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homework-jianmu/source/libs/executor/src/executorInt.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 "functionMgt.h"
#include "os.h"
#include "querynodes.h"
#include "tfill.h"
#include "tname.h"
#include "tdatablock.h"
#include "tmsg.h"
#include "ttime.h"
#include "executorInt.h"
#include "index.h"
#include "operator.h"
#include "query.h"
#include "querytask.h"
#include "storageapi.h"
#include "tcompare.h"
#include "thash.h"
#include "ttypes.h"
#define SET_REVERSE_SCAN_FLAG(runtime) ((runtime)->scanFlag = REVERSE_SCAN)
#define GET_FORWARD_DIRECTION_FACTOR(ord) (((ord) == TSDB_ORDER_ASC) ? QUERY_ASC_FORWARD_STEP : QUERY_DESC_FORWARD_STEP)
#if 0
static UNUSED_FUNC void *u_malloc (size_t __size) {
uint32_t v = taosRand();
if (v % 1000 <= 0) {
return NULL;
} else {
return taosMemoryMalloc(__size);
}
}
static UNUSED_FUNC void* u_calloc(size_t num, size_t __size) {
uint32_t v = taosRand();
if (v % 1000 <= 0) {
return NULL;
} else {
return taosMemoryCalloc(num, __size);
}
}
static UNUSED_FUNC void* u_realloc(void* p, size_t __size) {
uint32_t v = taosRand();
if (v % 5 <= 1) {
return NULL;
} else {
return taosMemoryRealloc(p, __size);
}
}
#define calloc u_calloc
#define malloc u_malloc
#define realloc u_realloc
#endif
static void setBlockSMAInfo(SqlFunctionCtx* pCtx, SExprInfo* pExpr, SSDataBlock* pBlock);
static void initCtxOutputBuffer(SqlFunctionCtx* pCtx, int32_t size);
static void doApplyScalarCalculation(SOperatorInfo* pOperator, SSDataBlock* pBlock, int32_t order, int32_t scanFlag);
static void extractQualifiedTupleByFilterResult(SSDataBlock* pBlock, const SColumnInfoData* p, int32_t status);
static int32_t doSetInputDataBlock(SExprSupp* pExprSup, SSDataBlock* pBlock, int32_t order, int32_t scanFlag,
bool createDummyCol);
static int32_t doCopyToSDataBlock(SExecTaskInfo* pTaskInfo, SSDataBlock* pBlock, SExprSupp* pSup, SDiskbasedBuf* pBuf,
SGroupResInfo* pGroupResInfo, int32_t threshold, bool ignoreGroup);
SResultRow* getNewResultRow(SDiskbasedBuf* pResultBuf, int32_t* currentPageId, int32_t interBufSize) {
SFilePage* pData = NULL;
// in the first scan, new space needed for results
int32_t pageId = -1;
if (*currentPageId == -1) {
pData = getNewBufPage(pResultBuf, &pageId);
pData->num = sizeof(SFilePage);
} else {
pData = getBufPage(pResultBuf, *currentPageId);
if (pData == NULL) {
qError("failed to get buffer, code:%s", tstrerror(terrno));
return NULL;
}
pageId = *currentPageId;
if (pData->num + interBufSize > getBufPageSize(pResultBuf)) {
// release current page first, and prepare the next one
releaseBufPage(pResultBuf, pData);
pData = getNewBufPage(pResultBuf, &pageId);
if (pData != NULL) {
pData->num = sizeof(SFilePage);
}
}
}
if (pData == NULL) {
return NULL;
}
setBufPageDirty(pData, true);
// set the number of rows in current disk page
SResultRow* pResultRow = (SResultRow*)((char*)pData + pData->num);
memset((char*)pResultRow, 0, interBufSize);
pResultRow->pageId = pageId;
pResultRow->offset = (int32_t)pData->num;
*currentPageId = pageId;
pData->num += interBufSize;
return pResultRow;
}
/**
* the struct of key in hash table
* +----------+---------------+
* | group id | key data |
* | 8 bytes | actual length |
* +----------+---------------+
*/
SResultRow* doSetResultOutBufByKey(SDiskbasedBuf* pResultBuf, SResultRowInfo* pResultRowInfo, char* pData,
int16_t bytes, bool masterscan, uint64_t groupId, SExecTaskInfo* pTaskInfo,
bool isIntervalQuery, SAggSupporter* pSup, bool keepGroup) {
SET_RES_WINDOW_KEY(pSup->keyBuf, pData, bytes, groupId);
if (!keepGroup) {
*(uint64_t*)pSup->keyBuf = calcGroupId(pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes));
}
SResultRowPosition* p1 =
(SResultRowPosition*)tSimpleHashGet(pSup->pResultRowHashTable, pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes));
SResultRow* pResult = NULL;
// in case of repeat scan/reverse scan, no new time window added.
if (isIntervalQuery) {
if (p1 != NULL) { // the *p1 may be NULL in case of sliding+offset exists.
pResult = getResultRowByPos(pResultBuf, p1, true);
if (NULL == pResult) {
T_LONG_JMP(pTaskInfo->env, terrno);
}
ASSERT(pResult->pageId == p1->pageId && pResult->offset == p1->offset);
}
} else {
// In case of group by column query, the required SResultRow object must be existInCurrentResusltRowInfo in the
// pResultRowInfo object.
if (p1 != NULL) {
// todo
pResult = getResultRowByPos(pResultBuf, p1, true);
if (NULL == pResult) {
T_LONG_JMP(pTaskInfo->env, terrno);
}
ASSERT(pResult->pageId == p1->pageId && pResult->offset == p1->offset);
}
}
// 1. close current opened time window
if (pResultRowInfo->cur.pageId != -1 && ((pResult == NULL) || (pResult->pageId != pResultRowInfo->cur.pageId))) {
SResultRowPosition pos = pResultRowInfo->cur;
SFilePage* pPage = getBufPage(pResultBuf, pos.pageId);
if (pPage == NULL) {
qError("failed to get buffer, code:%s, %s", tstrerror(terrno), GET_TASKID(pTaskInfo));
T_LONG_JMP(pTaskInfo->env, terrno);
}
releaseBufPage(pResultBuf, pPage);
}
// allocate a new buffer page
if (pResult == NULL) {
pResult = getNewResultRow(pResultBuf, &pSup->currentPageId, pSup->resultRowSize);
if (pResult == NULL) {
T_LONG_JMP(pTaskInfo->env, terrno);
}
// add a new result set for a new group
SResultRowPosition pos = {.pageId = pResult->pageId, .offset = pResult->offset};
tSimpleHashPut(pSup->pResultRowHashTable, pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes), &pos,
sizeof(SResultRowPosition));
}
// 2. set the new time window to be the new active time window
pResultRowInfo->cur = (SResultRowPosition){.pageId = pResult->pageId, .offset = pResult->offset};
// too many time window in query
if (pTaskInfo->execModel == OPTR_EXEC_MODEL_BATCH &&
tSimpleHashGetSize(pSup->pResultRowHashTable) > MAX_INTERVAL_TIME_WINDOW) {
T_LONG_JMP(pTaskInfo->env, TSDB_CODE_QRY_TOO_MANY_TIMEWINDOW);
}
return pResult;
}
// query_range_start, query_range_end, window_duration, window_start, window_end
void initExecTimeWindowInfo(SColumnInfoData* pColData, STimeWindow* pQueryWindow) {
pColData->info.type = TSDB_DATA_TYPE_TIMESTAMP;
pColData->info.bytes = sizeof(int64_t);
colInfoDataEnsureCapacity(pColData, 5, false);
colDataSetInt64(pColData, 0, &pQueryWindow->skey);
colDataSetInt64(pColData, 1, &pQueryWindow->ekey);
int64_t interval = 0;
colDataSetInt64(pColData, 2, &interval); // this value may be variable in case of 'n' and 'y'.
colDataSetInt64(pColData, 3, &pQueryWindow->skey);
colDataSetInt64(pColData, 4, &pQueryWindow->ekey);
}
static void doSetInputDataBlockInfo(SExprSupp* pExprSup, SSDataBlock* pBlock, int32_t order, int32_t scanFlag) {
SqlFunctionCtx* pCtx = pExprSup->pCtx;
for (int32_t i = 0; i < pExprSup->numOfExprs; ++i) {
pCtx[i].order = order;
pCtx[i].input.numOfRows = pBlock->info.rows;
setBlockSMAInfo(&pCtx[i], &pExprSup->pExprInfo[i], pBlock);
pCtx[i].pSrcBlock = pBlock;
pCtx[i].scanFlag = scanFlag;
}
}
void setInputDataBlock(SExprSupp* pExprSup, SSDataBlock* pBlock, int32_t order, int32_t scanFlag, bool createDummyCol) {
if (pBlock->pBlockAgg != NULL) {
doSetInputDataBlockInfo(pExprSup, pBlock, order, scanFlag);
} else {
doSetInputDataBlock(pExprSup, pBlock, order, scanFlag, createDummyCol);
}
}
static int32_t doCreateConstantValColumnInfo(SInputColumnInfoData* pInput, SFunctParam* pFuncParam, int32_t paramIndex,
int32_t numOfRows) {
SColumnInfoData* pColInfo = NULL;
if (pInput->pData[paramIndex] == NULL) {
pColInfo = taosMemoryCalloc(1, sizeof(SColumnInfoData));
if (pColInfo == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
// Set the correct column info (data type and bytes)
pColInfo->info.type = pFuncParam->param.nType;
pColInfo->info.bytes = pFuncParam->param.nLen;
pInput->pData[paramIndex] = pColInfo;
} else {
pColInfo = pInput->pData[paramIndex];
}
colInfoDataEnsureCapacity(pColInfo, numOfRows, false);
int8_t type = pFuncParam->param.nType;
if (type == TSDB_DATA_TYPE_BIGINT || type == TSDB_DATA_TYPE_UBIGINT) {
int64_t v = pFuncParam->param.i;
for (int32_t i = 0; i < numOfRows; ++i) {
colDataSetInt64(pColInfo, i, &v);
}
} else if (type == TSDB_DATA_TYPE_DOUBLE) {
double v = pFuncParam->param.d;
for (int32_t i = 0; i < numOfRows; ++i) {
colDataSetDouble(pColInfo, i, &v);
}
} else if (type == TSDB_DATA_TYPE_VARCHAR || type == TSDB_DATA_TYPE_GEOMETRY) {
char* tmp = taosMemoryMalloc(pFuncParam->param.nLen + VARSTR_HEADER_SIZE);
STR_WITH_SIZE_TO_VARSTR(tmp, pFuncParam->param.pz, pFuncParam->param.nLen);
for (int32_t i = 0; i < numOfRows; ++i) {
colDataSetVal(pColInfo, i, tmp, false);
}
taosMemoryFree(tmp);
}
return TSDB_CODE_SUCCESS;
}
static int32_t doSetInputDataBlock(SExprSupp* pExprSup, SSDataBlock* pBlock, int32_t order, int32_t scanFlag,
bool createDummyCol) {
int32_t code = TSDB_CODE_SUCCESS;
SqlFunctionCtx* pCtx = pExprSup->pCtx;
for (int32_t i = 0; i < pExprSup->numOfExprs; ++i) {
pCtx[i].order = order;
pCtx[i].input.numOfRows = pBlock->info.rows;
pCtx[i].pSrcBlock = pBlock;
pCtx[i].scanFlag = scanFlag;
SInputColumnInfoData* pInput = &pCtx[i].input;
pInput->uid = pBlock->info.id.uid;
pInput->colDataSMAIsSet = false;
SExprInfo* pOneExpr = &pExprSup->pExprInfo[i];
for (int32_t j = 0; j < pOneExpr->base.numOfParams; ++j) {
SFunctParam* pFuncParam = &pOneExpr->base.pParam[j];
if (pFuncParam->type == FUNC_PARAM_TYPE_COLUMN) {
int32_t slotId = pFuncParam->pCol->slotId;
pInput->pData[j] = taosArrayGet(pBlock->pDataBlock, slotId);
pInput->totalRows = pBlock->info.rows;
pInput->numOfRows = pBlock->info.rows;
pInput->startRowIndex = 0;
// NOTE: the last parameter is the primary timestamp column
// todo: refactor this
if (fmIsImplicitTsFunc(pCtx[i].functionId) && (j == pOneExpr->base.numOfParams - 1)) {
pInput->pPTS = pInput->pData[j]; // in case of merge function, this is not always the ts column data.
}
ASSERT(pInput->pData[j] != NULL);
} else if (pFuncParam->type == FUNC_PARAM_TYPE_VALUE) {
// todo avoid case: top(k, 12), 12 is the value parameter.
// sum(11), 11 is also the value parameter.
if (createDummyCol && pOneExpr->base.numOfParams == 1) {
pInput->totalRows = pBlock->info.rows;
pInput->numOfRows = pBlock->info.rows;
pInput->startRowIndex = 0;
code = doCreateConstantValColumnInfo(pInput, pFuncParam, j, pBlock->info.rows);
if (code != TSDB_CODE_SUCCESS) {
return code;
}
}
}
}
}
return code;
}
bool functionNeedToExecute(SqlFunctionCtx* pCtx) {
struct SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
// in case of timestamp column, always generated results.
int32_t functionId = pCtx->functionId;
if (functionId == -1) {
return false;
}
if (pCtx->scanFlag == PRE_SCAN) {
return fmIsRepeatScanFunc(pCtx->functionId);
}
if (isRowEntryCompleted(pResInfo)) {
return false;
}
return true;
}
static int32_t doCreateConstantValColumnSMAInfo(SInputColumnInfoData* pInput, SFunctParam* pFuncParam, int32_t type,
int32_t paramIndex, int32_t numOfRows) {
if (pInput->pData[paramIndex] == NULL) {
pInput->pData[paramIndex] = taosMemoryCalloc(1, sizeof(SColumnInfoData));
if (pInput->pData[paramIndex] == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
// Set the correct column info (data type and bytes)
pInput->pData[paramIndex]->info.type = type;
pInput->pData[paramIndex]->info.bytes = tDataTypes[type].bytes;
}
SColumnDataAgg* da = NULL;
if (pInput->pColumnDataAgg[paramIndex] == NULL) {
da = taosMemoryCalloc(1, sizeof(SColumnDataAgg));
pInput->pColumnDataAgg[paramIndex] = da;
if (da == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
} else {
da = pInput->pColumnDataAgg[paramIndex];
}
if (type == TSDB_DATA_TYPE_BIGINT) {
int64_t v = pFuncParam->param.i;
*da = (SColumnDataAgg){.numOfNull = 0, .min = v, .max = v, .sum = v * numOfRows};
} else if (type == TSDB_DATA_TYPE_DOUBLE) {
double v = pFuncParam->param.d;
*da = (SColumnDataAgg){.numOfNull = 0};
*(double*)&da->min = v;
*(double*)&da->max = v;
*(double*)&da->sum = v * numOfRows;
} else if (type == TSDB_DATA_TYPE_BOOL) { // todo validate this data type
bool v = pFuncParam->param.i;
*da = (SColumnDataAgg){.numOfNull = 0};
*(bool*)&da->min = 0;
*(bool*)&da->max = v;
*(bool*)&da->sum = v * numOfRows;
} else if (type == TSDB_DATA_TYPE_TIMESTAMP) {
// do nothing
} else {
qError("invalid constant type for sma info");
}
return TSDB_CODE_SUCCESS;
}
void setBlockSMAInfo(SqlFunctionCtx* pCtx, SExprInfo* pExprInfo, SSDataBlock* pBlock) {
int32_t numOfRows = pBlock->info.rows;
SInputColumnInfoData* pInput = &pCtx->input;
pInput->numOfRows = numOfRows;
pInput->totalRows = numOfRows;
if (pBlock->pBlockAgg != NULL) {
pInput->colDataSMAIsSet = true;
for (int32_t j = 0; j < pExprInfo->base.numOfParams; ++j) {
SFunctParam* pFuncParam = &pExprInfo->base.pParam[j];
if (pFuncParam->type == FUNC_PARAM_TYPE_COLUMN) {
int32_t slotId = pFuncParam->pCol->slotId;
pInput->pColumnDataAgg[j] = pBlock->pBlockAgg[slotId];
if (pInput->pColumnDataAgg[j] == NULL) {
pInput->colDataSMAIsSet = false;
}
// Here we set the column info data since the data type for each column data is required, but
// the data in the corresponding SColumnInfoData will not be used.
pInput->pData[j] = taosArrayGet(pBlock->pDataBlock, slotId);
} else if (pFuncParam->type == FUNC_PARAM_TYPE_VALUE) {
doCreateConstantValColumnSMAInfo(pInput, pFuncParam, pFuncParam->param.nType, j, pBlock->info.rows);
}
}
} else {
pInput->colDataSMAIsSet = false;
}
}
/////////////////////////////////////////////////////////////////////////////////////////////
STimeWindow getAlignQueryTimeWindow(const SInterval* pInterval, int64_t key) {
STimeWindow win = {0};
win.skey = taosTimeTruncate(key, pInterval);
/*
* if the realSkey > INT64_MAX - pInterval->interval, the query duration between
* realSkey and realEkey must be less than one interval.Therefore, no need to adjust the query ranges.
*/
win.ekey = taosTimeAdd(win.skey, pInterval->interval, pInterval->intervalUnit, pInterval->precision) - 1;
if (win.ekey < win.skey) {
win.ekey = INT64_MAX;
}
return win;
}
void setResultRowInitCtx(SResultRow* pResult, SqlFunctionCtx* pCtx, int32_t numOfOutput, int32_t* rowEntryInfoOffset) {
bool init = false;
for (int32_t i = 0; i < numOfOutput; ++i) {
pCtx[i].resultInfo = getResultEntryInfo(pResult, i, rowEntryInfoOffset);
if (init) {
continue;
}
struct SResultRowEntryInfo* pResInfo = pCtx[i].resultInfo;
if (isRowEntryCompleted(pResInfo) && isRowEntryInitialized(pResInfo)) {
continue;
}
if (pCtx[i].isPseudoFunc) {
continue;
}
if (!pResInfo->initialized) {
if (pCtx[i].functionId != -1) {
pCtx[i].fpSet.init(&pCtx[i], pResInfo);
} else {
pResInfo->initialized = true;
}
} else {
init = true;
}
}
}
void clearResultRowInitFlag(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
for (int32_t i = 0; i < numOfOutput; ++i) {
SResultRowEntryInfo* pResInfo = pCtx[i].resultInfo;
if (pResInfo == NULL) {
continue;
}
pResInfo->initialized = false;
pResInfo->numOfRes = 0;
pResInfo->isNullRes = 0;
pResInfo->complete = false;
}
}
int32_t doFilter(SSDataBlock* pBlock, SFilterInfo* pFilterInfo, SColMatchInfo* pColMatchInfo) {
if (pFilterInfo == NULL || pBlock->info.rows == 0) {
return TSDB_CODE_SUCCESS;
}
SFilterColumnParam param1 = {.numOfCols = taosArrayGetSize(pBlock->pDataBlock), .pDataBlock = pBlock->pDataBlock};
SColumnInfoData* p = NULL;
int32_t code = filterSetDataFromSlotId(pFilterInfo, &param1);
if (code != TSDB_CODE_SUCCESS) {
goto _err;
}
int32_t status = 0;
code = filterExecute(pFilterInfo, pBlock, &p, NULL, param1.numOfCols, &status);
if (code != TSDB_CODE_SUCCESS) {
goto _err;
}
extractQualifiedTupleByFilterResult(pBlock, p, status);
if (pColMatchInfo != NULL) {
size_t size = taosArrayGetSize(pColMatchInfo->pList);
for (int32_t i = 0; i < size; ++i) {
SColMatchItem* pInfo = taosArrayGet(pColMatchInfo->pList, i);
if (pInfo->colId == PRIMARYKEY_TIMESTAMP_COL_ID) {
SColumnInfoData* pColData = taosArrayGet(pBlock->pDataBlock, pInfo->dstSlotId);
if (pColData->info.type == TSDB_DATA_TYPE_TIMESTAMP) {
blockDataUpdateTsWindow(pBlock, pInfo->dstSlotId);
break;
}
}
}
}
code = TSDB_CODE_SUCCESS;
_err:
colDataDestroy(p);
taosMemoryFree(p);
return code;
}
void extractQualifiedTupleByFilterResult(SSDataBlock* pBlock, const SColumnInfoData* p, int32_t status) {
int8_t* pIndicator = (int8_t*)p->pData;
if (status == FILTER_RESULT_ALL_QUALIFIED) {
// here nothing needs to be done
} else if (status == FILTER_RESULT_NONE_QUALIFIED) {
pBlock->info.rows = 0;
} else if (status == FILTER_RESULT_PARTIAL_QUALIFIED) {
trimDataBlock(pBlock, pBlock->info.rows, (bool*)pIndicator);
} else {
qError("unknown filter result type: %d", status);
}
}
void doUpdateNumOfRows(SqlFunctionCtx* pCtx, SResultRow* pRow, int32_t numOfExprs, const int32_t* rowEntryOffset) {
bool returnNotNull = false;
for (int32_t j = 0; j < numOfExprs; ++j) {
SResultRowEntryInfo* pResInfo = getResultEntryInfo(pRow, j, rowEntryOffset);
if (!isRowEntryInitialized(pResInfo)) {
continue;
} else {
}
if (pRow->numOfRows < pResInfo->numOfRes) {
pRow->numOfRows = pResInfo->numOfRes;
}
if (pCtx[j].isNotNullFunc) {
returnNotNull = true;
}
}
// if all expr skips all blocks, e.g. all null inputs for max function, output one row in final result.
// except for first/last, which require not null output, output no rows
if (pRow->numOfRows == 0 && !returnNotNull) {
pRow->numOfRows = 1;
}
}
void copyResultrowToDataBlock(SExprInfo* pExprInfo, int32_t numOfExprs, SResultRow* pRow, SqlFunctionCtx* pCtx,
SSDataBlock* pBlock, const int32_t* rowEntryOffset, SExecTaskInfo* pTaskInfo) {
for (int32_t j = 0; j < numOfExprs; ++j) {
int32_t slotId = pExprInfo[j].base.resSchema.slotId;
pCtx[j].resultInfo = getResultEntryInfo(pRow, j, rowEntryOffset);
if (pCtx[j].fpSet.finalize) {
if (strcmp(pCtx[j].pExpr->pExpr->_function.functionName, "_group_key") == 0) {
// for groupkey along with functions that output multiple lines(e.g. Histogram)
// need to match groupkey result for each output row of that function.
if (pCtx[j].resultInfo->numOfRes != 0) {
pCtx[j].resultInfo->numOfRes = pRow->numOfRows;
}
}
blockDataEnsureCapacity(pBlock, pBlock->info.rows + pCtx[j].resultInfo->numOfRes);
int32_t code = pCtx[j].fpSet.finalize(&pCtx[j], pBlock);
if (TAOS_FAILED(code)) {
qError("%s build result data block error, code %s", GET_TASKID(pTaskInfo), tstrerror(code));
T_LONG_JMP(pTaskInfo->env, code);
}
} else if (strcmp(pCtx[j].pExpr->pExpr->_function.functionName, "_select_value") == 0) {
// do nothing
} else {
// 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) {
colDataSetVal(pColInfoData, pBlock->info.rows + k, in, pCtx[j].resultInfo->isNullRes);
}
}
}
}
// todo refactor. SResultRow has direct pointer in miainfo
int32_t finalizeResultRows(SDiskbasedBuf* pBuf, SResultRowPosition* resultRowPosition, SExprSupp* pSup,
SSDataBlock* pBlock, SExecTaskInfo* pTaskInfo) {
SFilePage* page = getBufPage(pBuf, resultRowPosition->pageId);
if (page == NULL) {
qError("failed to get buffer, code:%s, %s", tstrerror(terrno), GET_TASKID(pTaskInfo));
T_LONG_JMP(pTaskInfo->env, terrno);
}
SResultRow* pRow = (SResultRow*)((char*)page + resultRowPosition->offset);
SqlFunctionCtx* pCtx = pSup->pCtx;
SExprInfo* pExprInfo = pSup->pExprInfo;
const int32_t* rowEntryOffset = pSup->rowEntryInfoOffset;
doUpdateNumOfRows(pCtx, pRow, pSup->numOfExprs, rowEntryOffset);
if (pRow->numOfRows == 0) {
releaseBufPage(pBuf, page);
return 0;
}
int32_t size = pBlock->info.capacity;
while (pBlock->info.rows + pRow->numOfRows > size) {
size = size * 1.25;
}
int32_t code = blockDataEnsureCapacity(pBlock, size);
if (TAOS_FAILED(code)) {
releaseBufPage(pBuf, page);
qError("%s ensure result data capacity failed, code %s", GET_TASKID(pTaskInfo), tstrerror(code));
T_LONG_JMP(pTaskInfo->env, code);
}
copyResultrowToDataBlock(pExprInfo, pSup->numOfExprs, pRow, pCtx, pBlock, rowEntryOffset, pTaskInfo);
releaseBufPage(pBuf, page);
pBlock->info.rows += pRow->numOfRows;
return 0;
}
int32_t doCopyToSDataBlock(SExecTaskInfo* pTaskInfo, SSDataBlock* pBlock, SExprSupp* pSup, SDiskbasedBuf* pBuf,
SGroupResInfo* pGroupResInfo, int32_t threshold, bool ignoreGroup) {
SExprInfo* pExprInfo = pSup->pExprInfo;
int32_t numOfExprs = pSup->numOfExprs;
int32_t* rowEntryOffset = pSup->rowEntryInfoOffset;
SqlFunctionCtx* pCtx = pSup->pCtx;
int32_t numOfRows = getNumOfTotalRes(pGroupResInfo);
for (int32_t i = pGroupResInfo->index; i < numOfRows; i += 1) {
SResKeyPos* pPos = taosArrayGetP(pGroupResInfo->pRows, i);
SFilePage* page = getBufPage(pBuf, pPos->pos.pageId);
if (page == NULL) {
qError("failed to get buffer, code:%s, %s", tstrerror(terrno), GET_TASKID(pTaskInfo));
T_LONG_JMP(pTaskInfo->env, terrno);
}
SResultRow* pRow = (SResultRow*)((char*)page + pPos->pos.offset);
doUpdateNumOfRows(pCtx, pRow, numOfExprs, rowEntryOffset);
// no results, continue to check the next one
if (pRow->numOfRows == 0) {
pGroupResInfo->index += 1;
releaseBufPage(pBuf, page);
continue;
}
if (!ignoreGroup) {
if (pBlock->info.id.groupId == 0) {
pBlock->info.id.groupId = pPos->groupId;
} else {
// current value belongs to different group, it can't be packed into one datablock
if (pBlock->info.id.groupId != pPos->groupId) {
releaseBufPage(pBuf, page);
break;
}
}
}
if (pBlock->info.rows + pRow->numOfRows > pBlock->info.capacity) {
uint32_t newSize = pBlock->info.rows + pRow->numOfRows + ((numOfRows - i) > 1 ? 1 : 0);
blockDataEnsureCapacity(pBlock, newSize);
qDebug("datablock capacity not sufficient, expand to required:%d, current capacity:%d, %s", newSize,
pBlock->info.capacity, GET_TASKID(pTaskInfo));
// todo set the pOperator->resultInfo size
}
pGroupResInfo->index += 1;
copyResultrowToDataBlock(pExprInfo, numOfExprs, pRow, pCtx, pBlock, rowEntryOffset, pTaskInfo);
releaseBufPage(pBuf, page);
pBlock->info.rows += pRow->numOfRows;
if (pBlock->info.rows >= threshold) {
break;
}
}
qDebug("%s result generated, rows:%" PRId64 ", groupId:%" PRIu64, GET_TASKID(pTaskInfo), pBlock->info.rows,
pBlock->info.id.groupId);
pBlock->info.dataLoad = 1;
blockDataUpdateTsWindow(pBlock, 0);
return 0;
}
void doBuildStreamResBlock(SOperatorInfo* pOperator, SOptrBasicInfo* pbInfo, SGroupResInfo* pGroupResInfo,
SDiskbasedBuf* pBuf) {
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SStorageAPI* pAPI = &pTaskInfo->storageAPI;
SSDataBlock* pBlock = pbInfo->pRes;
// set output datablock version
pBlock->info.version = pTaskInfo->version;
blockDataCleanup(pBlock);
if (!hasRemainResults(pGroupResInfo)) {
return;
}
// clear the existed group id
pBlock->info.id.groupId = 0;
ASSERT(!pbInfo->mergeResultBlock);
doCopyToSDataBlock(pTaskInfo, pBlock, &pOperator->exprSupp, pBuf, pGroupResInfo, pOperator->resultInfo.threshold,
false);
void* tbname = NULL;
if (pAPI->stateStore.streamStateGetParName((void*)pTaskInfo->streamInfo.pState, pBlock->info.id.groupId, &tbname) <
0) {
pBlock->info.parTbName[0] = 0;
} else {
memcpy(pBlock->info.parTbName, tbname, TSDB_TABLE_NAME_LEN);
}
pAPI->stateStore.streamStateFreeVal(tbname);
}
void doBuildResultDatablock(SOperatorInfo* pOperator, SOptrBasicInfo* pbInfo, SGroupResInfo* pGroupResInfo,
SDiskbasedBuf* pBuf) {
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SSDataBlock* pBlock = pbInfo->pRes;
// set output datablock version
pBlock->info.version = pTaskInfo->version;
blockDataCleanup(pBlock);
if (!hasRemainResults(pGroupResInfo)) {
return;
}
// clear the existed group id
pBlock->info.id.groupId = 0;
if (!pbInfo->mergeResultBlock) {
doCopyToSDataBlock(pTaskInfo, pBlock, &pOperator->exprSupp, pBuf, pGroupResInfo, pOperator->resultInfo.threshold,
false);
} else {
while (hasRemainResults(pGroupResInfo)) {
doCopyToSDataBlock(pTaskInfo, pBlock, &pOperator->exprSupp, pBuf, pGroupResInfo, pOperator->resultInfo.threshold,
true);
if (pBlock->info.rows >= pOperator->resultInfo.threshold) {
break;
}
// clearing group id to continue to merge data that belong to different groups
pBlock->info.id.groupId = 0;
}
// clear the group id info in SSDataBlock, since the client does not need it
pBlock->info.id.groupId = 0;
}
}
void destroyExprInfo(SExprInfo* pExpr, int32_t numOfExprs) {
for (int32_t i = 0; i < numOfExprs; ++i) {
SExprInfo* pExprInfo = &pExpr[i];
for (int32_t j = 0; j < pExprInfo->base.numOfParams; ++j) {
if (pExprInfo->base.pParam[j].type == FUNC_PARAM_TYPE_COLUMN) {
taosMemoryFreeClear(pExprInfo->base.pParam[j].pCol);
} else if (pExprInfo->base.pParam[j].type == FUNC_PARAM_TYPE_VALUE) {
taosVariantDestroy(&pExprInfo->base.pParam[j].param);
}
}
taosMemoryFree(pExprInfo->base.pParam);
taosMemoryFree(pExprInfo->pExpr);
}
}
int32_t getBufferPgSize(int32_t rowSize, uint32_t* defaultPgsz, uint32_t* defaultBufsz) {
*defaultPgsz = 4096;
uint32_t last = *defaultPgsz;
while (*defaultPgsz < rowSize * 4) {
*defaultPgsz <<= 1u;
if (*defaultPgsz < last) {
return TSDB_CODE_INVALID_PARA;
}
last = *defaultPgsz;
}
// The default buffer for each operator in query is 10MB.
// at least four pages need to be in buffer
// TODO: make this variable to be configurable.
*defaultBufsz = 4096 * 2560;
if ((*defaultBufsz) <= (*defaultPgsz)) {
(*defaultBufsz) = (*defaultPgsz) * 4;
if (*defaultBufsz < ((int64_t)(*defaultPgsz)) * 4) {
return TSDB_CODE_INVALID_PARA;
}
}
return 0;
}
void initResultSizeInfo(SResultInfo* pResultInfo, int32_t numOfRows) {
if (numOfRows == 0) {
numOfRows = 4096;
}
pResultInfo->capacity = numOfRows;
pResultInfo->threshold = numOfRows * 0.75;
if (pResultInfo->threshold == 0) {
pResultInfo->threshold = numOfRows;
}
}
void initBasicInfo(SOptrBasicInfo* pInfo, SSDataBlock* pBlock) {
pInfo->pRes = pBlock;
initResultRowInfo(&pInfo->resultRowInfo);
}
static void* destroySqlFunctionCtx(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
if (pCtx == NULL) {
return NULL;
}
for (int32_t i = 0; i < numOfOutput; ++i) {
for (int32_t j = 0; j < pCtx[i].numOfParams; ++j) {
taosVariantDestroy(&pCtx[i].param[j].param);
}
taosMemoryFreeClear(pCtx[i].subsidiaries.pCtx);
taosMemoryFreeClear(pCtx[i].subsidiaries.buf);
taosMemoryFree(pCtx[i].input.pData);
taosMemoryFree(pCtx[i].input.pColumnDataAgg);
if (pCtx[i].udfName != NULL) {
taosMemoryFree(pCtx[i].udfName);
}
}
taosMemoryFreeClear(pCtx);
return NULL;
}
int32_t initExprSupp(SExprSupp* pSup, SExprInfo* pExprInfo, int32_t numOfExpr, SFunctionStateStore* pStore) {
pSup->pExprInfo = pExprInfo;
pSup->numOfExprs = numOfExpr;
if (pSup->pExprInfo != NULL) {
pSup->pCtx = createSqlFunctionCtx(pExprInfo, numOfExpr, &pSup->rowEntryInfoOffset, pStore);
if (pSup->pCtx == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
}
return TSDB_CODE_SUCCESS;
}
void cleanupExprSupp(SExprSupp* pSupp) {
destroySqlFunctionCtx(pSupp->pCtx, pSupp->numOfExprs);
if (pSupp->pExprInfo != NULL) {
destroyExprInfo(pSupp->pExprInfo, pSupp->numOfExprs);
taosMemoryFreeClear(pSupp->pExprInfo);
}
if (pSupp->pFilterInfo != NULL) {
filterFreeInfo(pSupp->pFilterInfo);
pSupp->pFilterInfo = NULL;
}
taosMemoryFree(pSupp->rowEntryInfoOffset);
}
void cleanupBasicInfo(SOptrBasicInfo* pInfo) { pInfo->pRes = blockDataDestroy(pInfo->pRes); }
bool groupbyTbname(SNodeList* pGroupList) {
bool bytbname = false;
if (LIST_LENGTH(pGroupList) == 1) {
SNode* p = nodesListGetNode(pGroupList, 0);
if (p->type == QUERY_NODE_FUNCTION) {
// partition by tbname/group by tbname
bytbname = (strcmp(((struct SFunctionNode*)p)->functionName, "tbname") == 0);
}
}
return bytbname;
}
int32_t createDataSinkParam(SDataSinkNode* pNode, void** pParam, SExecTaskInfo* pTask, SReadHandle* readHandle) {
switch (pNode->type) {
case QUERY_NODE_PHYSICAL_PLAN_QUERY_INSERT: {
SInserterParam* pInserterParam = taosMemoryCalloc(1, sizeof(SInserterParam));
if (NULL == pInserterParam) {
return TSDB_CODE_OUT_OF_MEMORY;
}
pInserterParam->readHandle = readHandle;
*pParam = pInserterParam;
break;
}
case QUERY_NODE_PHYSICAL_PLAN_DELETE: {
SDeleterParam* pDeleterParam = taosMemoryCalloc(1, sizeof(SDeleterParam));
if (NULL == pDeleterParam) {
return TSDB_CODE_OUT_OF_MEMORY;
}
SArray* pInfoList = getTableListInfo(pTask);
STableListInfo* pTableListInfo = taosArrayGetP(pInfoList, 0);
taosArrayDestroy(pInfoList);
pDeleterParam->suid = tableListGetSuid(pTableListInfo);
// TODO extract uid list
int32_t numOfTables = tableListGetSize(pTableListInfo);
pDeleterParam->pUidList = taosArrayInit(numOfTables, sizeof(uint64_t));
if (NULL == pDeleterParam->pUidList) {
taosMemoryFree(pDeleterParam);
return TSDB_CODE_OUT_OF_MEMORY;
}
for (int32_t i = 0; i < numOfTables; ++i) {
STableKeyInfo* pTable = tableListGetInfo(pTableListInfo, i);
taosArrayPush(pDeleterParam->pUidList, &pTable->uid);
}
*pParam = pDeleterParam;
break;
}
default:
break;
}
return TSDB_CODE_SUCCESS;
}
int32_t releaseOutputBuf(void* pState, SWinKey* pKey, SResultRow* pResult, SStateStore* pAPI) {
pAPI->streamStateReleaseBuf(pState, pKey, pResult);
return TSDB_CODE_SUCCESS;
}
int32_t saveSessionDiscBuf(void* pState, SSessionKey* key, void* buf, int32_t size, SStateStore* pAPI) {
pAPI->streamStateSessionPut(pState, key, (const void*)buf, size);
releaseOutputBuf(pState, NULL, (SResultRow*)buf, pAPI);
return TSDB_CODE_SUCCESS;
}
int32_t buildSessionResultDataBlock(SOperatorInfo* pOperator, void* pState, SSDataBlock* pBlock, SExprSupp* pSup,
SGroupResInfo* pGroupResInfo) {
SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
SStorageAPI* pAPI = &pTaskInfo->storageAPI;
SExprInfo* pExprInfo = pSup->pExprInfo;
int32_t numOfExprs = pSup->numOfExprs;
int32_t* rowEntryOffset = pSup->rowEntryInfoOffset;
SqlFunctionCtx* pCtx = pSup->pCtx;
int32_t numOfRows = getNumOfTotalRes(pGroupResInfo);
for (int32_t i = pGroupResInfo->index; i < numOfRows; i += 1) {
SSessionKey* pKey = taosArrayGet(pGroupResInfo->pRows, i);
int32_t size = 0;
void* pVal = NULL;
int32_t code = pAPI->stateStore.streamStateSessionGet(pState, pKey, &pVal, &size);
// ASSERT(code == 0);
if (code == -1) {
// for history
qWarn("===stream===not found session result key:%" PRId64 ", ekey:%" PRId64 ", groupId:%" PRIu64 "",
pKey->win.skey, pKey->win.ekey, pKey->groupId);
pGroupResInfo->index += 1;
continue;
}
SResultRow* pRow = (SResultRow*)pVal;
doUpdateNumOfRows(pCtx, pRow, numOfExprs, rowEntryOffset);
// no results, continue to check the next one
if (pRow->numOfRows == 0) {
pGroupResInfo->index += 1;
releaseOutputBuf(pState, NULL, pRow, &pAPI->stateStore);
continue;
}
if (pBlock->info.id.groupId == 0) {
pBlock->info.id.groupId = pKey->groupId;
void* tbname = NULL;
if (pAPI->stateStore.streamStateGetParName((void*)pTaskInfo->streamInfo.pState, pBlock->info.id.groupId,
&tbname) < 0) {
pBlock->info.parTbName[0] = 0;
} else {
memcpy(pBlock->info.parTbName, tbname, TSDB_TABLE_NAME_LEN);
}
pAPI->stateStore.streamStateFreeVal(tbname);
} else {
// current value belongs to different group, it can't be packed into one datablock
if (pBlock->info.id.groupId != pKey->groupId) {
releaseOutputBuf(pState, NULL, pRow, &pAPI->stateStore);
break;
}
}
if (pBlock->info.rows + pRow->numOfRows > pBlock->info.capacity) {
ASSERT(pBlock->info.rows > 0);
releaseOutputBuf(pState, NULL, pRow, &pAPI->stateStore);
break;
}
pGroupResInfo->index += 1;
for (int32_t j = 0; j < numOfExprs; ++j) {
int32_t slotId = pExprInfo[j].base.resSchema.slotId;
pCtx[j].resultInfo = getResultEntryInfo(pRow, j, rowEntryOffset);
if (pCtx[j].fpSet.finalize) {
int32_t code1 = pCtx[j].fpSet.finalize(&pCtx[j], pBlock);
if (TAOS_FAILED(code1)) {
qError("%s build result data block error, code %s", GET_TASKID(pTaskInfo), tstrerror(code1));
T_LONG_JMP(pTaskInfo->env, code1);
}
} 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., _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) {
colDataSetVal(pColInfoData, pBlock->info.rows + k, in, pCtx[j].resultInfo->isNullRes);
}
}
}
pBlock->info.dataLoad = 1;
pBlock->info.rows += pRow->numOfRows;
releaseOutputBuf(pState, NULL, pRow, &pAPI->stateStore);
}
blockDataUpdateTsWindow(pBlock, 0);
return TSDB_CODE_SUCCESS;
}
void streamOpReleaseState(SOperatorInfo* pOperator) {
SOperatorInfo* downstream = pOperator->pDownstream[0];
if (downstream->fpSet.releaseStreamStateFn) {
downstream->fpSet.releaseStreamStateFn(downstream);
}
}
void streamOpReloadState(SOperatorInfo* pOperator) {
SOperatorInfo* downstream = pOperator->pDownstream[0];
if (downstream->fpSet.reloadStreamStateFn) {
downstream->fpSet.reloadStreamStateFn(downstream);
}
}
void freeOperatorParamImpl(SOperatorParam* pParam, SOperatorParamType type) {
int32_t childrenNum = taosArrayGetSize(pParam->pChildren);
for (int32_t i = 0; i < childrenNum; ++i) {
SOperatorParam* pChild = taosArrayGetP(pParam->pChildren, i);
freeOperatorParam(pChild, type);
}
taosArrayDestroy(pParam->pChildren);
taosMemoryFree(pParam->value);
taosMemoryFree(pParam);
}
void freeExchangeGetBasicOperatorParam(void* pParam) {
SExchangeOperatorBasicParam* pBasic = (SExchangeOperatorBasicParam*)pParam;
taosArrayDestroy(pBasic->uidList);
}
void freeExchangeGetOperatorParam(SOperatorParam* pParam) {
SExchangeOperatorParam* pExcParam = (SExchangeOperatorParam*)pParam->value;
if (pExcParam->multiParams) {
SExchangeOperatorBatchParam* pExcBatch = (SExchangeOperatorBatchParam*)pParam->value;
tSimpleHashCleanup(pExcBatch->pBatchs);
} else {
freeExchangeGetBasicOperatorParam(&pExcParam->basic);
}
freeOperatorParamImpl(pParam, OP_GET_PARAM);
}
void freeExchangeNotifyOperatorParam(SOperatorParam* pParam) {
freeOperatorParamImpl(pParam, OP_NOTIFY_PARAM);
}
void freeGroupCacheGetOperatorParam(SOperatorParam* pParam) {
freeOperatorParamImpl(pParam, OP_GET_PARAM);
}
void freeGroupCacheNotifyOperatorParam(SOperatorParam* pParam) {
freeOperatorParamImpl(pParam, OP_NOTIFY_PARAM);
}
void freeMergeJoinGetOperatorParam(SOperatorParam* pParam) {
freeOperatorParamImpl(pParam, OP_GET_PARAM);
}
void freeMergeJoinNotifyOperatorParam(SOperatorParam* pParam) {
freeOperatorParamImpl(pParam, OP_NOTIFY_PARAM);
}
void freeTableScanGetOperatorParam(SOperatorParam* pParam) {
STableScanOperatorParam* pTableScanParam = (STableScanOperatorParam*)pParam->value;
taosArrayDestroy(pTableScanParam->pUidList);
freeOperatorParamImpl(pParam, OP_GET_PARAM);
}
void freeTableScanNotifyOperatorParam(SOperatorParam* pParam) {
freeOperatorParamImpl(pParam, OP_NOTIFY_PARAM);
}
void freeOperatorParam(SOperatorParam* pParam, SOperatorParamType type) {
if (NULL == pParam) {
return;
}
switch (pParam->opType) {
case QUERY_NODE_PHYSICAL_PLAN_EXCHANGE:
type == OP_GET_PARAM ? freeExchangeGetOperatorParam(pParam) : freeExchangeNotifyOperatorParam(pParam);
break;
case QUERY_NODE_PHYSICAL_PLAN_GROUP_CACHE:
type == OP_GET_PARAM ? freeGroupCacheGetOperatorParam(pParam) : freeGroupCacheNotifyOperatorParam(pParam);
break;
case QUERY_NODE_PHYSICAL_PLAN_MERGE_JOIN:
type == OP_GET_PARAM ? freeMergeJoinGetOperatorParam(pParam) : freeMergeJoinNotifyOperatorParam(pParam);
break;
case QUERY_NODE_PHYSICAL_PLAN_TABLE_SCAN:
type == OP_GET_PARAM ? freeTableScanGetOperatorParam(pParam) : freeTableScanNotifyOperatorParam(pParam);
break;
default:
qError("unsupported op %d param, type %d", pParam->opType, type);
break;
}
}
void freeResetOperatorParams(struct SOperatorInfo* pOperator, SOperatorParamType type, bool allFree) {
SOperatorParam** ppParam = NULL;
SOperatorParam*** pppDownstramParam = NULL;
switch (type) {
case OP_GET_PARAM:
ppParam = &pOperator->pOperatorGetParam;
pppDownstramParam = &pOperator->pDownstreamGetParams;
break;
case OP_NOTIFY_PARAM:
ppParam = &pOperator->pOperatorNotifyParam;
pppDownstramParam = &pOperator->pDownstreamNotifyParams;
break;
default:
return;
}
if (*ppParam) {
freeOperatorParam(*ppParam, type);
*ppParam = NULL;
}
if (*pppDownstramParam) {
for (int32_t i = 0; i < pOperator->numOfDownstream; ++i) {
if ((*pppDownstramParam)[i]) {
freeOperatorParam((*pppDownstramParam)[i], type);
(*pppDownstramParam)[i] = NULL;
}
}
if (allFree) {
taosMemoryFreeClear(*pppDownstramParam);
}
}
}
FORCE_INLINE SSDataBlock* getNextBlockFromDownstreamImpl(struct SOperatorInfo* pOperator, int32_t idx, bool clearParam) {
if (pOperator->pDownstreamGetParams && pOperator->pDownstreamGetParams[idx]) {
qDebug("DynOp: op %s start to get block from downstream %s", pOperator->name, pOperator->pDownstream[idx]->name);
SSDataBlock* pBlock = pOperator->pDownstream[idx]->fpSet.getNextExtFn(pOperator->pDownstream[idx], pOperator->pDownstreamGetParams[idx]);
if (clearParam) {
freeOperatorParam(pOperator->pDownstreamGetParams[idx], OP_GET_PARAM);
pOperator->pDownstreamGetParams[idx] = NULL;
}
return pBlock;
}
return pOperator->pDownstream[idx]->fpSet.getNextFn(pOperator->pDownstream[idx]);
}
bool compareVal(const char* v, const SStateKeys* pKey) {
if (IS_VAR_DATA_TYPE(pKey->type)) {
if (varDataLen(v) != varDataLen(pKey->pData)) {
return false;
} else {
return memcmp(varDataVal(v), varDataVal(pKey->pData), varDataLen(v)) == 0;
}
} else {
return memcmp(pKey->pData, v, pKey->bytes) == 0;
}
}
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