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homework-jianmu/source/libs/executor/src/groupoperator.c

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/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "filter.h"
#include "function.h"
#include "os.h"
#include "tname.h"
#include "tdatablock.h"
#include "tmsg.h"
#include "executorInt.h"
#include "operator.h"
#include "querytask.h"
#include "tcompare.h"
#include "thash.h"
#include "ttypes.h"
typedef struct SGroupbyOperatorInfo {
SOptrBasicInfo binfo;
SAggSupporter aggSup;
SArray* pGroupCols; // group by columns, SArray<SColumn>
SArray* pGroupColVals; // current group column values, SArray<SGroupKeys>
bool isInit; // denote if current val is initialized or not
char* keyBuf; // group by keys for hash
int32_t groupKeyLen; // total group by column width
SGroupResInfo groupResInfo;
SExprSupp scalarSup;
} SGroupbyOperatorInfo;
// The sort in partition may be needed later.
typedef struct SPartitionOperatorInfo {
SOptrBasicInfo binfo;
SArray* pGroupCols;
SArray* pGroupColVals; // current group column values, SArray<SGroupKeys>
char* keyBuf; // group by keys for hash
int32_t groupKeyLen; // total group by column width
SHashObj* pGroupSet; // quick locate the window object for each result
SDiskbasedBuf* pBuf; // query result buffer based on blocked-wised disk file
int32_t rowCapacity; // maximum number of rows for each buffer page
int32_t* columnOffset; // start position for each column data
SArray* sortedGroupArray; // SDataGroupInfo sorted by group id
int32_t groupIndex; // group index
int32_t pageIndex; // page index of current group
SExprSupp scalarSup;
} SPartitionOperatorInfo;
static void* getCurrentDataGroupInfo(const SPartitionOperatorInfo* pInfo, SDataGroupInfo** pGroupInfo, int32_t len);
static int32_t* setupColumnOffset(const SSDataBlock* pBlock, int32_t rowCapacity);
static int32_t setGroupResultOutputBuf(SOperatorInfo* pOperator, SOptrBasicInfo* binfo, int32_t numOfCols, char* pData,
int16_t bytes, uint64_t groupId, SDiskbasedBuf* pBuf, SAggSupporter* pAggSup);
static SArray* extractColumnInfo(SNodeList* pNodeList);
static void freeGroupKey(void* param) {
SGroupKeys* pKey = (SGroupKeys*)param;
taosMemoryFree(pKey->pData);
}
static void destroyGroupOperatorInfo(void* param) {
SGroupbyOperatorInfo* pInfo = (SGroupbyOperatorInfo*)param;
if (pInfo == NULL) {
return;
}
cleanupBasicInfo(&pInfo->binfo);
taosMemoryFreeClear(pInfo->keyBuf);
taosArrayDestroy(pInfo->pGroupCols);
taosArrayDestroyEx(pInfo->pGroupColVals, freeGroupKey);
cleanupExprSupp(&pInfo->scalarSup);
cleanupGroupResInfo(&pInfo->groupResInfo);
cleanupAggSup(&pInfo->aggSup);
taosMemoryFreeClear(param);
}
static int32_t initGroupOptrInfo(SArray** pGroupColVals, int32_t* keyLen, char** keyBuf, const SArray* pGroupColList) {
*pGroupColVals = taosArrayInit(4, sizeof(SGroupKeys));
if ((*pGroupColVals) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
int32_t numOfGroupCols = taosArrayGetSize(pGroupColList);
for (int32_t i = 0; i < numOfGroupCols; ++i) {
SColumn* pCol = (SColumn*)taosArrayGet(pGroupColList, i);
(*keyLen) += pCol->bytes; // actual data + null_flag
SGroupKeys key = {0};
key.bytes = pCol->bytes;
key.type = pCol->type;
key.isNull = false;
key.pData = taosMemoryCalloc(1, pCol->bytes);
if (key.pData == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
taosArrayPush((*pGroupColVals), &key);
}
int32_t nullFlagSize = sizeof(int8_t) * numOfGroupCols;
(*keyLen) += nullFlagSize;
(*keyBuf) = taosMemoryCalloc(1, (*keyLen));
if ((*keyBuf) == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
return TSDB_CODE_SUCCESS;
}
static bool groupKeyCompare(SArray* pGroupCols, SArray* pGroupColVals, SSDataBlock* pBlock, int32_t rowIndex,
int32_t numOfGroupCols) {
SColumnDataAgg* pColAgg = NULL;
for (int32_t i = 0; i < numOfGroupCols; ++i) {
SColumn* pCol = taosArrayGet(pGroupCols, i);
SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, pCol->slotId);
if (pBlock->pBlockAgg != NULL) {
pColAgg = pBlock->pBlockAgg[pCol->slotId]; // TODO is agg data matched?
}
bool isNull = colDataIsNull(pColInfoData, pBlock->info.rows, rowIndex, pColAgg);
SGroupKeys* pkey = taosArrayGet(pGroupColVals, i);
if (pkey->isNull && isNull) {
continue;
}
if (isNull || pkey->isNull) {
return false;
}
char* val = colDataGetData(pColInfoData, rowIndex);
if (pkey->type == TSDB_DATA_TYPE_JSON) {
int32_t dataLen = getJsonValueLen(val);
if (memcmp(pkey->pData, val, dataLen) == 0) {
continue;
} else {
return false;
}
} else if (IS_VAR_DATA_TYPE(pkey->type)) {
int32_t len = varDataLen(val);
if (len == varDataLen(pkey->pData) && memcmp(varDataVal(pkey->pData), varDataVal(val), len) == 0) {
continue;
} else {
return false;
}
} else {
if (memcmp(pkey->pData, val, pkey->bytes) != 0) {
return false;
}
}
}
return true;
}
static void recordNewGroupKeys(SArray* pGroupCols, SArray* pGroupColVals, SSDataBlock* pBlock, int32_t rowIndex) {
SColumnDataAgg* pColAgg = NULL;
size_t numOfGroupCols = taosArrayGetSize(pGroupCols);
for (int32_t i = 0; i < numOfGroupCols; ++i) {
SColumn* pCol = (SColumn*) taosArrayGet(pGroupCols, i);
SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, pCol->slotId);
// valid range check. todo: return error code.
if (pCol->slotId > taosArrayGetSize(pBlock->pDataBlock)) {
continue;
}
if (pBlock->pBlockAgg != NULL) {
pColAgg = pBlock->pBlockAgg[pCol->slotId]; // TODO is agg data matched?
}
SGroupKeys* pkey = taosArrayGet(pGroupColVals, i);
if (colDataIsNull(pColInfoData, pBlock->info.rows, rowIndex, pColAgg)) {
pkey->isNull = true;
} else {
pkey->isNull = false;
char* val = colDataGetData(pColInfoData, rowIndex);
if (pkey->type == TSDB_DATA_TYPE_JSON) {
if (tTagIsJson(val)) {
terrno = TSDB_CODE_QRY_JSON_IN_GROUP_ERROR;
return;
}
int32_t dataLen = getJsonValueLen(val);
memcpy(pkey->pData, val, dataLen);
} else if (IS_VAR_DATA_TYPE(pkey->type)) {
memcpy(pkey->pData, val, varDataTLen(val));
ASSERT(varDataTLen(val) <= pkey->bytes);
} else {
memcpy(pkey->pData, val, pkey->bytes);
}
}
}
}
static int32_t buildGroupKeys(void* pKey, const SArray* pGroupColVals) {
size_t numOfGroupCols = taosArrayGetSize(pGroupColVals);
char* isNull = (char*)pKey;
char* pStart = (char*)pKey + sizeof(int8_t) * numOfGroupCols;
for (int32_t i = 0; i < numOfGroupCols; ++i) {
SGroupKeys* pkey = taosArrayGet(pGroupColVals, i);
if (pkey->isNull) {
isNull[i] = 1;
continue;
}
isNull[i] = 0;
if (pkey->type == TSDB_DATA_TYPE_JSON) {
int32_t dataLen = getJsonValueLen(pkey->pData);
memcpy(pStart, (pkey->pData), dataLen);
pStart += dataLen;
} else if (IS_VAR_DATA_TYPE(pkey->type)) {
varDataCopy(pStart, pkey->pData);
pStart += varDataTLen(pkey->pData);
ASSERT(varDataTLen(pkey->pData) <= pkey->bytes);
} else {
memcpy(pStart, pkey->pData, pkey->bytes);
pStart += pkey->bytes;
}
}
return (int32_t)(pStart - (char*)pKey);
}
// assign the group keys or user input constant values if required
static void doAssignGroupKeys(SqlFunctionCtx* pCtx, int32_t numOfOutput, int32_t totalRows, int32_t rowIndex) {
for (int32_t i = 0; i < numOfOutput; ++i) {
if (pCtx[i].functionId == -1) { // select count(*),key from t group by key.
SResultRowEntryInfo* pEntryInfo = GET_RES_INFO(&pCtx[i]);
SColumnInfoData* pColInfoData = pCtx[i].input.pData[0];
// todo OPT all/all not NULL
if (!colDataIsNull(pColInfoData, totalRows, rowIndex, NULL)) {
char* dest = GET_ROWCELL_INTERBUF(pEntryInfo);
char* data = colDataGetData(pColInfoData, rowIndex);
if (pColInfoData->info.type == TSDB_DATA_TYPE_JSON) {
int32_t dataLen = getJsonValueLen(data);
memcpy(dest, data, dataLen);
} else if (IS_VAR_DATA_TYPE(pColInfoData->info.type)) {
varDataCopy(dest, data);
} else {
memcpy(dest, data, pColInfoData->info.bytes);
}
} else { // it is a NULL value
pEntryInfo->isNullRes = 1;
}
pEntryInfo->numOfRes = 1;
}
}
}
static void doHashGroupbyAgg(SOperatorInfo* pOperator, SSDataBlock* pBlock) {
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SGroupbyOperatorInfo* pInfo = pOperator->info;
SqlFunctionCtx* pCtx = pOperator->exprSupp.pCtx;
int32_t numOfGroupCols = taosArrayGetSize(pInfo->pGroupCols);
// if (type == TSDB_DATA_TYPE_FLOAT || type == TSDB_DATA_TYPE_DOUBLE) {
// qError("QInfo:0x%"PRIx64" group by not supported on double/float columns, abort", GET_TASKID(pRuntimeEnv));
// return;
// }
int32_t len = 0;
terrno = TSDB_CODE_SUCCESS;
int32_t num = 0;
uint64_t groupId = 0;
for (int32_t j = 0; j < pBlock->info.rows; ++j) {
// Compare with the previous row of this column, and do not set the output buffer again if they are identical.
if (!pInfo->isInit) {
recordNewGroupKeys(pInfo->pGroupCols, pInfo->pGroupColVals, pBlock, j);
if (terrno != TSDB_CODE_SUCCESS) { // group by json error
T_LONG_JMP(pTaskInfo->env, terrno);
}
pInfo->isInit = true;
num++;
continue;
}
bool equal = groupKeyCompare(pInfo->pGroupCols, pInfo->pGroupColVals, pBlock, j, numOfGroupCols);
if (equal) {
num++;
continue;
}
// The first row of a new block does not belongs to the previous existed group
if (j == 0) {
num++;
recordNewGroupKeys(pInfo->pGroupCols, pInfo->pGroupColVals, pBlock, j);
if (terrno != TSDB_CODE_SUCCESS) { // group by json error
T_LONG_JMP(pTaskInfo->env, terrno);
}
continue;
}
len = buildGroupKeys(pInfo->keyBuf, pInfo->pGroupColVals);
int32_t ret = setGroupResultOutputBuf(pOperator, &(pInfo->binfo), pOperator->exprSupp.numOfExprs, pInfo->keyBuf,
len, pBlock->info.id.groupId, pInfo->aggSup.pResultBuf, &pInfo->aggSup);
if (ret != TSDB_CODE_SUCCESS) { // null data, too many state code
T_LONG_JMP(pTaskInfo->env, TSDB_CODE_APP_ERROR);
}
int32_t rowIndex = j - num;
applyAggFunctionOnPartialTuples(pTaskInfo, pCtx, NULL, rowIndex, num, pBlock->info.rows,
pOperator->exprSupp.numOfExprs);
// assign the group keys or user input constant values if required
doAssignGroupKeys(pCtx, pOperator->exprSupp.numOfExprs, pBlock->info.rows, rowIndex);
recordNewGroupKeys(pInfo->pGroupCols, pInfo->pGroupColVals, pBlock, j);
num = 1;
}
if (num > 0) {
len = buildGroupKeys(pInfo->keyBuf, pInfo->pGroupColVals);
int32_t ret = setGroupResultOutputBuf(pOperator, &(pInfo->binfo), pOperator->exprSupp.numOfExprs, pInfo->keyBuf,
len, pBlock->info.id.groupId, pInfo->aggSup.pResultBuf, &pInfo->aggSup);
if (ret != TSDB_CODE_SUCCESS) {
T_LONG_JMP(pTaskInfo->env, TSDB_CODE_APP_ERROR);
}
int32_t rowIndex = pBlock->info.rows - num;
applyAggFunctionOnPartialTuples(pTaskInfo, pCtx, NULL, rowIndex, num, pBlock->info.rows,
pOperator->exprSupp.numOfExprs);
doAssignGroupKeys(pCtx, pOperator->exprSupp.numOfExprs, pBlock->info.rows, rowIndex);
}
}
static SSDataBlock* buildGroupResultDataBlock(SOperatorInfo* pOperator) {
SGroupbyOperatorInfo* pInfo = pOperator->info;
SSDataBlock* pRes = pInfo->binfo.pRes;
while (1) {
doBuildResultDatablock(pOperator, &pInfo->binfo, &pInfo->groupResInfo, pInfo->aggSup.pResultBuf);
doFilter(pRes, pOperator->exprSupp.pFilterInfo, NULL);
if (!hasRemainResults(&pInfo->groupResInfo)) {
setOperatorCompleted(pOperator);
break;
}
if (pRes->info.rows > 0) {
break;
}
}
pOperator->resultInfo.totalRows += pRes->info.rows;
return (pRes->info.rows == 0) ? NULL : pRes;
}
static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator) {
if (pOperator->status == OP_EXEC_DONE) {
return NULL;
}
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SGroupbyOperatorInfo* pInfo = pOperator->info;
if (pOperator->status == OP_RES_TO_RETURN) {
return buildGroupResultDataBlock(pOperator);
}
int32_t order = pInfo->binfo.inputTsOrder;
int64_t st = taosGetTimestampUs();
SOperatorInfo* downstream = pOperator->pDownstream[0];
while (1) {
SSDataBlock* pBlock = downstream->fpSet.getNextFn(downstream);
if (pBlock == NULL) {
break;
}
pInfo->binfo.pRes->info.scanFlag = pBlock->info.scanFlag;
// the pDataBlock are always the same one, no need to call this again
setInputDataBlock(&pOperator->exprSupp, pBlock, order, pBlock->info.scanFlag, true);
// there is an scalar expression that needs to be calculated right before apply the group aggregation.
if (pInfo->scalarSup.pExprInfo != NULL) {
pTaskInfo->code = projectApplyFunctions(pInfo->scalarSup.pExprInfo, pBlock, pBlock, pInfo->scalarSup.pCtx,
pInfo->scalarSup.numOfExprs, NULL);
if (pTaskInfo->code != TSDB_CODE_SUCCESS) {
T_LONG_JMP(pTaskInfo->env, pTaskInfo->code);
}
}
doHashGroupbyAgg(pOperator, pBlock);
}
pOperator->status = OP_RES_TO_RETURN;
#if 0
if(pOperator->fpSet.encodeResultRow){
char *result = NULL;
int32_t length = 0;
pOperator->fpSet.encodeResultRow(pOperator, &result, &length);
SAggSupporter* pSup = &pInfo->aggSup;
taosHashClear(pSup->pResultRowHashTable);
pInfo->binfo.resultRowInfo.size = 0;
pOperator->fpSet.decodeResultRow(pOperator, result);
if(result){
taosMemoryFree(result);
}
}
#endif
initGroupedResultInfo(&pInfo->groupResInfo, pInfo->aggSup.pResultRowHashTable, 0);
pOperator->cost.openCost = (taosGetTimestampUs() - st) / 1000.0;
return buildGroupResultDataBlock(pOperator);
}
SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SAggPhysiNode* pAggNode, SExecTaskInfo* pTaskInfo) {
int32_t code = TSDB_CODE_SUCCESS;
SGroupbyOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SGroupbyOperatorInfo));
SOperatorInfo* pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
if (pInfo == NULL || pOperator == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _error;
}
SSDataBlock* pResBlock = createDataBlockFromDescNode(pAggNode->node.pOutputDataBlockDesc);
initBasicInfo(&pInfo->binfo, pResBlock);
int32_t numOfScalarExpr = 0;
SExprInfo* pScalarExprInfo = NULL;
if (pAggNode->pExprs != NULL) {
pScalarExprInfo = createExprInfo(pAggNode->pExprs, NULL, &numOfScalarExpr);
}
pInfo->pGroupCols = extractColumnInfo(pAggNode->pGroupKeys);
code = initExprSupp(&pInfo->scalarSup, pScalarExprInfo, numOfScalarExpr, &pTaskInfo->storageAPI.functionStore);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
initResultSizeInfo(&pOperator->resultInfo, 4096);
blockDataEnsureCapacity(pInfo->binfo.pRes, pOperator->resultInfo.capacity);
code = initGroupOptrInfo(&pInfo->pGroupColVals, &pInfo->groupKeyLen, &pInfo->keyBuf, pInfo->pGroupCols);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
int32_t num = 0;
SExprInfo* pExprInfo = createExprInfo(pAggNode->pAggFuncs, pAggNode->pGroupKeys, &num);
code = initAggSup(&pOperator->exprSupp, &pInfo->aggSup, pExprInfo, num, pInfo->groupKeyLen, pTaskInfo->id.str,
pTaskInfo->streamInfo.pState, &pTaskInfo->storageAPI.functionStore);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
code = filterInitFromNode((SNode*)pAggNode->node.pConditions, &pOperator->exprSupp.pFilterInfo, 0);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
initResultRowInfo(&pInfo->binfo.resultRowInfo);
setOperatorInfo(pOperator, "GroupbyAggOperator", 0, true, OP_NOT_OPENED, pInfo, pTaskInfo);
pInfo->binfo.mergeResultBlock = pAggNode->mergeDataBlock;
pInfo->binfo.inputTsOrder = pAggNode->node.inputTsOrder;
pInfo->binfo.outputTsOrder = pAggNode->node.outputTsOrder;
pOperator->fpSet = createOperatorFpSet(optrDummyOpenFn, hashGroupbyAggregate, NULL, destroyGroupOperatorInfo,
optrDefaultBufFn, NULL);
code = appendDownstream(pOperator, &downstream, 1);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
return pOperator;
_error:
pTaskInfo->code = code;
if (pInfo != NULL) {
destroyGroupOperatorInfo(pInfo);
}
taosMemoryFreeClear(pOperator);
return NULL;
}
static void doHashPartition(SOperatorInfo* pOperator, SSDataBlock* pBlock) {
SPartitionOperatorInfo* pInfo = pOperator->info;
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
for (int32_t j = 0; j < pBlock->info.rows; ++j) {
recordNewGroupKeys(pInfo->pGroupCols, pInfo->pGroupColVals, pBlock, j);
int32_t len = buildGroupKeys(pInfo->keyBuf, pInfo->pGroupColVals);
SDataGroupInfo* pGroupInfo = NULL;
void* pPage = getCurrentDataGroupInfo(pInfo, &pGroupInfo, len);
if (pPage == NULL) {
T_LONG_JMP(pTaskInfo->env, terrno);
}
pGroupInfo->numOfRows += 1;
// group id
if (pGroupInfo->groupId == 0) {
pGroupInfo->groupId = calcGroupId(pInfo->keyBuf, len);
}
// number of rows
int32_t* rows = (int32_t*)pPage;
size_t numOfCols = pOperator->exprSupp.numOfExprs;
for (int32_t i = 0; i < numOfCols; ++i) {
SExprInfo* pExpr = &pOperator->exprSupp.pExprInfo[i];
int32_t slotId = pExpr->base.pParam[0].pCol->slotId;
SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, slotId);
int32_t bytes = pColInfoData->info.bytes;
int32_t startOffset = pInfo->columnOffset[i];
int32_t* columnLen = NULL;
int32_t contentLen = 0;
if (IS_VAR_DATA_TYPE(pColInfoData->info.type)) {
int32_t* offset = (int32_t*)((char*)pPage + startOffset);
columnLen = (int32_t*)((char*)pPage + startOffset + sizeof(int32_t) * pInfo->rowCapacity);
char* data = (char*)((char*)columnLen + sizeof(int32_t));
if (colDataIsNull_s(pColInfoData, j)) {
offset[(*rows)] = -1;
contentLen = 0;
} else if (pColInfoData->info.type == TSDB_DATA_TYPE_JSON) {
offset[*rows] = (*columnLen);
char* src = colDataGetData(pColInfoData, j);
int32_t dataLen = getJsonValueLen(src);
memcpy(data + (*columnLen), src, dataLen);
int32_t v = (data + (*columnLen) + dataLen - (char*)pPage);
ASSERT(v > 0);
contentLen = dataLen;
} else {
offset[*rows] = (*columnLen);
char* src = colDataGetData(pColInfoData, j);
memcpy(data + (*columnLen), src, varDataTLen(src));
int32_t v = (data + (*columnLen) + varDataTLen(src) - (char*)pPage);
ASSERT(v > 0);
contentLen = varDataTLen(src);
}
} else {
char* bitmap = (char*)pPage + startOffset;
columnLen = (int32_t*)((char*)pPage + startOffset + BitmapLen(pInfo->rowCapacity));
char* data = (char*)columnLen + sizeof(int32_t);
bool isNull = colDataIsNull_f(pColInfoData->nullbitmap, j);
if (isNull) {
colDataSetNull_f(bitmap, (*rows));
} else {
memcpy(data + (*columnLen), colDataGetData(pColInfoData, j), bytes);
ASSERT((data + (*columnLen) + bytes - (char*)pPage) <= getBufPageSize(pInfo->pBuf));
}
contentLen = bytes;
}
(*columnLen) += contentLen;
}
(*rows) += 1;
setBufPageDirty(pPage, true);
releaseBufPage(pInfo->pBuf, pPage);
}
}
void* getCurrentDataGroupInfo(const SPartitionOperatorInfo* pInfo, SDataGroupInfo** pGroupInfo, int32_t len) {
SDataGroupInfo* p = taosHashGet(pInfo->pGroupSet, pInfo->keyBuf, len);
void* pPage = NULL;
if (p == NULL) { // it is a new group
SDataGroupInfo gi = {0};
gi.pPageList = taosArrayInit(100, sizeof(int32_t));
taosHashPut(pInfo->pGroupSet, pInfo->keyBuf, len, &gi, sizeof(SDataGroupInfo));
p = taosHashGet(pInfo->pGroupSet, pInfo->keyBuf, len);
int32_t pageId = 0;
pPage = getNewBufPage(pInfo->pBuf, &pageId);
if (pPage == NULL) {
return pPage;
}
taosArrayPush(p->pPageList, &pageId);
*(int32_t*)pPage = 0;
} else {
int32_t* curId = taosArrayGetLast(p->pPageList);
pPage = getBufPage(pInfo->pBuf, *curId);
if (pPage == NULL) {
qError("failed to get buffer, code:%s", tstrerror(terrno));
return pPage;
}
int32_t* rows = (int32_t*)pPage;
if (*rows >= pInfo->rowCapacity) {
// release buffer
releaseBufPage(pInfo->pBuf, pPage);
// add a new page for current group
int32_t pageId = 0;
pPage = getNewBufPage(pInfo->pBuf, &pageId);
if (pPage == NULL) {
qError("failed to get new buffer, code:%s", tstrerror(terrno));
return NULL;
}
taosArrayPush(p->pPageList, &pageId);
memset(pPage, 0, getBufPageSize(pInfo->pBuf));
}
}
*pGroupInfo = p;
return pPage;
}
uint64_t calcGroupId(char* pData, int32_t len) {
T_MD5_CTX context;
tMD5Init(&context);
tMD5Update(&context, (uint8_t*)pData, len);
tMD5Final(&context);
// NOTE: only extract the initial 8 bytes of the final MD5 digest
uint64_t id = 0;
memcpy(&id, context.digest, sizeof(uint64_t));
if (0 == id)
memcpy(&id, context.digest + 8, sizeof(uint64_t));
return id;
}
int32_t* setupColumnOffset(const SSDataBlock* pBlock, int32_t rowCapacity) {
size_t numOfCols = taosArrayGetSize(pBlock->pDataBlock);
int32_t* offset = taosMemoryCalloc(numOfCols, sizeof(int32_t));
offset[0] = sizeof(int32_t) +
sizeof(uint64_t); // the number of rows in current page, ref to SSDataBlock paged serialization format
for (int32_t i = 0; i < numOfCols - 1; ++i) {
SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, i);
int32_t bytes = pColInfoData->info.bytes;
int32_t payloadLen = bytes * rowCapacity;
if (IS_VAR_DATA_TYPE(pColInfoData->info.type)) {
// offset segment + content length + payload
offset[i + 1] = rowCapacity * sizeof(int32_t) + sizeof(int32_t) + payloadLen + offset[i];
} else {
// bitmap + content length + payload
offset[i + 1] = BitmapLen(rowCapacity) + sizeof(int32_t) + payloadLen + offset[i];
}
}
return offset;
}
static void clearPartitionOperator(SPartitionOperatorInfo* pInfo) {
int32_t size = taosArrayGetSize(pInfo->sortedGroupArray);
for (int32_t i = 0; i < size; i++) {
SDataGroupInfo* pGp = taosArrayGet(pInfo->sortedGroupArray, i);
taosArrayDestroy(pGp->pPageList);
}
taosArrayClear(pInfo->sortedGroupArray);
clearDiskbasedBuf(pInfo->pBuf);
}
static int compareDataGroupInfo(const void* group1, const void* group2) {
const SDataGroupInfo* pGroupInfo1 = group1;
const SDataGroupInfo* pGroupInfo2 = group2;
if (pGroupInfo1->groupId == pGroupInfo2->groupId) {
return 0;
}
return (pGroupInfo1->groupId < pGroupInfo2->groupId) ? -1 : 1;
}
static SSDataBlock* buildPartitionResult(SOperatorInfo* pOperator) {
SPartitionOperatorInfo* pInfo = pOperator->info;
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SDataGroupInfo* pGroupInfo =
(pInfo->groupIndex != -1) ? taosArrayGet(pInfo->sortedGroupArray, pInfo->groupIndex) : NULL;
if (pInfo->groupIndex == -1 || pInfo->pageIndex >= taosArrayGetSize(pGroupInfo->pPageList)) {
// try next group data
++pInfo->groupIndex;
if (pInfo->groupIndex >= taosArrayGetSize(pInfo->sortedGroupArray)) {
setOperatorCompleted(pOperator);
clearPartitionOperator(pInfo);
return NULL;
}
pGroupInfo = taosArrayGet(pInfo->sortedGroupArray, pInfo->groupIndex);
pInfo->pageIndex = 0;
}
int32_t* pageId = taosArrayGet(pGroupInfo->pPageList, pInfo->pageIndex);
void* page = getBufPage(pInfo->pBuf, *pageId);
if (page == NULL) {
qError("failed to get buffer, code:%s, %s", tstrerror(terrno), GET_TASKID(pTaskInfo));
T_LONG_JMP(pTaskInfo->env, terrno);
}
blockDataEnsureCapacity(pInfo->binfo.pRes, pInfo->rowCapacity);
blockDataFromBuf1(pInfo->binfo.pRes, page, pInfo->rowCapacity);
pInfo->pageIndex += 1;
releaseBufPage(pInfo->pBuf, page);
pInfo->binfo.pRes->info.dataLoad = 1;
blockDataUpdateTsWindow(pInfo->binfo.pRes, 0);
pInfo->binfo.pRes->info.id.groupId = pGroupInfo->groupId;
pOperator->resultInfo.totalRows += pInfo->binfo.pRes->info.rows;
return pInfo->binfo.pRes;
}
static SSDataBlock* hashPartition(SOperatorInfo* pOperator) {
if (pOperator->status == OP_EXEC_DONE) {
return NULL;
}
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SPartitionOperatorInfo* pInfo = pOperator->info;
SSDataBlock* pRes = pInfo->binfo.pRes;
if (pOperator->status == OP_RES_TO_RETURN) {
blockDataCleanup(pRes);
return buildPartitionResult(pOperator);
}
int64_t st = taosGetTimestampUs();
SOperatorInfo* downstream = pOperator->pDownstream[0];
while (1) {
SSDataBlock* pBlock = downstream->fpSet.getNextFn(downstream);
if (pBlock == NULL) {
break;
}
pInfo->binfo.pRes->info.scanFlag = pBlock->info.scanFlag;
// there is an scalar expression that needs to be calculated right before apply the group aggregation.
if (pInfo->scalarSup.pExprInfo != NULL) {
pTaskInfo->code = projectApplyFunctions(pInfo->scalarSup.pExprInfo, pBlock, pBlock, pInfo->scalarSup.pCtx,
pInfo->scalarSup.numOfExprs, NULL);
if (pTaskInfo->code != TSDB_CODE_SUCCESS) {
T_LONG_JMP(pTaskInfo->env, pTaskInfo->code);
}
}
terrno = TSDB_CODE_SUCCESS;
doHashPartition(pOperator, pBlock);
if (terrno != TSDB_CODE_SUCCESS) { // group by json error
T_LONG_JMP(pTaskInfo->env, terrno);
}
}
SArray* groupArray = taosArrayInit(taosHashGetSize(pInfo->pGroupSet), sizeof(SDataGroupInfo));
void* pGroupIter = taosHashIterate(pInfo->pGroupSet, NULL);
while (pGroupIter != NULL) {
SDataGroupInfo* pGroupInfo = pGroupIter;
taosArrayPush(groupArray, pGroupInfo);
pGroupIter = taosHashIterate(pInfo->pGroupSet, pGroupIter);
}
taosArraySort(groupArray, compareDataGroupInfo);
pInfo->sortedGroupArray = groupArray;
pInfo->groupIndex = -1;
taosHashClear(pInfo->pGroupSet);
pOperator->cost.openCost = (taosGetTimestampUs() - st) / 1000.0;
pOperator->status = OP_RES_TO_RETURN;
blockDataEnsureCapacity(pRes, 4096);
return buildPartitionResult(pOperator);
}
static void destroyPartitionOperatorInfo(void* param) {
SPartitionOperatorInfo* pInfo = (SPartitionOperatorInfo*)param;
cleanupBasicInfo(&pInfo->binfo);
taosArrayDestroy(pInfo->pGroupCols);
for (int i = 0; i < taosArrayGetSize(pInfo->pGroupColVals); i++) {
SGroupKeys key = *(SGroupKeys*)taosArrayGet(pInfo->pGroupColVals, i);
taosMemoryFree(key.pData);
}
taosArrayDestroy(pInfo->pGroupColVals);
taosMemoryFree(pInfo->keyBuf);
int32_t size = taosArrayGetSize(pInfo->sortedGroupArray);
for (int32_t i = 0; i < size; i++) {
SDataGroupInfo* pGp = taosArrayGet(pInfo->sortedGroupArray, i);
taosArrayDestroy(pGp->pPageList);
}
taosArrayDestroy(pInfo->sortedGroupArray);
void* pGroupIter = taosHashIterate(pInfo->pGroupSet, NULL);
while (pGroupIter != NULL) {
SDataGroupInfo* pGroupInfo = pGroupIter;
taosArrayDestroy(pGroupInfo->pPageList);
pGroupIter = taosHashIterate(pInfo->pGroupSet, pGroupIter);
}
taosHashCleanup(pInfo->pGroupSet);
taosMemoryFree(pInfo->columnOffset);
cleanupExprSupp(&pInfo->scalarSup);
destroyDiskbasedBuf(pInfo->pBuf);
taosMemoryFreeClear(param);
}
SOperatorInfo* createPartitionOperatorInfo(SOperatorInfo* downstream, SPartitionPhysiNode* pPartNode,
SExecTaskInfo* pTaskInfo) {
SPartitionOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SPartitionOperatorInfo));
SOperatorInfo* pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
if (pInfo == NULL || pOperator == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
pTaskInfo->code = terrno;
goto _error;
}
int32_t numOfCols = 0;
SExprInfo* pExprInfo = createExprInfo(pPartNode->pTargets, NULL, &numOfCols);
pInfo->pGroupCols = extractPartitionColInfo(pPartNode->pPartitionKeys);
if (pPartNode->pExprs != NULL) {
int32_t num = 0;
SExprInfo* pExprInfo1 = createExprInfo(pPartNode->pExprs, NULL, &num);
int32_t code = initExprSupp(&pInfo->scalarSup, pExprInfo1, num, &pTaskInfo->storageAPI.functionStore);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
pTaskInfo->code = terrno;
goto _error;
}
}
_hash_fn_t hashFn = taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY);
pInfo->pGroupSet = taosHashInit(100, hashFn, false, HASH_NO_LOCK);
if (pInfo->pGroupSet == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
pTaskInfo->code = terrno;
goto _error;
}
uint32_t defaultPgsz = 0;
uint32_t defaultBufsz = 0;
pInfo->binfo.pRes = createDataBlockFromDescNode(pPartNode->node.pOutputDataBlockDesc);
int32_t code = getBufferPgSize(pInfo->binfo.pRes->info.rowSize, &defaultPgsz, &defaultBufsz);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
pTaskInfo->code = code;
goto _error;
}
if (!osTempSpaceAvailable()) {
terrno = TSDB_CODE_NO_DISKSPACE;
pTaskInfo->code = terrno;
qError("Create partition operator info failed since %s, tempDir:%s", terrstr(), tsTempDir);
goto _error;
}
code = createDiskbasedBuf(&pInfo->pBuf, defaultPgsz, defaultBufsz, pTaskInfo->id.str, tsTempDir);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
pTaskInfo->code = code;
goto _error;
}
pInfo->rowCapacity = blockDataGetCapacityInRow(pInfo->binfo.pRes, getBufPageSize(pInfo->pBuf),
blockDataGetSerialMetaSize(taosArrayGetSize(pInfo->binfo.pRes->pDataBlock)));
pInfo->columnOffset = setupColumnOffset(pInfo->binfo.pRes, pInfo->rowCapacity);
code = initGroupOptrInfo(&pInfo->pGroupColVals, &pInfo->groupKeyLen, &pInfo->keyBuf, pInfo->pGroupCols);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
pTaskInfo->code = code;
goto _error;
}
setOperatorInfo(pOperator, "PartitionOperator", QUERY_NODE_PHYSICAL_PLAN_PARTITION, false, OP_NOT_OPENED, pInfo,
pTaskInfo);
pOperator->exprSupp.numOfExprs = numOfCols;
pOperator->exprSupp.pExprInfo = pExprInfo;
pOperator->fpSet =
createOperatorFpSet(optrDummyOpenFn, hashPartition, NULL, destroyPartitionOperatorInfo, optrDefaultBufFn, NULL);
code = appendDownstream(pOperator, &downstream, 1);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
pTaskInfo->code = code;
goto _error;
}
return pOperator;
_error:
if (pInfo != NULL) {
destroyPartitionOperatorInfo(pInfo);
}
taosMemoryFreeClear(pOperator);
return NULL;
}
int32_t setGroupResultOutputBuf(SOperatorInfo* pOperator, SOptrBasicInfo* binfo, int32_t numOfCols, char* pData,
int16_t bytes, uint64_t groupId, SDiskbasedBuf* pBuf, SAggSupporter* pAggSup) {
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SResultRowInfo* pResultRowInfo = &binfo->resultRowInfo;
SqlFunctionCtx* pCtx = pOperator->exprSupp.pCtx;
SResultRow* pResultRow =
doSetResultOutBufByKey(pBuf, pResultRowInfo, (char*)pData, bytes, true, groupId, pTaskInfo, false, pAggSup, false);
setResultRowInitCtx(pResultRow, pCtx, numOfCols, pOperator->exprSupp.rowEntryInfoOffset);
return TSDB_CODE_SUCCESS;
}
uint64_t calGroupIdByData(SPartitionBySupporter* pParSup, SExprSupp* pExprSup, SSDataBlock* pBlock, int32_t rowId) {
if (pExprSup->pExprInfo != NULL) {
int32_t code =
projectApplyFunctions(pExprSup->pExprInfo, pBlock, pBlock, pExprSup->pCtx, pExprSup->numOfExprs, NULL);
if (code != TSDB_CODE_SUCCESS) {
qError("calaculate group id error, code:%d", code);
}
}
recordNewGroupKeys(pParSup->pGroupCols, pParSup->pGroupColVals, pBlock, rowId);
int32_t len = buildGroupKeys(pParSup->keyBuf, pParSup->pGroupColVals);
uint64_t groupId = calcGroupId(pParSup->keyBuf, len);
return groupId;
}
static bool hasRemainPartion(SStreamPartitionOperatorInfo* pInfo) { return pInfo->parIte != NULL; }
static bool hasRemainTbName(SStreamPartitionOperatorInfo* pInfo) { return pInfo->pTbNameIte != NULL; }
static SSDataBlock* buildStreamPartitionResult(SOperatorInfo* pOperator) {
SStorageAPI* pAPI = &pOperator->pTaskInfo->storageAPI;
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SStreamPartitionOperatorInfo* pInfo = pOperator->info;
SSDataBlock* pDest = pInfo->binfo.pRes;
ASSERT(hasRemainPartion(pInfo));
SPartitionDataInfo* pParInfo = (SPartitionDataInfo*)pInfo->parIte;
blockDataCleanup(pDest);
int32_t rows = taosArrayGetSize(pParInfo->rowIds);
SSDataBlock* pSrc = pInfo->pInputDataBlock;
for (int32_t i = 0; i < rows; i++) {
int32_t rowIndex = *(int32_t*)taosArrayGet(pParInfo->rowIds, i);
for (int32_t j = 0; j < pOperator->exprSupp.numOfExprs; j++) {
int32_t slotId = pOperator->exprSupp.pExprInfo[j].base.pParam[0].pCol->slotId;
SColumnInfoData* pSrcCol = taosArrayGet(pSrc->pDataBlock, slotId);
SColumnInfoData* pDestCol = taosArrayGet(pDest->pDataBlock, j);
bool isNull = colDataIsNull(pSrcCol, pSrc->info.rows, rowIndex, NULL);
char* pSrcData = colDataGetData(pSrcCol, rowIndex);
colDataSetVal(pDestCol, pDest->info.rows, pSrcData, isNull);
}
pDest->info.rows++;
}
pDest->info.parTbName[0] = 0;
if (pInfo->tbnameCalSup.numOfExprs > 0) {
void* tbname = NULL;
if (pAPI->stateStore.streamStateGetParName(pOperator->pTaskInfo->streamInfo.pState, pParInfo->groupId, &tbname) == 0) {
memcpy(pDest->info.parTbName, tbname, TSDB_TABLE_NAME_LEN);
pAPI->stateStore.streamStateFreeVal(tbname);
}
}
taosArrayDestroy(pParInfo->rowIds);
pParInfo->rowIds = NULL;
pDest->info.dataLoad = 1;
blockDataUpdateTsWindow(pDest, pInfo->tsColIndex);
pDest->info.id.groupId = pParInfo->groupId;
pOperator->resultInfo.totalRows += pDest->info.rows;
pInfo->parIte = taosHashIterate(pInfo->pPartitions, pInfo->parIte);
ASSERT(pDest->info.rows > 0);
printDataBlock(pDest, getStreamOpName(pOperator->operatorType), GET_TASKID(pTaskInfo));
return pDest;
}
void appendCreateTableRow(void* pState, SExprSupp* pTableSup, SExprSupp* pTagSup, uint64_t groupId,
SSDataBlock* pSrcBlock, int32_t rowId, SSDataBlock* pDestBlock, SStateStore* pAPI) {
void* pValue = NULL;
if (pAPI->streamStateGetParName(pState, groupId, &pValue) != 0) {
SSDataBlock* pTmpBlock = blockCopyOneRow(pSrcBlock, rowId);
memset(pTmpBlock->info.parTbName, 0, TSDB_TABLE_NAME_LEN);
pTmpBlock->info.id.groupId = groupId;
char* tbName = pSrcBlock->info.parTbName;
if (pTableSup->numOfExprs > 0) {
projectApplyFunctions(pTableSup->pExprInfo, pDestBlock, pTmpBlock, pTableSup->pCtx, pTableSup->numOfExprs, NULL);
SColumnInfoData* pTbCol = taosArrayGet(pDestBlock->pDataBlock, UD_TABLE_NAME_COLUMN_INDEX);
memset(tbName, 0, TSDB_TABLE_NAME_LEN);
int32_t len = 0;
if (colDataIsNull_s(pTbCol, pDestBlock->info.rows - 1)) {
len = 1;
tbName[0] = 0;
} else {
void* pData = colDataGetData(pTbCol, pDestBlock->info.rows - 1);
len = TMIN(varDataLen(pData), TSDB_TABLE_NAME_LEN - 1);
memcpy(tbName, varDataVal(pData), len);
pAPI->streamStatePutParName(pState, groupId, tbName);
}
memcpy(pTmpBlock->info.parTbName, tbName, len);
pDestBlock->info.rows--;
} else {
void* pTbNameCol = taosArrayGet(pDestBlock->pDataBlock, UD_TABLE_NAME_COLUMN_INDEX);
colDataSetNULL(pTbNameCol, pDestBlock->info.rows);
tbName[0] = 0;
}
if (pTagSup->numOfExprs > 0) {
projectApplyFunctions(pTagSup->pExprInfo, pDestBlock, pTmpBlock, pTagSup->pCtx, pTagSup->numOfExprs, NULL);
pDestBlock->info.rows--;
} else {
memcpy(pDestBlock->info.parTbName, pTmpBlock->info.parTbName, TSDB_TABLE_NAME_LEN);
}
void* pGpIdCol = taosArrayGet(pDestBlock->pDataBlock, UD_GROUPID_COLUMN_INDEX);
colDataSetVal(pGpIdCol, pDestBlock->info.rows, (const char*)&groupId, false);
pDestBlock->info.rows++;
blockDataDestroy(pTmpBlock);
} else {
memcpy(pSrcBlock->info.parTbName, pValue, TSDB_TABLE_NAME_LEN);
}
pAPI->streamStateReleaseBuf(pState, NULL, pValue);
}
static SSDataBlock* buildStreamCreateTableResult(SOperatorInfo* pOperator) {
SExecTaskInfo* pTask = pOperator->pTaskInfo;
SStreamPartitionOperatorInfo* pInfo = pOperator->info;
if ((pInfo->tbnameCalSup.numOfExprs == 0 && pInfo->tagCalSup.numOfExprs == 0) ||
taosHashGetSize(pInfo->pPartitions) == 0) {
return NULL;
}
blockDataCleanup(pInfo->pCreateTbRes);
blockDataEnsureCapacity(pInfo->pCreateTbRes, taosHashGetSize(pInfo->pPartitions));
SSDataBlock* pSrc = pInfo->pInputDataBlock;
if (pInfo->pTbNameIte != NULL) {
SPartitionDataInfo* pParInfo = (SPartitionDataInfo*)pInfo->pTbNameIte;
int32_t rowId = *(int32_t*)taosArrayGet(pParInfo->rowIds, 0);
appendCreateTableRow(pTask->streamInfo.pState, &pInfo->tbnameCalSup, &pInfo->tagCalSup,
pParInfo->groupId, pSrc, rowId, pInfo->pCreateTbRes, &pTask->storageAPI.stateStore);
pInfo->pTbNameIte = taosHashIterate(pInfo->pPartitions, pInfo->pTbNameIte);
}
return pInfo->pCreateTbRes->info.rows > 0 ? pInfo->pCreateTbRes : NULL;
}
static void doStreamHashPartitionImpl(SStreamPartitionOperatorInfo* pInfo, SSDataBlock* pBlock) {
pInfo->pInputDataBlock = pBlock;
for (int32_t i = 0; i < pBlock->info.rows; ++i) {
recordNewGroupKeys(pInfo->partitionSup.pGroupCols, pInfo->partitionSup.pGroupColVals, pBlock, i);
int32_t keyLen = buildGroupKeys(pInfo->partitionSup.keyBuf, pInfo->partitionSup.pGroupColVals);
SPartitionDataInfo* pParData =
(SPartitionDataInfo*)taosHashGet(pInfo->pPartitions, pInfo->partitionSup.keyBuf, keyLen);
if (pParData) {
taosArrayPush(pParData->rowIds, &i);
} else {
SPartitionDataInfo newParData = {0};
newParData.groupId = calcGroupId(pInfo->partitionSup.keyBuf, keyLen);
newParData.rowIds = taosArrayInit(64, sizeof(int32_t));
taosArrayPush(newParData.rowIds, &i);
taosHashPut(pInfo->pPartitions, pInfo->partitionSup.keyBuf, keyLen, &newParData, sizeof(SPartitionDataInfo));
}
}
}
static SSDataBlock* doStreamHashPartition(SOperatorInfo* pOperator) {
if (pOperator->status == OP_EXEC_DONE) {
return NULL;
}
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SStreamPartitionOperatorInfo* pInfo = pOperator->info;
SSDataBlock* pCtRes = NULL;
if (hasRemainTbName(pInfo)) {
pCtRes = buildStreamCreateTableResult(pOperator);
if (pCtRes != NULL) {
return pCtRes;
}
}
if (hasRemainPartion(pInfo)) {
return buildStreamPartitionResult(pOperator);
}
int64_t st = taosGetTimestampUs();
SOperatorInfo* downstream = pOperator->pDownstream[0];
{
pInfo->pInputDataBlock = NULL;
SSDataBlock* pBlock = downstream->fpSet.getNextFn(downstream);
if (pBlock == NULL) {
setOperatorCompleted(pOperator);
return NULL;
}
printSpecDataBlock(pBlock, getStreamOpName(pOperator->operatorType), "recv", GET_TASKID(pTaskInfo));
switch (pBlock->info.type) {
case STREAM_NORMAL:
case STREAM_PULL_DATA:
case STREAM_INVALID:
pInfo->binfo.pRes->info.type = pBlock->info.type;
break;
case STREAM_DELETE_DATA: {
copyDataBlock(pInfo->pDelRes, pBlock);
pInfo->pDelRes->info.type = STREAM_DELETE_RESULT;
printDataBlock(pInfo->pDelRes, getStreamOpName(pOperator->operatorType), GET_TASKID(pTaskInfo));
return pInfo->pDelRes;
} break;
default:
ASSERTS(pBlock->info.type == STREAM_CREATE_CHILD_TABLE || pBlock->info.type == STREAM_RETRIEVE, "invalid SSDataBlock type");
return pBlock;
}
// there is an scalar expression that needs to be calculated right before apply the group aggregation.
if (pInfo->scalarSup.pExprInfo != NULL) {
projectApplyFunctions(pInfo->scalarSup.pExprInfo, pBlock, pBlock, pInfo->scalarSup.pCtx,
pInfo->scalarSup.numOfExprs, NULL);
}
taosHashClear(pInfo->pPartitions);
doStreamHashPartitionImpl(pInfo, pBlock);
}
pOperator->cost.openCost = (taosGetTimestampUs() - st) / 1000.0;
pInfo->parIte = taosHashIterate(pInfo->pPartitions, NULL);
pInfo->pTbNameIte = taosHashIterate(pInfo->pPartitions, NULL);
pCtRes = buildStreamCreateTableResult(pOperator);
if (pCtRes != NULL) {
return pCtRes;
}
return buildStreamPartitionResult(pOperator);
}
static void destroyStreamPartitionOperatorInfo(void* param) {
SStreamPartitionOperatorInfo* pInfo = (SStreamPartitionOperatorInfo*)param;
cleanupBasicInfo(&pInfo->binfo);
taosArrayDestroy(pInfo->partitionSup.pGroupCols);
for (int i = 0; i < taosArrayGetSize(pInfo->partitionSup.pGroupColVals); i++) {
SGroupKeys key = *(SGroupKeys*)taosArrayGet(pInfo->partitionSup.pGroupColVals, i);
taosMemoryFree(key.pData);
}
taosArrayDestroy(pInfo->partitionSup.pGroupColVals);
taosMemoryFree(pInfo->partitionSup.keyBuf);
cleanupExprSupp(&pInfo->scalarSup);
cleanupExprSupp(&pInfo->tbnameCalSup);
cleanupExprSupp(&pInfo->tagCalSup);
blockDataDestroy(pInfo->pDelRes);
taosHashCleanup(pInfo->pPartitions);
blockDataDestroy(pInfo->pCreateTbRes);
taosMemoryFreeClear(param);
}
void initParDownStream(SOperatorInfo* downstream, SPartitionBySupporter* pParSup, SExprSupp* pExpr) {
SStorageAPI* pAPI = &downstream->pTaskInfo->storageAPI;
if (downstream->operatorType != QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN) {
return;
}
SStreamScanInfo* pScanInfo = downstream->info;
pScanInfo->partitionSup = *pParSup;
pScanInfo->pPartScalarSup = pExpr;
if (!pScanInfo->igCheckUpdate && !pScanInfo->pUpdateInfo) {
pScanInfo->pUpdateInfo = pAPI->stateStore.updateInfoInit(60000, TSDB_TIME_PRECISION_MILLI, 0);
}
}
SSDataBlock* buildCreateTableBlock(SExprSupp* tbName, SExprSupp* tag) {
SSDataBlock* pBlock = taosMemoryCalloc(1, sizeof(SSDataBlock));
pBlock->info.hasVarCol = false;
pBlock->info.id.groupId = 0;
pBlock->info.rows = 0;
pBlock->info.type = STREAM_CREATE_CHILD_TABLE;
pBlock->info.watermark = INT64_MIN;
pBlock->pDataBlock = taosArrayInit(4, sizeof(SColumnInfoData));
SColumnInfoData infoData = {0};
infoData.info.type = TSDB_DATA_TYPE_VARCHAR;
if (tbName->numOfExprs > 0) {
infoData.info.bytes = tbName->pExprInfo->base.resSchema.bytes;
} else {
infoData.info.bytes = 1;
}
pBlock->info.rowSize += infoData.info.bytes;
// sub table name
taosArrayPush(pBlock->pDataBlock, &infoData);
SColumnInfoData gpIdData = {0};
gpIdData.info.type = TSDB_DATA_TYPE_UBIGINT;
gpIdData.info.bytes = 8;
pBlock->info.rowSize += gpIdData.info.bytes;
// group id
taosArrayPush(pBlock->pDataBlock, &gpIdData);
for (int32_t i = 0; i < tag->numOfExprs; i++) {
SColumnInfoData tagCol = {0};
tagCol.info.type = tag->pExprInfo[i].base.resSchema.type;
tagCol.info.bytes = tag->pExprInfo[i].base.resSchema.bytes;
tagCol.info.precision = tag->pExprInfo[i].base.resSchema.precision;
// tag info
taosArrayPush(pBlock->pDataBlock, &tagCol);
pBlock->info.rowSize += tagCol.info.bytes;
}
return pBlock;
}
void freePartItem(void* ptr) {
SPartitionDataInfo* pPart = (SPartitionDataInfo*)ptr;
taosArrayDestroy(pPart->rowIds);
}
SOperatorInfo* createStreamPartitionOperatorInfo(SOperatorInfo* downstream, SStreamPartitionPhysiNode* pPartNode,
SExecTaskInfo* pTaskInfo) {
int32_t code = TSDB_CODE_SUCCESS;
SStreamPartitionOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SStreamPartitionOperatorInfo));
SOperatorInfo* pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
if (pInfo == NULL || pOperator == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _error;
}
pInfo->partitionSup.pGroupCols = extractPartitionColInfo(pPartNode->part.pPartitionKeys);
if (pPartNode->part.pExprs != NULL) {
int32_t num = 0;
SExprInfo* pCalExprInfo = createExprInfo(pPartNode->part.pExprs, NULL, &num);
code = initExprSupp(&pInfo->scalarSup, pCalExprInfo, num, &pTaskInfo->storageAPI.functionStore);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
}
pInfo->tbnameCalSup.numOfExprs = 0;
if (pPartNode->pSubtable != NULL) {
SExprInfo* pSubTableExpr = taosMemoryCalloc(1, sizeof(SExprInfo));
if (pSubTableExpr == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _error;
}
pInfo->tbnameCalSup.pExprInfo = pSubTableExpr;
createExprFromOneNode(pSubTableExpr, pPartNode->pSubtable, 0);
code = initExprSupp(&pInfo->tbnameCalSup, pSubTableExpr, 1, &pTaskInfo->storageAPI.functionStore);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
}
pInfo->tagCalSup.numOfExprs = 0;
if (pPartNode->pTags != NULL) {
int32_t numOfTags;
SExprInfo* pTagExpr = createExpr(pPartNode->pTags, &numOfTags);
if (pTagExpr == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _error;
}
if (initExprSupp(&pInfo->tagCalSup, pTagExpr, numOfTags, &pTaskInfo->storageAPI.functionStore) != 0) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _error;
}
}
if (pInfo->tbnameCalSup.numOfExprs != 0 || pInfo->tagCalSup.numOfExprs != 0) {
pInfo->pCreateTbRes = buildCreateTableBlock(&pInfo->tbnameCalSup, &pInfo->tagCalSup);
} else {
pInfo->pCreateTbRes = NULL;
}
int32_t keyLen = 0;
code = initGroupOptrInfo(&pInfo->partitionSup.pGroupColVals, &keyLen, &pInfo->partitionSup.keyBuf,
pInfo->partitionSup.pGroupCols);
if (code != TSDB_CODE_SUCCESS) {
goto _error;
}
pInfo->partitionSup.needCalc = true;
pInfo->binfo.pRes = createDataBlockFromDescNode(pPartNode->part.node.pOutputDataBlockDesc);
if (pInfo->binfo.pRes == NULL) {
code = TSDB_CODE_OUT_OF_MEMORY;
goto _error;
}
blockDataEnsureCapacity(pInfo->binfo.pRes, 4096);
pInfo->parIte = NULL;
pInfo->pTbNameIte = NULL;
pInfo->pInputDataBlock = NULL;
_hash_fn_t hashFn = taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY);
pInfo->pPartitions = taosHashInit(1024, hashFn, false, HASH_NO_LOCK);
taosHashSetFreeFp(pInfo->pPartitions, freePartItem);
pInfo->tsColIndex = 0;
pInfo->pDelRes = createSpecialDataBlock(STREAM_DELETE_RESULT);
int32_t numOfCols = 0;
SExprInfo* pExprInfo = createExprInfo(pPartNode->part.pTargets, NULL, &numOfCols);
setOperatorInfo(pOperator, "StreamPartitionOperator", QUERY_NODE_PHYSICAL_PLAN_STREAM_PARTITION, false, OP_NOT_OPENED,
pInfo, pTaskInfo);
pOperator->exprSupp.numOfExprs = numOfCols;
pOperator->exprSupp.pExprInfo = pExprInfo;
pOperator->fpSet = createOperatorFpSet(optrDummyOpenFn, doStreamHashPartition, NULL,
destroyStreamPartitionOperatorInfo, optrDefaultBufFn, NULL);
setOperatorStreamStateFn(pOperator, streamOpReleaseState, streamOpReloadState);
initParDownStream(downstream, &pInfo->partitionSup, &pInfo->scalarSup);
code = appendDownstream(pOperator, &downstream, 1);
return pOperator;
_error:
pTaskInfo->code = code;
destroyStreamPartitionOperatorInfo(pInfo);
taosMemoryFreeClear(pOperator);
return NULL;
}
SArray* extractColumnInfo(SNodeList* pNodeList) {
size_t numOfCols = LIST_LENGTH(pNodeList);
SArray* pList = taosArrayInit(numOfCols, sizeof(SColumn));
if (pList == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
for (int32_t i = 0; i < numOfCols; ++i) {
STargetNode* pNode = (STargetNode*)nodesListGetNode(pNodeList, i);
if (nodeType(pNode->pExpr) == QUERY_NODE_COLUMN) {
SColumnNode* pColNode = (SColumnNode*)pNode->pExpr;
SColumn c = extractColumnFromColumnNode(pColNode);
taosArrayPush(pList, &c);
} else if (nodeType(pNode->pExpr) == QUERY_NODE_VALUE) {
SValueNode* pValNode = (SValueNode*)pNode->pExpr;
SColumn c = {0};
c.slotId = pNode->slotId;
c.colId = pNode->slotId;
c.type = pValNode->node.type;
c.bytes = pValNode->node.resType.bytes;
c.scale = pValNode->node.resType.scale;
c.precision = pValNode->node.resType.precision;
taosArrayPush(pList, &c);
}
}
return pList;
}
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