/* * Copyright (c) 2019 TAOS Data, Inc. * * 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 . */ #include "builtinsimpl.h" #include "cJSON.h" #include "function.h" #include "querynodes.h" #include "taggfunction.h" #include "tdatablock.h" #include "tpercentile.h" #define HISTOGRAM_MAX_BINS_NUM 1000 #define MAVG_MAX_POINTS_NUM 1000 #define SAMPLE_MAX_POINTS_NUM 1000 typedef struct SSumRes { union { int64_t isum; uint64_t usum; double dsum; }; } SSumRes; typedef struct SAvgRes { double result; SSumRes sum; int64_t count; } SAvgRes; typedef struct STuplePos { int32_t pageId; int32_t offset; } STuplePos; typedef struct STopBotResItem { SVariant v; uint64_t uid; // it is a table uid, used to extract tag data during building of the final result for the tag data STuplePos tuplePos; // tuple data of this chosen row } STopBotResItem; typedef struct STopBotRes { STopBotResItem* pItems; } STopBotRes; typedef struct SStddevRes { double result; int64_t count; union { double quadraticDSum; int64_t quadraticISum; }; union { double dsum; int64_t isum; }; } SStddevRes; typedef struct SLeastSQRInfo { double matrix[2][3]; double startVal; double stepVal; int64_t num; } SLeastSQRInfo; typedef struct SPercentileInfo { double result; tMemBucket* pMemBucket; int32_t stage; double minval; double maxval; int64_t numOfElems; } SPercentileInfo; typedef struct SDiffInfo { bool hasPrev; bool includeNull; bool ignoreNegative; // replace the ignore with case when bool firstOutput; union { int64_t i64; double d64; } prev; int64_t prevTs; } SDiffInfo; typedef struct SSpreadInfo { double result; bool hasResult; double min; double max; } SSpreadInfo; typedef struct SHistoFuncBin { double lower; double upper; union { int64_t count; double percentage; }; } SHistoFuncBin; typedef struct SHistoFuncInfo { int32_t numOfBins; int32_t totalCount; bool normalized; SHistoFuncBin bins[]; } SHistoFuncInfo; typedef enum { UNKNOWN_BIN = 0, USER_INPUT_BIN, LINEAR_BIN, LOG_BIN } EHistoBinType; typedef struct SStateInfo { union { int64_t count; int64_t durationStart; }; } SStateInfo; typedef enum { STATE_OPER_INVALID = 0, STATE_OPER_LT, STATE_OPER_GT, STATE_OPER_LE, STATE_OPER_GE, STATE_OPER_NE, STATE_OPER_EQ, } EStateOperType; typedef struct SMavgInfo { int32_t pos; double sum; int32_t numOfPoints; bool pointsMeet; double points[]; } SMavgInfo; typedef struct SSampleInfo { int32_t samples; int32_t totalPoints; int32_t numSampled; uint8_t colType; int16_t colBytes; char *data; int64_t *timestamp; } SSampleInfo; #define SET_VAL(_info, numOfElem, res) \ do { \ if ((numOfElem) <= 0) { \ break; \ } \ (_info)->numOfRes = (res); \ } while (0) #define GET_TS_LIST(x) ((TSKEY*)((x)->ptsList)) #define GET_TS_DATA(x, y) (GET_TS_LIST(x)[(y)]) #define DO_UPDATE_TAG_COLUMNS_WITHOUT_TS(ctx) \ do { \ for (int32_t _i = 0; _i < (ctx)->tagInfo.numOfTagCols; ++_i) { \ SqlFunctionCtx* __ctx = (ctx)->tagInfo.pTagCtxList[_i]; \ __ctx->fpSet.process(__ctx); \ } \ } while (0); #define UPDATE_DATA(ctx, left, right, num, sign, _ts) \ do { \ if (((left) < (right)) ^ (sign)) { \ (left) = (right); \ DO_UPDATE_SUBSID_RES(ctx, _ts); \ (num) += 1; \ } \ } while (0) #define LOOPCHECK_N(val, _col, ctx, _t, _nrow, _start, sign, num) \ do { \ _t* d = (_t*)((_col)->pData); \ for (int32_t i = (_start); i < (_nrow) + (_start); ++i) { \ if (((_col)->hasNull) && colDataIsNull_f((_col)->nullbitmap, i)) { \ continue; \ } \ TSKEY ts = (ctx)->ptsList != NULL ? GET_TS_DATA(ctx, i) : 0; \ UPDATE_DATA(ctx, val, d[i], num, sign, ts); \ } \ } while (0) bool functionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) { if (pResultInfo->initialized) { return false; } if (pCtx->pOutput != NULL) { memset(pCtx->pOutput, 0, (size_t)pCtx->resDataInfo.bytes); } initResultRowEntry(pResultInfo, pCtx->resDataInfo.interBufSize); return true; } int32_t functionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { int32_t slotId = pCtx->pExpr->base.resSchema.slotId; SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId); SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); pResInfo->isNullRes = (pResInfo->numOfRes == 0) ? 1 : 0; char* in = GET_ROWCELL_INTERBUF(pResInfo); colDataAppend(pCol, pBlock->info.rows, in, pResInfo->isNullRes); return pResInfo->numOfRes; } int32_t dummyProcess(SqlFunctionCtx* UNUSED_PARAM(pCtx)) { return 0; } int32_t functionFinalizeWithResultBuf(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, char* finalResult) { int32_t slotId = pCtx->pExpr->base.resSchema.slotId; SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId); SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); pResInfo->isNullRes = (pResInfo->numOfRes == 0) ? 1 : 0; cleanupResultRowEntry(pResInfo); char* in = finalResult; colDataAppend(pCol, pBlock->info.rows, in, pResInfo->isNullRes); return pResInfo->numOfRes; } EFuncDataRequired countDataRequired(SFunctionNode* pFunc, STimeWindow* pTimeWindow) { SNode* pParam = nodesListGetNode(pFunc->pParameterList, 0); if (QUERY_NODE_COLUMN == nodeType(pParam) && PRIMARYKEY_TIMESTAMP_COL_ID == ((SColumnNode*)pParam)->colId) { return FUNC_DATA_REQUIRED_NOT_LOAD; } return FUNC_DATA_REQUIRED_STATIS_LOAD; } bool getCountFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(int64_t); return true; } static FORCE_INLINE int32_t getNumofElem(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; /* * 1. column data missing (schema modified) causes pInputCol->hasNull == true. pInput->colDataAggIsSet == true; * 2. for general non-primary key columns, pInputCol->hasNull may be true or false, pInput->colDataAggIsSet == true; * 3. for primary key column, pInputCol->hasNull always be false, pInput->colDataAggIsSet == false; */ SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pInputCol = pInput->pData[0]; if (pInput->colDataAggIsSet && pInput->totalRows == pInput->numOfRows) { numOfElem = pInput->numOfRows - pInput->pColumnDataAgg[0]->numOfNull; ASSERT(numOfElem >= 0); } else { if (pInputCol->hasNull) { for (int32_t i = pInput->startRowIndex; i < pInput->startRowIndex + pInput->numOfRows; ++i) { if (colDataIsNull(pInputCol, pInput->totalRows, i, NULL)) { continue; } numOfElem += 1; } } else { // when counting on the primary time stamp column and no statistics data is presented, use the size value // directly. numOfElem = pInput->numOfRows; } } return numOfElem; } /* * count function does need the finalize, if data is missing, the default value, which is 0, is used * count function does not use the pCtx->interResBuf to keep the intermediate buffer */ int32_t countFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = getNumofElem(pCtx); SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); char* buf = GET_ROWCELL_INTERBUF(pResInfo); *((int64_t*)buf) += numOfElem; SET_VAL(pResInfo, numOfElem, 1); return TSDB_CODE_SUCCESS; } int32_t countInvertFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = getNumofElem(pCtx); SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); char* buf = GET_ROWCELL_INTERBUF(pResInfo); *((int64_t*)buf) -= numOfElem; SET_VAL(pResInfo, *((int64_t*)buf), 1); return TSDB_CODE_SUCCESS; } #define LIST_ADD_N(_res, _col, _start, _rows, _t, numOfElem) \ do { \ _t* d = (_t*)(_col->pData); \ for (int32_t i = (_start); i < (_rows) + (_start); ++i) { \ if (((_col)->hasNull) && colDataIsNull_f((_col)->nullbitmap, i)) { \ continue; \ }; \ (_res) += (d)[i]; \ (numOfElem)++; \ } \ } while (0) #define LIST_SUB_N(_res, _col, _start, _rows, _t, numOfElem) \ do { \ _t* d = (_t*)(_col->pData); \ for (int32_t i = (_start); i < (_rows) + (_start); ++i) { \ if (((_col)->hasNull) && colDataIsNull_f((_col)->nullbitmap, i)) { \ continue; \ }; \ (_res) -= (d)[i]; \ (numOfElem)++; \ } \ } while (0) int32_t sumFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; // Only the pre-computing information loaded and actual data does not loaded SInputColumnInfoData* pInput = &pCtx->input; SColumnDataAgg* pAgg = pInput->pColumnDataAgg[0]; int32_t type = pInput->pData[0]->info.type; SSumRes* pSumRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); if (pInput->colDataAggIsSet) { numOfElem = pInput->numOfRows - pAgg->numOfNull; ASSERT(numOfElem >= 0); if (IS_SIGNED_NUMERIC_TYPE(type)) { pSumRes->isum += pAgg->sum; } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { pSumRes->usum += pAgg->sum; } else if (IS_FLOAT_TYPE(type)) { pSumRes->dsum += GET_DOUBLE_VAL((const char*)&(pAgg->sum)); } } else { // computing based on the true data block SColumnInfoData* pCol = pInput->pData[0]; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; if (IS_SIGNED_NUMERIC_TYPE(type) || type == TSDB_DATA_TYPE_BOOL) { if (type == TSDB_DATA_TYPE_TINYINT || type == TSDB_DATA_TYPE_BOOL) { LIST_ADD_N(pSumRes->isum, pCol, start, numOfRows, int8_t, numOfElem); } else if (type == TSDB_DATA_TYPE_SMALLINT) { LIST_ADD_N(pSumRes->isum, pCol, start, numOfRows, int16_t, numOfElem); } else if (type == TSDB_DATA_TYPE_INT) { LIST_ADD_N(pSumRes->isum, pCol, start, numOfRows, int32_t, numOfElem); } else if (type == TSDB_DATA_TYPE_BIGINT) { LIST_ADD_N(pSumRes->isum, pCol, start, numOfRows, int64_t, numOfElem); } } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { if (type == TSDB_DATA_TYPE_UTINYINT) { LIST_ADD_N(pSumRes->usum, pCol, start, numOfRows, uint8_t, numOfElem); } else if (type == TSDB_DATA_TYPE_USMALLINT) { LIST_ADD_N(pSumRes->usum, pCol, start, numOfRows, uint16_t, numOfElem); } else if (type == TSDB_DATA_TYPE_UINT) { LIST_ADD_N(pSumRes->usum, pCol, start, numOfRows, uint32_t, numOfElem); } else if (type == TSDB_DATA_TYPE_UBIGINT) { LIST_ADD_N(pSumRes->usum, pCol, start, numOfRows, uint64_t, numOfElem); } } else if (type == TSDB_DATA_TYPE_DOUBLE) { LIST_ADD_N(pSumRes->dsum, pCol, start, numOfRows, double, numOfElem); } else if (type == TSDB_DATA_TYPE_FLOAT) { LIST_ADD_N(pSumRes->dsum, pCol, start, numOfRows, float, numOfElem); } } // data in the check operation are all null, not output SET_VAL(GET_RES_INFO(pCtx), numOfElem, 1); return TSDB_CODE_SUCCESS; } int32_t sumInvertFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; // Only the pre-computing information loaded and actual data does not loaded SInputColumnInfoData* pInput = &pCtx->input; SColumnDataAgg* pAgg = pInput->pColumnDataAgg[0]; int32_t type = pInput->pData[0]->info.type; SSumRes* pSumRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); if (pInput->colDataAggIsSet) { numOfElem = pInput->numOfRows - pAgg->numOfNull; ASSERT(numOfElem >= 0); if (IS_SIGNED_NUMERIC_TYPE(type)) { pSumRes->isum -= pAgg->sum; } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { pSumRes->usum -= pAgg->sum; } else if (IS_FLOAT_TYPE(type)) { pSumRes->dsum -= GET_DOUBLE_VAL((const char*)&(pAgg->sum)); } } else { // computing based on the true data block SColumnInfoData* pCol = pInput->pData[0]; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; if (IS_SIGNED_NUMERIC_TYPE(type) || type == TSDB_DATA_TYPE_BOOL) { if (type == TSDB_DATA_TYPE_TINYINT || type == TSDB_DATA_TYPE_BOOL) { LIST_SUB_N(pSumRes->isum, pCol, start, numOfRows, int8_t, numOfElem); } else if (type == TSDB_DATA_TYPE_SMALLINT) { LIST_SUB_N(pSumRes->isum, pCol, start, numOfRows, int16_t, numOfElem); } else if (type == TSDB_DATA_TYPE_INT) { LIST_SUB_N(pSumRes->isum, pCol, start, numOfRows, int32_t, numOfElem); } else if (type == TSDB_DATA_TYPE_BIGINT) { LIST_SUB_N(pSumRes->isum, pCol, start, numOfRows, int64_t, numOfElem); } } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { if (type == TSDB_DATA_TYPE_UTINYINT) { LIST_SUB_N(pSumRes->usum, pCol, start, numOfRows, uint8_t, numOfElem); } else if (type == TSDB_DATA_TYPE_USMALLINT) { LIST_SUB_N(pSumRes->usum, pCol, start, numOfRows, uint16_t, numOfElem); } else if (type == TSDB_DATA_TYPE_UINT) { LIST_SUB_N(pSumRes->usum, pCol, start, numOfRows, uint32_t, numOfElem); } else if (type == TSDB_DATA_TYPE_UBIGINT) { LIST_SUB_N(pSumRes->usum, pCol, start, numOfRows, uint64_t, numOfElem); } } else if (type == TSDB_DATA_TYPE_DOUBLE) { LIST_SUB_N(pSumRes->dsum, pCol, start, numOfRows, double, numOfElem); } else if (type == TSDB_DATA_TYPE_FLOAT) { LIST_SUB_N(pSumRes->dsum, pCol, start, numOfRows, float, numOfElem); } } // data in the check operation are all null, not output SET_VAL(GET_RES_INFO(pCtx), numOfElem, 1); return TSDB_CODE_SUCCESS; } bool getSumFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SSumRes); return true; } bool getAvgFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(double); return true; } bool avgFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } SAvgRes* pRes = GET_ROWCELL_INTERBUF(pResultInfo); memset(pRes, 0, sizeof(SAvgRes)); return true; } int32_t avgFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; // Only the pre-computing information loaded and actual data does not loaded SInputColumnInfoData* pInput = &pCtx->input; int32_t type = pInput->pData[0]->info.type; SAvgRes* pAvgRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); // computing based on the true data block SColumnInfoData* pCol = pInput->pData[0]; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; switch (type) { case TSDB_DATA_TYPE_TINYINT: { int8_t* plist = (int8_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pAvgRes->count += 1; pAvgRes->sum.isum += plist[i]; } break; } case TSDB_DATA_TYPE_SMALLINT: { int16_t* plist = (int16_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pAvgRes->count += 1; pAvgRes->sum.isum += plist[i]; } break; } case TSDB_DATA_TYPE_INT: { int32_t* plist = (int32_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pAvgRes->count += 1; pAvgRes->sum.isum += plist[i]; } break; } case TSDB_DATA_TYPE_BIGINT: { int64_t* plist = (int64_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pAvgRes->count += 1; pAvgRes->sum.isum += plist[i]; } break; } case TSDB_DATA_TYPE_FLOAT: { float* plist = (float*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pAvgRes->count += 1; pAvgRes->sum.dsum += plist[i]; } break; } case TSDB_DATA_TYPE_DOUBLE: { double* plist = (double*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pAvgRes->count += 1; pAvgRes->sum.dsum += plist[i]; } break; } default: break; } // data in the check operation are all null, not output SET_VAL(GET_RES_INFO(pCtx), numOfElem, 1); return TSDB_CODE_SUCCESS; } #define LIST_AVG_N(sumT, T) \ do { \ T* plist = (T*)pCol->pData; \ for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { \ if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { \ continue; \ } \ \ numOfElem += 1; \ pAvgRes->count -= 1; \ sumT -= plist[i]; \ } \ } while (0) int32_t avgInvertFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; // Only the pre-computing information loaded and actual data does not loaded SInputColumnInfoData* pInput = &pCtx->input; int32_t type = pInput->pData[0]->info.type; SAvgRes* pAvgRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); // computing based on the true data block SColumnInfoData* pCol = pInput->pData[0]; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; switch (type) { case TSDB_DATA_TYPE_TINYINT: { LIST_AVG_N(pAvgRes->sum.isum, int8_t); break; } case TSDB_DATA_TYPE_SMALLINT: { LIST_AVG_N(pAvgRes->sum.isum, int16_t); break; } case TSDB_DATA_TYPE_INT: { LIST_AVG_N(pAvgRes->sum.isum, int32_t); break; } case TSDB_DATA_TYPE_BIGINT: { LIST_AVG_N(pAvgRes->sum.isum, int64_t); break; } case TSDB_DATA_TYPE_FLOAT: { LIST_AVG_N(pAvgRes->sum.dsum, float); break; } case TSDB_DATA_TYPE_DOUBLE: { LIST_AVG_N(pAvgRes->sum.dsum, double); break; } default: break; } // data in the check operation are all null, not output SET_VAL(GET_RES_INFO(pCtx), numOfElem, 1); return TSDB_CODE_SUCCESS; } int32_t avgFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SInputColumnInfoData* pInput = &pCtx->input; int32_t type = pInput->pData[0]->info.type; SAvgRes* pAvgRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); if (IS_INTEGER_TYPE(type)) { pAvgRes->result = pAvgRes->sum.isum / ((double)pAvgRes->count); } else { pAvgRes->result = pAvgRes->sum.dsum / ((double)pAvgRes->count); } return functionFinalize(pCtx, pBlock); } EFuncDataRequired statisDataRequired(SFunctionNode* pFunc, STimeWindow* pTimeWindow) { return FUNC_DATA_REQUIRED_STATIS_LOAD; } typedef struct SMinmaxResInfo { bool assign; // assign the first value or not int64_t v; STuplePos tuplePos; } SMinmaxResInfo; bool minmaxFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; // not initialized since it has been initialized } SMinmaxResInfo* buf = GET_ROWCELL_INTERBUF(pResultInfo); buf->assign = false; buf->tuplePos.pageId = -1; return true; } bool getMinmaxFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SMinmaxResInfo); return true; } #define GET_TS_LIST(x) ((TSKEY*)((x)->ptsList)) #define GET_TS_DATA(x, y) (GET_TS_LIST(x)[(y)]) #define DO_UPDATE_TAG_COLUMNS_WITHOUT_TS(ctx) \ do { \ for (int32_t _i = 0; _i < (ctx)->tagInfo.numOfTagCols; ++_i) { \ SqlFunctionCtx* __ctx = (ctx)->tagInfo.pTagCtxList[_i]; \ __ctx->fpSet.process(__ctx); \ } \ } while (0); #define DO_UPDATE_SUBSID_RES(ctx, ts) \ do { \ for (int32_t _i = 0; _i < (ctx)->subsidiaries.num; ++_i) { \ SqlFunctionCtx* __ctx = (ctx)->subsidiaries.pCtx[_i]; \ if (__ctx->functionId == FUNCTION_TS_DUMMY) { \ __ctx->tag.i = (ts); \ __ctx->tag.nType = TSDB_DATA_TYPE_BIGINT; \ } \ __ctx->fpSet.process(__ctx); \ } \ } while (0) #define UPDATE_DATA(ctx, left, right, num, sign, _ts) \ do { \ if (((left) < (right)) ^ (sign)) { \ (left) = (right); \ DO_UPDATE_SUBSID_RES(ctx, _ts); \ (num) += 1; \ } \ } while (0) #define LOOPCHECK_N(val, _col, ctx, _t, _nrow, _start, sign, num) \ do { \ _t* d = (_t*)((_col)->pData); \ for (int32_t i = (_start); i < (_nrow) + (_start); ++i) { \ if (((_col)->hasNull) && colDataIsNull_f((_col)->nullbitmap, i)) { \ continue; \ } \ TSKEY ts = (ctx)->ptsList != NULL ? GET_TS_DATA(ctx, i) : 0; \ UPDATE_DATA(ctx, val, d[i], num, sign, ts); \ } \ } while (0) static void saveTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STuplePos* pPos); static void copyTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STuplePos* pPos); int32_t doMinMaxHelper(SqlFunctionCtx* pCtx, int32_t isMinFunc) { int32_t numOfElems = 0; SInputColumnInfoData* pInput = &pCtx->input; SColumnDataAgg* pAgg = pInput->pColumnDataAgg[0]; SColumnInfoData* pCol = pInput->pData[0]; int32_t type = pCol->info.type; SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SMinmaxResInfo *pBuf = GET_ROWCELL_INTERBUF(pResInfo); // data in current data block are qualified to the query if (pInput->colDataAggIsSet) { numOfElems = pInput->numOfRows - pAgg->numOfNull; ASSERT(pInput->numOfRows == pInput->totalRows && numOfElems >= 0); if (numOfElems == 0) { return numOfElems; } void* tval = NULL; int16_t index = 0; if (isMinFunc) { tval = &pInput->pColumnDataAgg[0]->min; index = pInput->pColumnDataAgg[0]->minIndex; } else { tval = &pInput->pColumnDataAgg[0]->max; index = pInput->pColumnDataAgg[0]->maxIndex; } // the index is the original position, not the relative position TSKEY key = (pCtx->ptsList != NULL) ? pCtx->ptsList[index] : TSKEY_INITIAL_VAL; if (!pBuf->assign) { pBuf->v = *(int64_t*)tval; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, index, pCtx->pSrcBlock, &pBuf->tuplePos); } } else { if (IS_SIGNED_NUMERIC_TYPE(type)) { int64_t prev = 0; GET_TYPED_DATA(prev, int64_t, type, &pBuf->v); int64_t val = GET_INT64_VAL(tval); if ((prev < val) ^ isMinFunc) { pBuf->v = val; // for (int32_t i = 0; i < (pCtx)->subsidiaries.num; ++i) { // SqlFunctionCtx* __ctx = pCtx->subsidiaries.pCtx[i]; // if (__ctx->functionId == FUNCTION_TS_DUMMY) { // TODO refactor // __ctx->tag.i = key; // __ctx->tag.nType = TSDB_DATA_TYPE_BIGINT; // } // // __ctx->fpSet.process(__ctx); // } if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, index, pCtx->pSrcBlock, &pBuf->tuplePos); } } } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { uint64_t prev = 0; GET_TYPED_DATA(prev, uint64_t, type, &pBuf->v); uint64_t val = GET_UINT64_VAL(tval); if ((prev < val) ^ isMinFunc) { pBuf->v = val; // for (int32_t i = 0; i < (pCtx)->subsidiaries.num; ++i) { // SqlFunctionCtx* __ctx = pCtx->subsidiaries.pCtx[i]; // if (__ctx->functionId == FUNCTION_TS_DUMMY) { // TODO refactor // __ctx->tag.i = key; // __ctx->tag.nType = TSDB_DATA_TYPE_BIGINT; // } // // __ctx->fpSet.process(__ctx); // } if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, index, pCtx->pSrcBlock, &pBuf->tuplePos); } } } else if (type == TSDB_DATA_TYPE_DOUBLE) { double prev = 0; GET_TYPED_DATA(prev, int64_t, type, &pBuf->v); double val = GET_DOUBLE_VAL(tval); if ((prev < val) ^ isMinFunc) { pBuf->v = val; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, index, pCtx->pSrcBlock, &pBuf->tuplePos); } } } else if (type == TSDB_DATA_TYPE_FLOAT) { double prev = 0; GET_TYPED_DATA(prev, int64_t, type, &pBuf->v); double val = GET_DOUBLE_VAL(tval); if ((prev < val) ^ isMinFunc) { pBuf->v = val; } if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, index, pCtx->pSrcBlock, &pBuf->tuplePos); } } } pBuf->assign = true; return numOfElems; } int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; if (IS_SIGNED_NUMERIC_TYPE(type) || type == TSDB_DATA_TYPE_BOOL) { if (type == TSDB_DATA_TYPE_TINYINT || type == TSDB_DATA_TYPE_BOOL) { int8_t* pData = (int8_t*)pCol->pData; int8_t* val = (int8_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } else if (type == TSDB_DATA_TYPE_SMALLINT) { int16_t* pData = (int16_t*)pCol->pData; int16_t* val = (int16_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } else if (type == TSDB_DATA_TYPE_INT) { int32_t* pData = (int32_t*)pCol->pData; int32_t* val = (int32_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } else if (type == TSDB_DATA_TYPE_BIGINT) { int64_t* pData = (int64_t*)pCol->pData; int64_t* val = (int64_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { if (type == TSDB_DATA_TYPE_UTINYINT) { uint8_t* pData = (uint8_t*)pCol->pData; uint8_t* val = (uint8_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } else if (type == TSDB_DATA_TYPE_USMALLINT) { uint16_t* pData = (uint16_t*)pCol->pData; uint16_t* val = (uint16_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } else if (type == TSDB_DATA_TYPE_UINT) { uint32_t* pData = (uint32_t*)pCol->pData; uint32_t* val = (uint32_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } else if (type == TSDB_DATA_TYPE_UBIGINT) { uint64_t* pData = (uint64_t*)pCol->pData; uint64_t* val = (uint64_t*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } } else if (type == TSDB_DATA_TYPE_DOUBLE) { double* pData = (double*)pCol->pData; double* val = (double*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } else if (type == TSDB_DATA_TYPE_FLOAT) { float* pData = (float*)pCol->pData; double* val = (double*)&pBuf->v; for (int32_t i = start; i < start + numOfRows; ++i) { if ((pCol->hasNull) && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } if (!pBuf->assign) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { saveTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } pBuf->assign = true; } else { // ignore the equivalent data value if ((*val) == pData[i]) { continue; } if ((*val < pData[i]) ^ isMinFunc) { *val = pData[i]; if (pCtx->subsidiaries.num > 0) { copyTupleData(pCtx, i, pCtx->pSrcBlock, &pBuf->tuplePos); } } } numOfElems += 1; } } return numOfElems; } int32_t minFunction(SqlFunctionCtx* pCtx) { int32_t numOfElems = doMinMaxHelper(pCtx, 1); SET_VAL(GET_RES_INFO(pCtx), numOfElems, 1); return TSDB_CODE_SUCCESS; } int32_t maxFunction(SqlFunctionCtx* pCtx) { int32_t numOfElems = doMinMaxHelper(pCtx, 0); SET_VAL(GET_RES_INFO(pCtx), numOfElems, 1); return TSDB_CODE_SUCCESS; } static void setSelectivityValue(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, const STuplePos *pTuplePos, int32_t rowIndex); int32_t minmaxFunctionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SResultRowEntryInfo* pEntryInfo = GET_RES_INFO(pCtx); SMinmaxResInfo* pRes = GET_ROWCELL_INTERBUF(pEntryInfo); int32_t type = pCtx->input.pData[0]->info.type; int32_t slotId = pCtx->pExpr->base.resSchema.slotId; SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId); // todo assign the tag value int32_t currentRow = pBlock->info.rows; if (pCol->info.type == TSDB_DATA_TYPE_FLOAT) { float v = *(double*) &pRes->v; colDataAppend(pCol, currentRow, (const char*)&v, false); } else { colDataAppend(pCol, currentRow, (const char*)&pRes->v, false); } setSelectivityValue(pCtx, pBlock, &pRes->tuplePos, currentRow); return pEntryInfo->numOfRes; } void setSelectivityValue(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, const STuplePos *pTuplePos, int32_t rowIndex) { int32_t pageId = pTuplePos->pageId; int32_t offset = pTuplePos->offset; if (pTuplePos->pageId != -1) { SFilePage* pPage = getBufPage(pCtx->pBuf, pageId); bool* nullList = (bool*)((char*)pPage + offset); char* pStart = (char*)(nullList + pCtx->pSrcBlock->info.numOfCols * sizeof(bool)); // todo set the offset value to optimize the performance. for (int32_t j = 0; j < pCtx->subsidiaries.num; ++j) { SqlFunctionCtx* pc = pCtx->subsidiaries.pCtx[j]; SFunctParam* pFuncParam = &pc->pExpr->base.pParam[0]; int32_t srcSlotId = pFuncParam->pCol->slotId; int32_t dstSlotId = pc->pExpr->base.resSchema.slotId; int32_t ps = 0; for (int32_t k = 0; k < srcSlotId; ++k) { SColumnInfoData* pSrcCol = taosArrayGet(pCtx->pSrcBlock->pDataBlock, k); ps += pSrcCol->info.bytes; } SColumnInfoData* pDstCol = taosArrayGet(pBlock->pDataBlock, dstSlotId); if (nullList[srcSlotId]) { colDataAppendNULL(pDstCol, rowIndex); } else { colDataAppend(pDstCol, rowIndex, (pStart + ps), false); } } } } bool getStddevFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SStddevRes); return true; } bool stddevFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } SStddevRes* pRes = GET_ROWCELL_INTERBUF(pResultInfo); memset(pRes, 0, sizeof(SStddevRes)); return true; } int32_t stddevFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; // Only the pre-computing information loaded and actual data does not loaded SInputColumnInfoData* pInput = &pCtx->input; int32_t type = pInput->pData[0]->info.type; SStddevRes* pStddevRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); // computing based on the true data block SColumnInfoData* pCol = pInput->pData[0]; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; switch (type) { case TSDB_DATA_TYPE_TINYINT: { int8_t* plist = (int8_t*)pCol->pData; for (int32_t i = start; i < numOfRows + start; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pStddevRes->count += 1; pStddevRes->isum += plist[i]; pStddevRes->quadraticISum += plist[i] * plist[i]; } break; } case TSDB_DATA_TYPE_SMALLINT: { int16_t* plist = (int16_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pStddevRes->count += 1; pStddevRes->isum += plist[i]; pStddevRes->quadraticISum += plist[i] * plist[i]; } break; } case TSDB_DATA_TYPE_INT: { int32_t* plist = (int32_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pStddevRes->count += 1; pStddevRes->isum += plist[i]; pStddevRes->quadraticISum += plist[i] * plist[i]; } break; } case TSDB_DATA_TYPE_BIGINT: { int64_t* plist = (int64_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pStddevRes->count += 1; pStddevRes->isum += plist[i]; pStddevRes->quadraticISum += plist[i] * plist[i]; } break; } case TSDB_DATA_TYPE_FLOAT: { float* plist = (float*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pStddevRes->count += 1; pStddevRes->dsum += plist[i]; pStddevRes->quadraticDSum += plist[i] * plist[i]; } break; } case TSDB_DATA_TYPE_DOUBLE: { double* plist = (double*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem += 1; pStddevRes->count += 1; pStddevRes->dsum += plist[i]; pStddevRes->quadraticDSum += plist[i] * plist[i]; } break; } default: break; } // data in the check operation are all null, not output SET_VAL(GET_RES_INFO(pCtx), numOfElem, 1); return TSDB_CODE_SUCCESS; } #define LIST_STDDEV_SUB_N(sumT, T) \ do { \ T* plist = (T*)pCol->pData; \ for (int32_t i = start; i < numOfRows + start; ++i) { \ if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { \ continue; \ } \ numOfElem += 1; \ pStddevRes->count -= 1; \ sumT -= plist[i]; \ pStddevRes->quadraticISum -= plist[i] * plist[i]; \ } \ } while (0) int32_t stddevInvertFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; // Only the pre-computing information loaded and actual data does not loaded SInputColumnInfoData* pInput = &pCtx->input; int32_t type = pInput->pData[0]->info.type; SStddevRes* pStddevRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); // computing based on the true data block SColumnInfoData* pCol = pInput->pData[0]; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; switch (type) { case TSDB_DATA_TYPE_TINYINT: { LIST_STDDEV_SUB_N(pStddevRes->isum, int8_t); break; } case TSDB_DATA_TYPE_SMALLINT: { LIST_STDDEV_SUB_N(pStddevRes->isum, int16_t); break; } case TSDB_DATA_TYPE_INT: { LIST_STDDEV_SUB_N(pStddevRes->isum, int32_t); break; } case TSDB_DATA_TYPE_BIGINT: { LIST_STDDEV_SUB_N(pStddevRes->isum, int64_t); break; } case TSDB_DATA_TYPE_FLOAT: { LIST_STDDEV_SUB_N(pStddevRes->dsum, float); break; } case TSDB_DATA_TYPE_DOUBLE: { LIST_STDDEV_SUB_N(pStddevRes->dsum, double); break; } default: break; } // data in the check operation are all null, not output SET_VAL(GET_RES_INFO(pCtx), numOfElem, 1); return TSDB_CODE_SUCCESS; } int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SInputColumnInfoData* pInput = &pCtx->input; int32_t type = pInput->pData[0]->info.type; SStddevRes* pStddevRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); double avg; if (IS_INTEGER_TYPE(type)) { avg = pStddevRes->isum / ((double)pStddevRes->count); pStddevRes->result = sqrt(pStddevRes->quadraticISum / ((double)pStddevRes->count) - avg * avg); } else { avg = pStddevRes->dsum / ((double)pStddevRes->count); pStddevRes->result = sqrt(pStddevRes->quadraticDSum / ((double)pStddevRes->count) - avg * avg); } return functionFinalize(pCtx, pBlock); } bool getLeastSQRFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SLeastSQRInfo); return true; } bool leastSQRFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } SLeastSQRInfo* pInfo = GET_ROWCELL_INTERBUF(pResultInfo); pInfo->startVal = IS_FLOAT_TYPE(pCtx->param[1].param.nType) ? pCtx->param[1].param.d : (double)pCtx->param[1].param.i; pInfo->stepVal = IS_FLOAT_TYPE(pCtx->param[1].param.nType) ? pCtx->param[2].param.d : (double)pCtx->param[1].param.i; return true; } #define LEASTSQR_CAL(p, x, y, index, step) \ do { \ (p)[0][0] += (double)(x) * (x); \ (p)[0][1] += (double)(x); \ (p)[0][2] += (double)(x) * (y)[index]; \ (p)[1][2] += (y)[index]; \ (x) += step; \ } while (0) int32_t leastSQRFunction(SqlFunctionCtx* pCtx) { int32_t numOfElem = 0; SInputColumnInfoData* pInput = &pCtx->input; int32_t type = pInput->pData[0]->info.type; SLeastSQRInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); SColumnInfoData* pCol = pInput->pData[0]; double(*param)[3] = pInfo->matrix; double x = pInfo->startVal; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; switch (type) { case TSDB_DATA_TYPE_TINYINT: { int8_t* plist = (int8_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem++; LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal); break; } } case TSDB_DATA_TYPE_SMALLINT: { int16_t* plist = (int16_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem++; LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal); } break; } case TSDB_DATA_TYPE_INT: { int32_t* plist = (int32_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem++; LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal); } break; } case TSDB_DATA_TYPE_BIGINT: { int64_t* plist = (int64_t*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem++; LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal); } break; } case TSDB_DATA_TYPE_FLOAT: { float* plist = (float*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem++; LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal); } break; } case TSDB_DATA_TYPE_DOUBLE: { double* plist = (double*)pCol->pData; for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElem++; LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal); } break; } default: break; } pInfo->startVal = x; pInfo->num += numOfElem; SET_VAL(GET_RES_INFO(pCtx), numOfElem, 1); return TSDB_CODE_SUCCESS; } int32_t leastSQRFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SLeastSQRInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); int32_t slotId = pCtx->pExpr->base.resSchema.slotId; SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId); int32_t currentRow = pBlock->info.rows; if (0 == pInfo->num) { return 0; } double(*param)[3] = pInfo->matrix; param[1][1] = (double)pInfo->num; param[1][0] = param[0][1]; param[0][0] -= param[1][0] * (param[0][1] / param[1][1]); param[0][2] -= param[1][2] * (param[0][1] / param[1][1]); param[0][1] = 0; param[1][2] -= param[0][2] * (param[1][0] / param[0][0]); param[1][0] = 0; param[0][2] /= param[0][0]; param[1][2] /= param[1][1]; char buf[64] = {0}; size_t len = snprintf(varDataVal(buf), sizeof(buf) - VARSTR_HEADER_SIZE, "{slop:%.6lf, intercept:%.6lf}", param[0][2], param[1][2]); varDataSetLen(buf, len); colDataAppend(pCol, currentRow, buf, false); return pResInfo->numOfRes; } int32_t leastSQRInvertFunction(SqlFunctionCtx* pCtx) { //TODO return TSDB_CODE_SUCCESS; } bool getPercentileFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SPercentileInfo); return true; } bool percentileFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } // in the first round, get the min-max value of all involved data SPercentileInfo* pInfo = GET_ROWCELL_INTERBUF(pResultInfo); SET_DOUBLE_VAL(&pInfo->minval, DBL_MAX); SET_DOUBLE_VAL(&pInfo->maxval, -DBL_MAX); pInfo->numOfElems = 0; return true; } int32_t percentileFunction(SqlFunctionCtx* pCtx) { int32_t notNullElems = 0; SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SInputColumnInfoData* pInput = &pCtx->input; SColumnDataAgg* pAgg = pInput->pColumnDataAgg[0]; SColumnInfoData* pCol = pInput->pData[0]; int32_t type = pCol->info.type; SPercentileInfo* pInfo = GET_ROWCELL_INTERBUF(pResInfo); if (pCtx->scanFlag == REPEAT_SCAN && pInfo->stage == 0) { pInfo->stage += 1; // all data are null, set it completed if (pInfo->numOfElems == 0) { pResInfo->complete = true; return 0; } else { pInfo->pMemBucket = tMemBucketCreate(pCol->info.bytes, type, pInfo->minval, pInfo->maxval); } } // the first stage, only acquire the min/max value if (pInfo->stage == 0) { if (pCtx->input.colDataAggIsSet) { double tmin = 0.0, tmax = 0.0; if (IS_SIGNED_NUMERIC_TYPE(type)) { tmin = (double)GET_INT64_VAL(&pAgg->min); tmax = (double)GET_INT64_VAL(&pAgg->max); } else if (IS_FLOAT_TYPE(type)) { tmin = GET_DOUBLE_VAL(&pAgg->min); tmax = GET_DOUBLE_VAL(&pAgg->max); } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { tmin = (double)GET_UINT64_VAL(&pAgg->min); tmax = (double)GET_UINT64_VAL(&pAgg->max); } if (GET_DOUBLE_VAL(&pInfo->minval) > tmin) { SET_DOUBLE_VAL(&pInfo->minval, tmin); } if (GET_DOUBLE_VAL(&pInfo->maxval) < tmax) { SET_DOUBLE_VAL(&pInfo->maxval, tmax); } pInfo->numOfElems += (pInput->numOfRows - pAgg->numOfNull); } else { // check the valid data one by one int32_t start = pInput->startRowIndex; for (int32_t i = start; i < pInput->numOfRows + start; ++i) { if (colDataIsNull_f(pCol->nullbitmap, i)) { continue; } char* data = colDataGetData(pCol, i); double v = 0; GET_TYPED_DATA(v, double, pCtx->inputType, data); if (v < GET_DOUBLE_VAL(&pInfo->minval)) { SET_DOUBLE_VAL(&pInfo->minval, v); } if (v > GET_DOUBLE_VAL(&pInfo->maxval)) { SET_DOUBLE_VAL(&pInfo->maxval, v); } pInfo->numOfElems += 1; } } } else { // the second stage, calculate the true percentile value int32_t start = pInput->startRowIndex; for (int32_t i = start; i < pInput->numOfRows + start; ++i) { if (colDataIsNull_f(pCol->nullbitmap, i)) { continue; } char* data = colDataGetData(pCol, i); notNullElems += 1; tMemBucketPut(pInfo->pMemBucket, data, 1); } SET_VAL(pResInfo, notNullElems, 1); } return TSDB_CODE_SUCCESS; } int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SVariant* pVal = &pCtx->param[1].param; double v = (pVal->nType == TSDB_DATA_TYPE_BIGINT) ? pVal->i : pVal->d; SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SPercentileInfo* ppInfo = (SPercentileInfo*)GET_ROWCELL_INTERBUF(pResInfo); tMemBucket* pMemBucket = ppInfo->pMemBucket; if (pMemBucket != NULL && pMemBucket->total > 0) { // check for null SET_DOUBLE_VAL(&ppInfo->result, getPercentile(pMemBucket, v)); } tMemBucketDestroy(pMemBucket); return functionFinalize(pCtx, pBlock); } bool getFirstLastFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) { SColumnNode* pNode = nodesListGetNode(pFunc->pParameterList, 0); pEnv->calcMemSize = pNode->node.resType.bytes + sizeof(int64_t); return true; } bool getSelectivityFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) { SColumnNode* pNode = nodesListGetNode(pFunc->pParameterList, 0); pEnv->calcMemSize = pNode->node.resType.bytes; return true; } static FORCE_INLINE TSKEY getRowPTs(SColumnInfoData* pTsColInfo, int32_t rowIndex) { if (pTsColInfo == NULL) { return 0; } return *(TSKEY*)colDataGetData(pTsColInfo, rowIndex); } // This ordinary first function does not care if current scan is ascending order or descending order scan // the OPTIMIZED version of first function will only handle the ascending order scan int32_t firstFunction(SqlFunctionCtx* pCtx) { int32_t numOfElems = 0; SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); char* buf = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pInputCol = pInput->pData[0]; int32_t bytes = pInputCol->info.bytes; // All null data column, return directly. if (pInput->colDataAggIsSet && (pInput->pColumnDataAgg[0]->numOfNull == pInput->totalRows)) { ASSERT(pInputCol->hasNull == true); return 0; } SColumnDataAgg* pColAgg = (pInput->colDataAggIsSet) ? pInput->pColumnDataAgg[0] : NULL; TSKEY startKey = getRowPTs(pInput->pPTS, 0); TSKEY endKey = getRowPTs(pInput->pPTS, pInput->totalRows - 1); int32_t blockDataOrder = (startKey <= endKey) ? TSDB_ORDER_ASC : TSDB_ORDER_DESC; if (blockDataOrder == TSDB_ORDER_ASC) { // filter according to current result firstly if (pResInfo->numOfRes > 0) { TSKEY ts = *(TSKEY*)(buf + bytes); if (ts < startKey) { return TSDB_CODE_SUCCESS; } } for (int32_t i = pInput->startRowIndex; i < pInput->startRowIndex + pInput->numOfRows; ++i) { if (pInputCol->hasNull && colDataIsNull(pInputCol, pInput->totalRows, i, pColAgg)) { continue; } numOfElems++; char* data = colDataGetData(pInputCol, i); TSKEY cts = getRowPTs(pInput->pPTS, i); if (pResInfo->numOfRes == 0 || *(TSKEY*)(buf + bytes) > cts) { memcpy(buf, data, bytes); *(TSKEY*)(buf + bytes) = cts; // DO_UPDATE_TAG_COLUMNS(pCtx, ts); pResInfo->numOfRes = 1; break; } } } else { // in case of descending order time stamp serial, which usually happens as the results of the nest query, // all data needs to be check. if (pResInfo->numOfRes > 0) { TSKEY ts = *(TSKEY*)(buf + bytes); if (ts < endKey) { return TSDB_CODE_SUCCESS; } } for (int32_t i = pInput->numOfRows + pInput->startRowIndex - 1; i >= pInput->startRowIndex; --i) { if (pInputCol->hasNull && colDataIsNull(pInputCol, pInput->totalRows, i, pColAgg)) { continue; } numOfElems++; char* data = colDataGetData(pInputCol, i); TSKEY cts = getRowPTs(pInput->pPTS, i); if (pResInfo->numOfRes == 0 || *(TSKEY*)(buf + bytes) > cts) { memcpy(buf, data, bytes); *(TSKEY*)(buf + bytes) = cts; // DO_UPDATE_TAG_COLUMNS(pCtx, ts); pResInfo->numOfRes = 1; break; } } } SET_VAL(pResInfo, numOfElems, 1); return TSDB_CODE_SUCCESS; } int32_t lastFunction(SqlFunctionCtx* pCtx) { int32_t numOfElems = 0; SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); char* buf = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pInputCol = pInput->pData[0]; int32_t bytes = pInputCol->info.bytes; // All null data column, return directly. if (pInput->colDataAggIsSet && (pInput->pColumnDataAgg[0]->numOfNull == pInput->totalRows)) { ASSERT(pInputCol->hasNull == true); return 0; } SColumnDataAgg* pColAgg = (pInput->colDataAggIsSet) ? pInput->pColumnDataAgg[0] : NULL; TSKEY startKey = getRowPTs(pInput->pPTS, 0); TSKEY endKey = getRowPTs(pInput->pPTS, pInput->totalRows - 1); int32_t blockDataOrder = (startKey <= endKey) ? TSDB_ORDER_ASC : TSDB_ORDER_DESC; if (blockDataOrder == TSDB_ORDER_ASC) { for (int32_t i = pInput->numOfRows + pInput->startRowIndex - 1; i >= pInput->startRowIndex; --i) { if (pInputCol->hasNull && colDataIsNull(pInputCol, pInput->totalRows, i, pColAgg)) { continue; } numOfElems++; char* data = colDataGetData(pInputCol, i); TSKEY cts = getRowPTs(pInput->pPTS, i); if (pResInfo->numOfRes == 0 || *(TSKEY*)(buf + bytes) < cts) { memcpy(buf, data, bytes); *(TSKEY*)(buf + bytes) = cts; // DO_UPDATE_TAG_COLUMNS(pCtx, ts); pResInfo->numOfRes = 1; } break; } } else { // descending order for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; ++i) { if (pInputCol->hasNull && colDataIsNull(pInputCol, pInput->totalRows, i, pColAgg)) { continue; } numOfElems++; char* data = colDataGetData(pInputCol, i); TSKEY cts = getRowPTs(pInput->pPTS, i); if (pResInfo->numOfRes == 0 || *(TSKEY*)(buf + bytes) < cts) { memcpy(buf, data, bytes); *(TSKEY*)(buf + bytes) = cts; pResInfo->numOfRes = 1; // DO_UPDATE_TAG_COLUMNS(pCtx, ts); } break; } } SET_VAL(pResInfo, numOfElems, 1); return TSDB_CODE_SUCCESS; } bool getDiffFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SDiffInfo); return true; } bool diffFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResInfo) { if (!functionSetup(pCtx, pResInfo)) { return false; } SDiffInfo* pDiffInfo = GET_ROWCELL_INTERBUF(pResInfo); pDiffInfo->hasPrev = false; pDiffInfo->prev.i64 = 0; pDiffInfo->ignoreNegative = pCtx->param[1].param.i; // TODO set correct param pDiffInfo->includeNull = false; pDiffInfo->firstOutput = false; return true; } static void doSetPrevVal(SDiffInfo* pDiffInfo, int32_t type, const char* pv) { switch(type) { case TSDB_DATA_TYPE_BOOL: case TSDB_DATA_TYPE_TINYINT: pDiffInfo->prev.i64 = *(int8_t*) pv; break; case TSDB_DATA_TYPE_INT: pDiffInfo->prev.i64 = *(int32_t*) pv; break; case TSDB_DATA_TYPE_SMALLINT: pDiffInfo->prev.i64 = *(int16_t*) pv; break; case TSDB_DATA_TYPE_BIGINT: pDiffInfo->prev.i64 = *(int64_t*) pv; break; case TSDB_DATA_TYPE_FLOAT: pDiffInfo->prev.d64 = *(float *) pv; break; case TSDB_DATA_TYPE_DOUBLE: pDiffInfo->prev.d64 = *(double*) pv; break; default: ASSERT(0); } } static void doHandleDiff(SDiffInfo* pDiffInfo, int32_t type, const char* pv, SColumnInfoData* pOutput, int32_t pos, int32_t order) { int32_t factor = (order == TSDB_ORDER_ASC)? 1:-1; switch (type) { case TSDB_DATA_TYPE_INT: { int32_t v = *(int32_t*)pv; int32_t delta = factor*(v - pDiffInfo->prev.i64); // direct previous may be null if (delta < 0 && pDiffInfo->ignoreNegative) { colDataSetNull_f(pOutput->nullbitmap, pos); } else { colDataAppendInt32(pOutput, pos, &delta); } pDiffInfo->prev.i64 = v; break; } case TSDB_DATA_TYPE_BOOL: case TSDB_DATA_TYPE_TINYINT: { int8_t v = *(int8_t*)pv; int8_t delta = factor*(v - pDiffInfo->prev.i64); // direct previous may be null if (delta < 0 && pDiffInfo->ignoreNegative) { colDataSetNull_f(pOutput->nullbitmap, pos); } else { colDataAppendInt8(pOutput, pos, &delta); } pDiffInfo->prev.i64 = v; break; } case TSDB_DATA_TYPE_SMALLINT: { int16_t v = *(int16_t*)pv; int16_t delta = factor*(v - pDiffInfo->prev.i64); // direct previous may be null if (delta < 0 && pDiffInfo->ignoreNegative) { colDataSetNull_f(pOutput->nullbitmap, pos); } else { colDataAppendInt16(pOutput, pos, &delta); } pDiffInfo->prev.i64 = v; break; } case TSDB_DATA_TYPE_BIGINT: { int64_t v = *(int64_t*)pv; int64_t delta = factor*(v - pDiffInfo->prev.i64); // direct previous may be null if (delta < 0 && pDiffInfo->ignoreNegative) { colDataSetNull_f(pOutput->nullbitmap, pos); } else { colDataAppendInt64(pOutput, pos, &delta); } pDiffInfo->prev.i64 = v; break; } case TSDB_DATA_TYPE_FLOAT: { float v = *(float*)pv; float delta = factor*(v - pDiffInfo->prev.d64); // direct previous may be null if (delta < 0 && pDiffInfo->ignoreNegative) { colDataSetNull_f(pOutput->nullbitmap, pos); } else { colDataAppendFloat(pOutput, pos, &delta); } pDiffInfo->prev.d64 = v; break; } case TSDB_DATA_TYPE_DOUBLE: { double v = *(double*)pv; double delta = factor*(v - pDiffInfo->prev.d64); // direct previous may be null if (delta < 0 && pDiffInfo->ignoreNegative) { colDataSetNull_f(pOutput->nullbitmap, pos); } else { colDataAppendDouble(pOutput, pos, &delta); } pDiffInfo->prev.d64 = v; break; } default: ASSERT(0); } } int32_t diffFunction(SqlFunctionCtx* pCtx) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SDiffInfo* pDiffInfo = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pInputCol = pInput->pData[0]; SColumnInfoData* pTsOutput = pCtx->pTsOutput; int32_t numOfElems = 0; TSKEY* tsList = (int64_t*)pInput->pPTS->pData; int32_t startOffset = pCtx->offset; SColumnInfoData* pOutput = (SColumnInfoData*)pCtx->pOutput; if (pCtx->order == TSDB_ORDER_ASC) { for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; i += 1) { int32_t pos = startOffset + numOfElems; if (colDataIsNull_f(pInputCol->nullbitmap, i)) { if (pDiffInfo->includeNull) { colDataSetNull_f(pOutput->nullbitmap, pos); if (tsList != NULL) { colDataAppendInt64(pTsOutput, pos, &tsList[i]); } numOfElems += 1; } continue; } char* pv = colDataGetData(pInputCol, i); if (pDiffInfo->hasPrev) { doHandleDiff(pDiffInfo, pInputCol->info.type, pv, pOutput, pos, pCtx->order); if (pTsOutput != NULL) { colDataAppendInt64(pTsOutput, pos, &tsList[i]); } numOfElems++; } else { doSetPrevVal(pDiffInfo, pInputCol->info.type, pv); } pDiffInfo->hasPrev = true; } } else { for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; i += 1) { int32_t pos = startOffset + numOfElems; if (colDataIsNull_f(pInputCol->nullbitmap, i)) { if (pDiffInfo->includeNull) { colDataSetNull_f(pOutput->nullbitmap, pos); if (tsList != NULL) { colDataAppendInt64(pTsOutput, pos, &tsList[i]); } numOfElems += 1; } continue; } char* pv = colDataGetData(pInputCol, i); // there is a row of previous data block to be handled in the first place. if (pDiffInfo->hasPrev) { doHandleDiff(pDiffInfo, pInputCol->info.type, pv, pOutput, pos, pCtx->order); if (pTsOutput != NULL) { colDataAppendInt64(pTsOutput, pos, &pDiffInfo->prevTs); } numOfElems++; } else { doSetPrevVal(pDiffInfo, pInputCol->info.type, pv); } pDiffInfo->hasPrev = true; if (pTsOutput != NULL) { pDiffInfo->prevTs = tsList[i]; } } } // initial value is not set yet return numOfElems; } bool getTopBotFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) { SValueNode* pkNode = (SValueNode*)nodesListGetNode(pFunc->pParameterList, 1); pEnv->calcMemSize = sizeof(STopBotRes) + pkNode->datum.i * sizeof(STopBotResItem); return true; } static STopBotRes* getTopBotOutputInfo(SqlFunctionCtx* pCtx) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); STopBotRes* pRes = GET_ROWCELL_INTERBUF(pResInfo); pRes->pItems = (STopBotResItem*)((char*)pRes + sizeof(STopBotRes)); return pRes; } static void doAddIntoResult(SqlFunctionCtx* pCtx, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock, uint16_t type, uint64_t uid, SResultRowEntryInfo* pEntryInfo, bool isTopQuery); int32_t topFunction(SqlFunctionCtx* pCtx) { int32_t numOfElems = 0; SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pCol = pInput->pData[0]; int32_t type = pInput->pData[0]->info.type; int32_t start = pInput->startRowIndex; for (int32_t i = start; i < pInput->numOfRows + start; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElems++; char* data = colDataGetData(pCol, i); doAddIntoResult(pCtx, data, i, pCtx->pSrcBlock, type, pInput->uid, pResInfo, true); } return TSDB_CODE_SUCCESS; } int32_t bottomFunction(SqlFunctionCtx* pCtx) { int32_t numOfElems = 0; SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pCol = pInput->pData[0]; int32_t type = pInput->pData[0]->info.type; int32_t start = pInput->startRowIndex; for (int32_t i = start; i < pInput->numOfRows + start; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElems++; char* data = colDataGetData(pCol, i); doAddIntoResult(pCtx, data, i, pCtx->pSrcBlock, type, pInput->uid, pResInfo, false); } return TSDB_CODE_SUCCESS; } static int32_t topBotResComparFn(const void* p1, const void* p2, const void* param) { uint16_t type = *(uint16_t*)param; STopBotResItem* val1 = (STopBotResItem*)p1; STopBotResItem* val2 = (STopBotResItem*)p2; if (IS_SIGNED_NUMERIC_TYPE(type)) { if (val1->v.i == val2->v.i) { return 0; } return (val1->v.i > val2->v.i) ? 1 : -1; } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { if (val1->v.u == val2->v.u) { return 0; } return (val1->v.u > val2->v.u) ? 1 : -1; } if (val1->v.d == val2->v.d) { return 0; } return (val1->v.d > val2->v.d) ? 1 : -1; } void doAddIntoResult(SqlFunctionCtx* pCtx, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock, uint16_t type, uint64_t uid, SResultRowEntryInfo* pEntryInfo, bool isTopQuery) { STopBotRes* pRes = getTopBotOutputInfo(pCtx); int32_t maxSize = pCtx->param[1].param.i; SVariant val = {0}; taosVariantCreateFromBinary(&val, pData, tDataTypes[type].bytes, type); STopBotResItem* pItems = pRes->pItems; assert(pItems != NULL); // not full yet if (pEntryInfo->numOfRes < maxSize) { STopBotResItem* pItem = &pItems[pEntryInfo->numOfRes]; pItem->v = val; pItem->uid = uid; // save the data of this tuple saveTupleData(pCtx, rowIndex, pSrcBlock, &pItem->tuplePos); // allocate the buffer and keep the data of this row into the new allocated buffer pEntryInfo->numOfRes++; taosheapsort((void*)pItems, sizeof(STopBotResItem), pEntryInfo->numOfRes, (const void*)&type, topBotResComparFn, !isTopQuery); } else { // replace the minimum value in the result if ((isTopQuery && ( (IS_SIGNED_NUMERIC_TYPE(type) && val.i > pItems[0].v.i) || (IS_UNSIGNED_NUMERIC_TYPE(type) && val.u > pItems[0].v.u) || (IS_FLOAT_TYPE(type) && val.d > pItems[0].v.d))) || (!isTopQuery && ( (IS_SIGNED_NUMERIC_TYPE(type) && val.i < pItems[0].v.i) || (IS_UNSIGNED_NUMERIC_TYPE(type) && val.u < pItems[0].v.u) || (IS_FLOAT_TYPE(type) && val.d < pItems[0].v.d)) )) { // replace the old data and the coresponding tuple data STopBotResItem* pItem = &pItems[0]; pItem->v = val; pItem->uid = uid; // save the data of this tuple by over writing the old data copyTupleData(pCtx, rowIndex, pSrcBlock, &pItem->tuplePos); taosheapadjust((void*)pItems, sizeof(STopBotResItem), 0, pEntryInfo->numOfRes - 1, (const void*)&type, topBotResComparFn, NULL, !isTopQuery); } } } void saveTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STuplePos* pPos) { SFilePage* pPage = NULL; int32_t completeRowSize = pSrcBlock->info.rowSize + pSrcBlock->info.numOfCols * sizeof(bool); if (pCtx->curBufPage == -1) { pPage = getNewBufPage(pCtx->pBuf, 0, &pCtx->curBufPage); pPage->num = sizeof(SFilePage); } else { pPage = getBufPage(pCtx->pBuf, pCtx->curBufPage); if (pPage->num + completeRowSize > getBufPageSize(pCtx->pBuf)) { pPage = getNewBufPage(pCtx->pBuf, 0, &pCtx->curBufPage); pPage->num = sizeof(SFilePage); } } pPos->pageId = pCtx->curBufPage; // keep the current row data, extract method int32_t offset = 0; bool* nullList = (bool*)((char*)pPage + pPage->num); char* pStart = (char*)(nullList + sizeof(bool) * pSrcBlock->info.numOfCols); for (int32_t i = 0; i < pSrcBlock->info.numOfCols; ++i) { SColumnInfoData* pCol = taosArrayGet(pSrcBlock->pDataBlock, i); bool isNull = colDataIsNull_s(pCol, rowIndex); if (isNull) { nullList[i] = true; offset += pCol->info.bytes; continue; } char* p = colDataGetData(pCol, rowIndex); if (IS_VAR_DATA_TYPE(pCol->info.type)) { memcpy(pStart + offset, p, varDataTLen(p)); } else { memcpy(pStart + offset, p, pCol->info.bytes); } offset += pCol->info.bytes; } pPos->offset = pPage->num; pPage->num += completeRowSize; setBufPageDirty(pPage, true); releaseBufPage(pCtx->pBuf, pPage); } void copyTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STuplePos* pPos) { SFilePage* pPage = getBufPage(pCtx->pBuf, pPos->pageId); bool* nullList = (bool*)((char*)pPage + pPos->offset); char* pStart = (char*)(nullList + pSrcBlock->info.numOfCols * sizeof(bool)); int32_t offset = 0; for (int32_t i = 0; i < pSrcBlock->info.numOfCols; ++i) { SColumnInfoData* pCol = taosArrayGet(pSrcBlock->pDataBlock, i); if ((nullList[i] = colDataIsNull_s(pCol, rowIndex)) == true) { continue; } char* p = colDataGetData(pCol, rowIndex); if (IS_VAR_DATA_TYPE(pCol->info.type)) { memcpy(pStart + offset, p, varDataTLen(p)); } else { memcpy(pStart + offset, p, pCol->info.bytes); } offset += pCol->info.bytes; } setBufPageDirty(pPage, true); releaseBufPage(pCtx->pBuf, pPage); } int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SResultRowEntryInfo* pEntryInfo = GET_RES_INFO(pCtx); STopBotRes* pRes = GET_ROWCELL_INTERBUF(pEntryInfo); pEntryInfo->complete = true; int32_t type = pCtx->input.pData[0]->info.type; int32_t slotId = pCtx->pExpr->base.resSchema.slotId; SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId); // todo assign the tag value and the corresponding row data int32_t currentRow = pBlock->info.rows; for (int32_t i = 0; i < pEntryInfo->numOfRes; ++i) { STopBotResItem* pItem = &pRes->pItems[i]; if (type == TSDB_DATA_TYPE_FLOAT) { float v = pItem->v.d; colDataAppend(pCol, currentRow, (const char*)&v, false); } else { colDataAppend(pCol, currentRow, (const char*)&pItem->v.i, false); } setSelectivityValue(pCtx, pBlock, &pRes->pItems[i].tuplePos, currentRow); currentRow += 1; } return pEntryInfo->numOfRes; } bool getSpreadFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SSpreadInfo); return true; } bool spreadFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } SSpreadInfo* pInfo = GET_ROWCELL_INTERBUF(pResultInfo); SET_DOUBLE_VAL(&pInfo->min, DBL_MAX); SET_DOUBLE_VAL(&pInfo->max, -DBL_MAX); pInfo->hasResult = false; return true; } int32_t spreadFunction(SqlFunctionCtx *pCtx) { int32_t numOfElems = 0; // Only the pre-computing information loaded and actual data does not loaded SInputColumnInfoData* pInput = &pCtx->input; SColumnDataAgg *pAgg = pInput->pColumnDataAgg[0]; int32_t type = pInput->pData[0]->info.type; SSpreadInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); if (pInput->colDataAggIsSet) { numOfElems = pInput->numOfRows - pAgg->numOfNull; if (numOfElems == 0) { goto _spread_over; } double tmin = 0.0, tmax = 0.0; if (IS_SIGNED_NUMERIC_TYPE(type)) { tmin = (double)GET_INT64_VAL(&pAgg->min); tmax = (double)GET_INT64_VAL(&pAgg->max); } else if (IS_FLOAT_TYPE(type)) { tmin = GET_DOUBLE_VAL(&pAgg->min); tmax = GET_DOUBLE_VAL(&pAgg->max); } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { tmin = (double)GET_UINT64_VAL(&pAgg->min); tmax = (double)GET_UINT64_VAL(&pAgg->max); } if (GET_DOUBLE_VAL(&pInfo->min) > tmin) { SET_DOUBLE_VAL(&pInfo->min, tmin); } if (GET_DOUBLE_VAL(&pInfo->max) < tmax) { SET_DOUBLE_VAL(&pInfo->max, tmax); } } else { // computing based on the true data block SColumnInfoData* pCol = pInput->pData[0]; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; // check the valid data one by one for (int32_t i = start; i < pInput->numOfRows + start; ++i) { if (colDataIsNull_f(pCol->nullbitmap, i)) { continue; } char *data = colDataGetData(pCol, i); double v = 0; GET_TYPED_DATA(v, double, type, data); if (v < GET_DOUBLE_VAL(&pInfo->min)) { SET_DOUBLE_VAL(&pInfo->min, v); } if (v > GET_DOUBLE_VAL(&pInfo->max)) { SET_DOUBLE_VAL(&pInfo->max, v); } numOfElems += 1; } } _spread_over: // data in the check operation are all null, not output SET_VAL(GET_RES_INFO(pCtx), numOfElems, 1); if (numOfElems > 0) { pInfo->hasResult = true; } return TSDB_CODE_SUCCESS; } int32_t spreadFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SSpreadInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); if (pInfo->hasResult == true) { SET_DOUBLE_VAL(&pInfo->result, pInfo->max - pInfo->min); } return functionFinalize(pCtx, pBlock); } bool getHistogramFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SHistoFuncInfo) + HISTOGRAM_MAX_BINS_NUM * sizeof(SHistoFuncBin); return true; } static int8_t getHistogramBinType(char *binTypeStr) { int8_t binType; if (strcasecmp(binTypeStr, "user_input") == 0) { binType = USER_INPUT_BIN; } else if (strcasecmp(binTypeStr, "linear_bin") == 0) { binType = LINEAR_BIN; } else if (strcasecmp(binTypeStr, "log_bin") == 0) { binType = LOG_BIN; } else { binType = UNKNOWN_BIN; } return binType; } static bool getHistogramBinDesc(SHistoFuncInfo *pInfo, char *binDescStr, int8_t binType, bool normalized) { cJSON* binDesc = cJSON_Parse(binDescStr); int32_t numOfBins; double* intervals; if (cJSON_IsObject(binDesc)) { /* linaer/log bins */ int32_t numOfParams = cJSON_GetArraySize(binDesc); int32_t startIndex; if (numOfParams != 4) { return false; } cJSON* start = cJSON_GetObjectItem(binDesc, "start"); cJSON* factor = cJSON_GetObjectItem(binDesc, "factor"); cJSON* width = cJSON_GetObjectItem(binDesc, "width"); cJSON* count = cJSON_GetObjectItem(binDesc, "count"); cJSON* infinity = cJSON_GetObjectItem(binDesc, "infinity"); if (!cJSON_IsNumber(start) || !cJSON_IsNumber(count) || !cJSON_IsBool(infinity)) { return false; } if (count->valueint <= 0 || count->valueint > 1000) { // limit count to 1000 return false; } if (isinf(start->valuedouble) || (width != NULL && isinf(width->valuedouble)) || (factor != NULL && isinf(factor->valuedouble)) || (count != NULL && isinf(count->valuedouble))) { return false; } int32_t counter = (int32_t)count->valueint; if (infinity->valueint == false) { startIndex = 0; numOfBins = counter + 1; } else { startIndex = 1; numOfBins = counter + 3; } intervals = taosMemoryCalloc(numOfBins, sizeof(double)); if (cJSON_IsNumber(width) && factor == NULL && binType == LINEAR_BIN) { // linear bin process if (width->valuedouble == 0) { taosMemoryFree(intervals); return false; } for (int i = 0; i < counter + 1; ++i) { intervals[startIndex] = start->valuedouble + i * width->valuedouble; if (isinf(intervals[startIndex])) { taosMemoryFree(intervals); return false; } startIndex++; } } else if (cJSON_IsNumber(factor) && width == NULL && binType == LOG_BIN) { // log bin process if (start->valuedouble == 0) { taosMemoryFree(intervals); return false; } if (factor->valuedouble < 0 || factor->valuedouble == 0 || factor->valuedouble == 1) { taosMemoryFree(intervals); return false; } for (int i = 0; i < counter + 1; ++i) { intervals[startIndex] = start->valuedouble * pow(factor->valuedouble, i * 1.0); if (isinf(intervals[startIndex])) { taosMemoryFree(intervals); return false; } startIndex++; } } else { taosMemoryFree(intervals); return false; } if (infinity->valueint == true) { intervals[0] = -INFINITY; intervals[numOfBins - 1] = INFINITY; // in case of desc bin orders, -inf/inf should be swapped ASSERT(numOfBins >= 4); if (intervals[1] > intervals[numOfBins - 2]) { TSWAP(intervals[0], intervals[numOfBins - 1]); } } } else if (cJSON_IsArray(binDesc)) { /* user input bins */ if (binType != USER_INPUT_BIN) { return false; } numOfBins = cJSON_GetArraySize(binDesc); intervals = taosMemoryCalloc(numOfBins, sizeof(double)); cJSON* bin = binDesc->child; if (bin == NULL) { taosMemoryFree(intervals); return false; } int i = 0; while (bin) { intervals[i] = bin->valuedouble; if (!cJSON_IsNumber(bin)) { taosMemoryFree(intervals); return false; } if (i != 0 && intervals[i] <= intervals[i - 1]) { taosMemoryFree(intervals); return false; } bin = bin->next; i++; } } else { return false; } pInfo->numOfBins = numOfBins - 1; pInfo->normalized = normalized; for (int32_t i = 0; i < pInfo->numOfBins; ++i) { pInfo->bins[i].lower = intervals[i] < intervals[i + 1] ? intervals[i] : intervals[i + 1]; pInfo->bins[i].upper = intervals[i + 1] > intervals[i] ? intervals[i + 1] : intervals[i]; pInfo->bins[i].count = 0; } taosMemoryFree(intervals); return true; } bool histogramFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo *pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } SHistoFuncInfo *pInfo = GET_ROWCELL_INTERBUF(pResultInfo); pInfo->numOfBins = 0; pInfo->totalCount = 0; pInfo->normalized = 0; int8_t binType = getHistogramBinType(varDataVal(pCtx->param[1].param.pz)); if (binType == UNKNOWN_BIN) { return false; } char* binDesc = varDataVal(pCtx->param[2].param.pz); int64_t normalized = pCtx->param[3].param.i; if (normalized != 0 && normalized != 1) { return false; } if (!getHistogramBinDesc(pInfo, binDesc, binType, (bool)normalized)) { return false; } return true; } int32_t histogramFunction(SqlFunctionCtx *pCtx) { SHistoFuncInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pCol = pInput->pData[0]; int32_t type = pInput->pData[0]->info.type; int32_t start = pInput->startRowIndex; int32_t numOfRows = pInput->numOfRows; int32_t numOfElems = 0; for (int32_t i = start; i < numOfRows + start; ++i) { if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) { continue; } numOfElems++; char* data = colDataGetData(pCol, i); double v; GET_TYPED_DATA(v, double, type, data); for (int32_t k = 0; k < pInfo->numOfBins; ++k) { if (v > pInfo->bins[k].lower && v <= pInfo->bins[k].upper) { pInfo->bins[k].count++; pInfo->totalCount++; break; } } } SET_VAL(GET_RES_INFO(pCtx), numOfElems, pInfo->numOfBins); return TSDB_CODE_SUCCESS; } int32_t histogramFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SHistoFuncInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); int32_t slotId = pCtx->pExpr->base.resSchema.slotId; SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId); int32_t currentRow = pBlock->info.rows; if (pInfo->normalized) { for (int32_t k = 0; k < pResInfo->numOfRes; ++k) { if(pInfo->totalCount != 0) { pInfo->bins[k].percentage = pInfo->bins[k].count / (double)pInfo->totalCount; } else { pInfo->bins[k].percentage = 0; } } } for (int32_t i = 0; i < pResInfo->numOfRes; ++i) { int32_t len; char buf[512] = {0}; if (!pInfo->normalized) { len = sprintf(varDataVal(buf), "{\"lower_bin\":%g, \"upper_bin\":%g, \"count\":%"PRId64"}", pInfo->bins[i].lower, pInfo->bins[i].upper, pInfo->bins[i].count); } else { len = sprintf(varDataVal(buf), "{\"lower_bin\":%g, \"upper_bin\":%g, \"count\":%lf}", pInfo->bins[i].lower, pInfo->bins[i].upper, pInfo->bins[i].percentage); } varDataSetLen(buf, len); colDataAppend(pCol, currentRow, buf, false); currentRow++; } return pResInfo->numOfRes; } bool getStateFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SStateInfo); return true; } static int8_t getStateOpType(char *opStr) { int8_t opType; if (strcasecmp(opStr, "LT") == 0) { opType = STATE_OPER_LT; } else if (strcasecmp(opStr, "GT") == 0) { opType = STATE_OPER_GT; } else if (strcasecmp(opStr, "LE") == 0) { opType = STATE_OPER_LE; } else if (strcasecmp(opStr, "GE") == 0) { opType = STATE_OPER_GE; } else if (strcasecmp(opStr, "NE") == 0) { opType = STATE_OPER_NE; } else if (strcasecmp(opStr, "EQ") == 0) { opType = STATE_OPER_EQ; } else { opType = STATE_OPER_INVALID; } return opType; } #define GET_STATE_VAL(param) \ ((param.nType == TSDB_DATA_TYPE_BIGINT) ? (param.i) : (param.d)) #define STATE_COMP(_op, _lval, _param) \ STATE_COMP_IMPL(_op, _lval, GET_STATE_VAL(_param)) #define STATE_COMP_IMPL(_op, _lval, _rval) \ do { \ switch(_op) { \ case STATE_OPER_LT: \ return ((_lval) < (_rval)); \ break; \ case STATE_OPER_GT: \ return ((_lval) > (_rval)); \ break; \ case STATE_OPER_LE: \ return ((_lval) <= (_rval)); \ break; \ case STATE_OPER_GE: \ return ((_lval) >= (_rval)); \ break; \ case STATE_OPER_NE: \ return ((_lval) != (_rval)); \ break; \ case STATE_OPER_EQ: \ return ((_lval) == (_rval)); \ break; \ default: \ break; \ } \ } while (0) static bool checkStateOp(int8_t op, SColumnInfoData* pCol, int32_t index, SVariant param) { char* data = colDataGetData(pCol, index); switch(pCol->info.type) { case TSDB_DATA_TYPE_TINYINT: { int8_t v = *(int8_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_UTINYINT: { uint8_t v = *(uint8_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_SMALLINT: { int16_t v = *(int16_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_USMALLINT: { uint16_t v = *(uint16_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_INT: { int32_t v = *(int32_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_UINT: { uint32_t v = *(uint32_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_BIGINT: { int64_t v = *(int64_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_UBIGINT: { uint64_t v = *(uint64_t *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_FLOAT: { float v = *(float *)data; STATE_COMP(op, v, param); break; } case TSDB_DATA_TYPE_DOUBLE: { double v = *(double *)data; STATE_COMP(op, v, param); break; } default: { ASSERT(0); } } return false; } int32_t stateCountFunction(SqlFunctionCtx* pCtx) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SStateInfo* pInfo = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; SColumnInfoData* pInputCol = pInput->pData[0]; int32_t numOfElems = 0; SColumnInfoData* pOutput = (SColumnInfoData*)pCtx->pOutput; int8_t op = getStateOpType(varDataVal(pCtx->param[1].param.pz)); if (STATE_OPER_INVALID == op) { return 0; } for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; i += 1) { numOfElems++; if (colDataIsNull_f(pInputCol->nullbitmap, i)) { colDataAppendNULL(pOutput, i); continue; } bool ret = checkStateOp(op, pInputCol, i, pCtx->param[2].param); int64_t output = -1; if (ret) { output = ++pInfo->count; } else { pInfo->count = 0; } colDataAppend(pOutput, i, (char *)&output, false); } return numOfElems; } int32_t stateDurationFunction(SqlFunctionCtx* pCtx) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SStateInfo* pInfo = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; TSKEY* tsList = (int64_t*)pInput->pPTS->pData; SColumnInfoData* pInputCol = pInput->pData[0]; int32_t numOfElems = 0; SColumnInfoData* pOutput = (SColumnInfoData*)pCtx->pOutput; //TODO: process timeUnit for different db precisions int32_t timeUnit = 1000; if (pCtx->numOfParams == 5) { //TODO: param number incorrect timeUnit = pCtx->param[3].param.i; } int8_t op = getStateOpType(varDataVal(pCtx->param[1].param.pz)); if (STATE_OPER_INVALID == op) { return 0; } for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; i += 1) { numOfElems++; if (colDataIsNull_f(pInputCol->nullbitmap, i)) { colDataAppendNULL(pOutput, i); continue; } bool ret = checkStateOp(op, pInputCol, i, pCtx->param[2].param); int64_t output = -1; if (ret) { if (pInfo->durationStart == 0) { output = 0; pInfo->durationStart = tsList[i]; } else { output = (tsList[i] - pInfo->durationStart) / timeUnit; } } else { pInfo->durationStart = 0; } colDataAppend(pOutput, i, (char *)&output, false); } return numOfElems; } bool getCsumFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SSumRes); return true; } int32_t csumFunction(SqlFunctionCtx* pCtx) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SSumRes* pSumRes = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; TSKEY* tsList = (int64_t*)pInput->pPTS->pData; SColumnInfoData* pInputCol = pInput->pData[0]; SColumnInfoData* pTsOutput = pCtx->pTsOutput; SColumnInfoData* pOutput = (SColumnInfoData*)pCtx->pOutput; int32_t numOfElems = 0; int32_t type = pInputCol->info.type; int32_t startOffset = pCtx->offset; for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; i += 1) { int32_t pos = startOffset + numOfElems; if (colDataIsNull_f(pInputCol->nullbitmap, i)) { //colDataAppendNULL(pOutput, i); continue; } char* data = colDataGetData(pInputCol, i); if (IS_SIGNED_NUMERIC_TYPE(type)) { int64_t v; GET_TYPED_DATA(v, int64_t, type, data); pSumRes->isum += v; colDataAppend(pOutput, pos, (char *)&pSumRes->isum, false); } else if (IS_UNSIGNED_NUMERIC_TYPE(type)) { uint64_t v; GET_TYPED_DATA(v, uint64_t, type, data); pSumRes->usum += v; colDataAppend(pOutput, pos, (char *)&pSumRes->usum, false); } else if (IS_FLOAT_TYPE(type)) { double v; GET_TYPED_DATA(v, double, type, data); pSumRes->dsum += v; colDataAppend(pOutput, pos, (char *)&pSumRes->dsum, false); } //TODO: remove this after pTsOutput is handled if (pTsOutput != NULL) { colDataAppendInt64(pTsOutput, pos, &tsList[i]); } numOfElems++; } return numOfElems; } bool getMavgFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) { pEnv->calcMemSize = sizeof(SMavgInfo) + MAVG_MAX_POINTS_NUM * sizeof(double); return true; } bool mavgFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo *pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } SMavgInfo *pInfo = GET_ROWCELL_INTERBUF(pResultInfo); pInfo->pos = 0; pInfo->sum = 0; pInfo->numOfPoints = pCtx->param[1].param.i; if (pInfo->numOfPoints < 1 || pInfo->numOfPoints > MAVG_MAX_POINTS_NUM) { return false; } pInfo->pointsMeet = false; return true; } int32_t mavgFunction(SqlFunctionCtx* pCtx) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SMavgInfo* pInfo = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; TSKEY* tsList = (int64_t*)pInput->pPTS->pData; SColumnInfoData* pInputCol = pInput->pData[0]; SColumnInfoData* pTsOutput = pCtx->pTsOutput; SColumnInfoData* pOutput = (SColumnInfoData*)pCtx->pOutput; int32_t numOfElems = 0; int32_t type = pInputCol->info.type; int32_t startOffset = pCtx->offset; for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; i += 1) { int32_t pos = startOffset + numOfElems; if (colDataIsNull_f(pInputCol->nullbitmap, i)) { //colDataAppendNULL(pOutput, i); continue; } char* data = colDataGetData(pInputCol, i); double v; GET_TYPED_DATA(v, double, type, data); if (!pInfo->pointsMeet && (pInfo->pos < pInfo->numOfPoints - 1)) { pInfo->points[pInfo->pos] = v; pInfo->sum += v; } else { if (!pInfo->pointsMeet && (pInfo->pos == pInfo->numOfPoints - 1)) { pInfo->sum +=v; pInfo->pointsMeet = true; } else { pInfo->sum = pInfo->sum + v - pInfo->points[pInfo->pos]; } pInfo->points[pInfo->pos] = v; double result = pInfo->sum / pInfo->numOfPoints; colDataAppend(pOutput, pos, (char *)&result, false); //TODO: remove this after pTsOutput is handled if (pTsOutput != NULL) { colDataAppendInt64(pTsOutput, pos, &tsList[i]); } numOfElems++; } pInfo->pos++; if (pInfo->pos == pInfo->numOfPoints) { pInfo->pos = 0; } } return numOfElems; } bool getSampleFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) { SColumnNode* pCol = (SColumnNode*)nodesListGetNode(pFunc->pParameterList, 0); SValueNode* pVal = (SValueNode*)nodesListGetNode(pFunc->pParameterList, 1); int32_t numOfSamples = pVal->datum.i; pEnv->calcMemSize = sizeof(SSampleInfo) + numOfSamples * (pCol->node.resType.bytes + sizeof(int64_t)); return true; } bool sampleFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo *pResultInfo) { if (!functionSetup(pCtx, pResultInfo)) { return false; } taosSeedRand(taosSafeRand()); SSampleInfo *pInfo = GET_ROWCELL_INTERBUF(pResultInfo); pInfo->samples = pCtx->param[1].param.i; pInfo->totalPoints = 0; pInfo->numSampled = 0; pInfo->colType = pCtx->resDataInfo.type; pInfo->colBytes = pCtx->resDataInfo.bytes; if (pInfo->samples < 1 || pInfo->samples > SAMPLE_MAX_POINTS_NUM) { return false; } pInfo->data = (char *)pInfo + sizeof(SSampleInfo); pInfo->timestamp = (int64_t *)((char *)pInfo + sizeof(SSampleInfo) + pInfo->samples * pInfo->colBytes); return true; } static void sampleAssignResult(SSampleInfo* pInfo, char *data, TSKEY ts, int32_t index) { assignVal(pInfo->data + index * pInfo->colBytes, data, pInfo->colBytes, pInfo->colType); *(pInfo->timestamp + index) = ts; } static void doReservoirSample(SSampleInfo* pInfo, char *data, TSKEY ts, int32_t index) { pInfo->totalPoints++; if (pInfo->numSampled < pInfo->samples) { sampleAssignResult(pInfo, data, ts, pInfo->numSampled); pInfo->numSampled++; } else { int32_t j = taosRand() % (pInfo->totalPoints); if (j < pInfo->samples) { sampleAssignResult(pInfo, data, ts, j); } } } int32_t sampleFunction(SqlFunctionCtx* pCtx) { SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); SSampleInfo* pInfo = GET_ROWCELL_INTERBUF(pResInfo); SInputColumnInfoData* pInput = &pCtx->input; TSKEY* tsList = (int64_t*)pInput->pPTS->pData; SColumnInfoData* pInputCol = pInput->pData[0]; SColumnInfoData* pTsOutput = pCtx->pTsOutput; SColumnInfoData* pOutput = (SColumnInfoData*)pCtx->pOutput; int32_t startOffset = pCtx->offset; for (int32_t i = pInput->startRowIndex; i < pInput->numOfRows + pInput->startRowIndex; i += 1) { if (colDataIsNull_f(pInputCol->nullbitmap, i)) { //colDataAppendNULL(pOutput, i); continue; } char* data = colDataGetData(pInputCol, i); doReservoirSample(pInfo, data, tsList[i], i); } for (int32_t i = 0; i < pInfo->numSampled; ++i) { int32_t pos = startOffset + i; colDataAppend(pOutput, pos, pInfo->data + i * pInfo->colBytes, false); //TODO: handle ts output } return pInfo->numSampled; } //int32_t sampleFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { // SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx); // SSampleInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx)); // int32_t slotId = pCtx->pExpr->base.resSchema.slotId; // SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId); // // //int32_t currentRow = pBlock->info.rows; // pResInfo->numOfRes = pInfo->numSampled; // // for (int32_t i = 0; i < pInfo->numSampled; ++i) { // colDataAppend(pCol, i, pInfo->data + i * pInfo->colBytes, false); // //TODO: handle ts output // } // // return pResInfo->numOfRes; //}