableScanNode, pHandle, pTableListInfo, dataReaders, queryId, taskId, pTagCond);
+      createScanTableListInfo(pTableScanNode, pHandle, pTableListInfo, queryId, taskId, pTagCond);
+      doCreateMultipleDataReaders(pTableScanNode, pHandle, pTableListInfo, dataReaders, queryId, taskId);
+
       extractTableSchemaVersion(pHandle, pTableScanNode->scan.uid, pTaskInfo);
-      SArray* groupKeys = extractPartitionColInfo(pTableScanNode->pPartitionTags);
-      generateGroupIdMap(pTableListInfo, pHandle, groupKeys);  // todo for json
-      taosArrayDestroy(groupKeys);
+
       SOperatorInfo*  pOperator = createTableMergeScanOperatorInfo(pTableScanNode, dataReaders, pHandle, pTaskInfo);
       STableScanInfo* pScanInfo = pOperator->info;
       pTaskInfo->cost.pRecoder = &pScanInfo->readRecorder;

source/libs/executor/src/scanoperator.c

@@ -591,12 +591,12 @@ SOperatorInfo* createTableSeqScanOperatorInfo(void* pReadHandle, SExecTaskInfo*
   pInfo->dataReader = pReadHandle;
   //  pInfo->prevGroupId       = -1;
 
-  pOperator->name         = "TableSeqScanOperator";
+  pOperator->name = "TableSeqScanOperator";
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_TABLE_SEQ_SCAN;
-  pOperator->blocking     = false;
-  pOperator->status       = OP_NOT_OPENED;
-  pOperator->info         = pInfo;
-  pOperator->pTaskInfo    = pTaskInfo;
+  pOperator->blocking = false;
+  pOperator->status = OP_NOT_OPENED;
+  pOperator->info = pInfo;
+  pOperator->pTaskInfo = pTaskInfo;
 
   pOperator->fpSet = createOperatorFpSet(operatorDummyOpenFn, doTableScanImpl, NULL, NULL, NULL, NULL, NULL, NULL);
   return pOperator;
@@ -610,7 +610,7 @@ static int32_t doGetTableRowSize(void* pMeta, uint64_t uid) {
   metaGetTableEntryByUid(&mr, uid);
   if (mr.me.type == TSDB_SUPER_TABLE) {
     int32_t numOfCols = mr.me.stbEntry.schemaRow.nCols;
-    for(int32_t i = 0; i < numOfCols; ++i) {
+    for (int32_t i = 0; i < numOfCols; ++i) {
       rowLen += mr.me.stbEntry.schemaRow.pSchema[i].bytes;
     }
   } else if (mr.me.type == TSDB_CHILD_TABLE) {
@@ -618,12 +618,12 @@ static int32_t doGetTableRowSize(void* pMeta, uint64_t uid) {
     metaGetTableEntryByUid(&mr, suid);
     int32_t numOfCols = mr.me.stbEntry.schemaRow.nCols;
 
-    for(int32_t i = 0; i < numOfCols; ++i) {
+    for (int32_t i = 0; i < numOfCols; ++i) {
       rowLen += mr.me.stbEntry.schemaRow.pSchema[i].bytes;
     }
   } else if (mr.me.type == TSDB_NORMAL_TABLE) {
     int32_t numOfCols = mr.me.ntbEntry.schemaRow.nCols;
-    for(int32_t i = 0; i < numOfCols; ++i) {
+    for (int32_t i = 0; i < numOfCols; ++i) {
       rowLen += mr.me.ntbEntry.schemaRow.pSchema[i].bytes;
     }
   }
@@ -647,7 +647,7 @@ static SSDataBlock* doBlockInfoScan(SOperatorInfo* pOperator) {
 
   SSDataBlock* pBlock = pBlockScanInfo->pResBlock;
 
-  int32_t slotId = pOperator->exprSupp.pExprInfo->base.resSchema.slotId;
+  int32_t          slotId = pOperator->exprSupp.pExprInfo->base.resSchema.slotId;
   SColumnInfoData* pColInfo = taosArrayGet(pBlock->pDataBlock, slotId);
 
   int32_t len = tSerializeBlockDistInfo(NULL, 0, &blockDistInfo);
@@ -679,23 +679,23 @@ SOperatorInfo* createDataBlockInfoScanOperator(void* dataReader, SReadHandle* re
     goto _error;
   }
 
-  pInfo->pHandle    = dataReader;
+  pInfo->pHandle = dataReader;
   pInfo->readHandle = *readHandle;
-  pInfo->uid        = uid;
-  pInfo->pResBlock  = createResDataBlock(pBlockScanNode->node.pOutputDataBlockDesc);
+  pInfo->uid = uid;
+  pInfo->pResBlock = createResDataBlock(pBlockScanNode->node.pOutputDataBlockDesc);
 
-  int32_t numOfCols = 0;
+  int32_t    numOfCols = 0;
   SExprInfo* pExprInfo = createExprInfo(pBlockScanNode->pScanPseudoCols, NULL, &numOfCols);
-  int32_t code = initExprSupp(&pOperator->exprSupp, pExprInfo, numOfCols);
+  int32_t    code = initExprSupp(&pOperator->exprSupp, pExprInfo, numOfCols);
   if (code != TSDB_CODE_SUCCESS) {
     goto _error;
   }
 
-  pOperator->name      = "DataBlockDistScanOperator";
+  pOperator->name = "DataBlockDistScanOperator";
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_BLOCK_DIST_SCAN;
-  pOperator->blocking  = false;
-  pOperator->status    = OP_NOT_OPENED;
-  pOperator->info      = pInfo;
+  pOperator->blocking = false;
+  pOperator->status = OP_NOT_OPENED;
+  pOperator->info = pInfo;
   pOperator->pTaskInfo = pTaskInfo;
 
   pOperator->fpSet = createOperatorFpSet(operatorDummyOpenFn, doBlockInfoScan, NULL, NULL,
@@ -1872,26 +1872,25 @@ SOperatorInfo* createTagScanOperatorInfo(SReadHandle* pReadHandle, STagScanPhysi
   SExprInfo* pExprInfo = createExprInfo(pPhyNode->pScanPseudoCols, NULL, &numOfExprs);
   SArray*    colList = extractColMatchInfo(pPhyNode->pScanPseudoCols, pDescNode, &num, COL_MATCH_FROM_COL_ID);
 
-
   int32_t code = initExprSupp(&pOperator->exprSupp, pExprInfo, numOfExprs);
   if (code != TSDB_CODE_SUCCESS) {
     goto _error;
   }
 
-  pInfo->pTableList       = pTableListInfo;
-  pInfo->pColMatchInfo    = colList;
-  pInfo->pRes             = createResDataBlock(pDescNode);
-  pInfo->readHandle       = *pReadHandle;
-  pInfo->curPos           = 0;
-  pInfo->pFilterNode      = pPhyNode->node.pConditions;
+  pInfo->pTableList = pTableListInfo;
+  pInfo->pColMatchInfo = colList;
+  pInfo->pRes = createResDataBlock(pDescNode);
+  pInfo->readHandle = *pReadHandle;
+  pInfo->curPos = 0;
+  pInfo->pFilterNode = pPhyNode->node.pConditions;
 
   pOperator->name = "TagScanOperator";
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_TAG_SCAN;
 
-  pOperator->blocking     = false;
-  pOperator->status       = OP_NOT_OPENED;
-  pOperator->info         = pInfo;
-  pOperator->pTaskInfo    = pTaskInfo;
+  pOperator->blocking = false;
+  pOperator->status = OP_NOT_OPENED;
+  pOperator->info = pInfo;
+  pOperator->pTaskInfo = pTaskInfo;
 
   initResultSizeInfo(pOperator, 4096);
   blockDataEnsureCapacity(pInfo->pRes, pOperator->resultInfo.capacity);
@@ -1957,25 +1956,42 @@ typedef struct STableMergeScanInfo {
 
 } STableMergeScanInfo;
 
-int32_t createMultipleDataReaders(STableScanPhysiNode* pTableScanNode, SReadHandle* pHandle,
-                                  STableListInfo* pTableListInfo, SArray* arrayReader, uint64_t queryId,
-                                  uint64_t taskId, SNode* pTagCond) {
+int32_t compareTableKeyInfoByGid(const void* p1, const void* p2) {
+  const STableKeyInfo* info1 = p1;
+  const STableKeyInfo* info2 = p2;
+  return info1->groupId - info2->groupId;
+}
+
+int32_t createScanTableListInfo(STableScanPhysiNode* pTableScanNode, SReadHandle* pHandle,
+                                STableListInfo* pTableListInfo, uint64_t queryId, uint64_t taskId,
+                                SNode* pTagCond) {
   int32_t code = getTableList(pHandle->meta, &pTableScanNode->scan, pTableListInfo, pTagCond);
   if (code != TSDB_CODE_SUCCESS) {
-    goto _error;
+    return code;
   }
 
   if (taosArrayGetSize(pTableListInfo->pTableList) == 0) {
     qDebug("no table qualified for query, TID:0x%" PRIx64 ", QID:0x%" PRIx64, taskId, queryId);
-    goto _error;
+    return TSDB_CODE_SUCCESS;
+  }
+  SArray* groupKeys = extractPartitionColInfo(pTableScanNode->pPartitionTags);
+  generateGroupIdMap(pTableListInfo, pHandle, groupKeys);  // todo for json
+  if (groupKeys) {
+    taosArraySort(pTableListInfo->pTableList, compareTableKeyInfoByGid);
   }
+  taosArrayDestroy(groupKeys);
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t doCreateMultipleDataReaders(STableScanPhysiNode* pTableScanNode, SReadHandle* pHandle,
+                                  STableListInfo* pTableListInfo, SArray* arrayReader, uint64_t queryId,
+                                  uint64_t taskId) {
 
   SQueryTableDataCond cond = {0};
-  code = initQueryTableDataCond(&cond, pTableScanNode);
+  int32_t code = initQueryTableDataCond(&cond, pTableScanNode);
   if (code != TSDB_CODE_SUCCESS) {
     goto _error;
   }
-  // TODO: free the sublist info and the table list in it
   for (int32_t i = 0; i < taosArrayGetSize(pTableListInfo->pTableList); ++i) {
     STableListInfo* subListInfo = taosMemoryCalloc(1, sizeof(subListInfo));
     subListInfo->pTableList = taosArrayInit(1, sizeof(STableKeyInfo));
@@ -1989,7 +2005,7 @@ int32_t createMultipleDataReaders(STableScanPhysiNode* pTableScanNode, SReadHand
   }
   cleanupQueryTableDataCond(&cond);
 
-  return 0;
+  return TSDB_CODE_SUCCESS;
 
 _error:
   return code;