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homework-jianmu/source/libs/executor/src/tfill.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 "os.h"
#include "taosdef.h"
#include "tmsg.h"
#include "ttypes.h"
#include "tcommon.h"
#include "thash.h"
#include "ttime.h"
#include "executorInt.h"
#include "function.h"
#include "querynodes.h"
#include "tdatablock.h"
#include "tfill.h"
#define FILL_IS_ASC_FILL(_f) ((_f)->order == TSDB_ORDER_ASC)
#define DO_INTERPOLATION(_v1, _v2, _k1, _k2, _k) \
((_v1) + ((_v2) - (_v1)) * (((double)(_k)) - ((double)(_k1))) / (((double)(_k2)) - ((double)(_k1))))
static void setTagsValue(SFillInfo* pFillInfo, void** data, int32_t genRows) {
for (int32_t j = 0; j < pFillInfo->numOfCols; ++j) {
SFillColInfo* pCol = &pFillInfo->pFillCol[j];
if (TSDB_COL_IS_NORMAL_COL(pCol->flag) || TSDB_COL_IS_UD_COL(pCol->flag)) {
continue;
}
SResSchema* pSchema = &pCol->pExpr->base.resSchema;
char* val1 = elePtrAt(data[j], pSchema->bytes, genRows);
assert(pCol->tagIndex >= 0 && pCol->tagIndex < pFillInfo->numOfTags);
SFillTagColInfo* pTag = &pFillInfo->pTags[pCol->tagIndex];
assignVal(val1, pTag->tagVal, pSchema->bytes, pSchema->type);
}
}
static void setNullRow(SSDataBlock* pBlock, int32_t numOfCol, int32_t rowIndex) {
// the first are always the timestamp column, so start from the second column.
for (int32_t i = 1; i < pBlock->info.numOfCols; ++i) {
SColumnInfoData* p = taosArrayGet(pBlock->pDataBlock, i);
colDataAppendNULL(p, rowIndex);
}
}
#define GET_DEST_SLOT_ID(_p) ((_p)->pExpr->base.resSchema.slotId)
#define GET_SRC_SLOT_ID(_p) ((_p)->pExpr->base.pParam[0].pCol->slotId)
static void doSetVal(SColumnInfoData* pDstColInfoData, int32_t rowIndex, const SGroupKeys* pKey);
static void doFillOneRowResult(SFillInfo* pFillInfo, SSDataBlock* pBlock, SSDataBlock* pSrcBlock, int64_t ts,
bool outOfBound) {
SPoint point1, point2, point;
int32_t step = GET_FORWARD_DIRECTION_FACTOR(pFillInfo->order);
// set the primary timestamp column value
int32_t index = pFillInfo->numOfCurrent;
SColumnInfoData* pCol0 = taosArrayGet(pBlock->pDataBlock, 0);
char* val = colDataGetData(pCol0, index);
*(TSKEY*)val = pFillInfo->currentKey;
// set the other values
if (pFillInfo->type == TSDB_FILL_PREV) {
SArray* p = FILL_IS_ASC_FILL(pFillInfo) ? pFillInfo->prev : pFillInfo->next;
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
SGroupKeys* pKey = taosArrayGet(p, i);
SColumnInfoData* pDstColInfoData = taosArrayGet(pBlock->pDataBlock, GET_DEST_SLOT_ID(pCol));
doSetVal(pDstColInfoData, index, pKey);
}
} else if (pFillInfo->type == TSDB_FILL_NEXT) {
SArray* p = FILL_IS_ASC_FILL(pFillInfo) ? pFillInfo->next : pFillInfo->prev;
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
SGroupKeys* pKey = taosArrayGet(p, i);
SColumnInfoData* pDstColInfoData = taosArrayGet(pBlock->pDataBlock, GET_DEST_SLOT_ID(pCol));
doSetVal(pDstColInfoData, index, pKey);
}
} else if (pFillInfo->type == TSDB_FILL_LINEAR) {
// TODO : linear interpolation supports NULL value
if (outOfBound) {
setNullRow(pBlock, pFillInfo->numOfCols, index);
} else {
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
int32_t srcSlotId = GET_SRC_SLOT_ID(pCol);
int32_t dstSlotId = GET_DEST_SLOT_ID(pCol);
SColumnInfoData* pDstCol = taosArrayGet(pBlock->pDataBlock, dstSlotId);
int16_t type = pCol->pExpr->base.resSchema.type;
SGroupKeys* pKey = taosArrayGet(pFillInfo->prev, i);
if (IS_VAR_DATA_TYPE(type) || type == TSDB_DATA_TYPE_BOOL || pKey->isNull) {
colDataAppendNULL(pDstCol, index);
continue;
}
SGroupKeys* pKey1 = taosArrayGet(pFillInfo->prev, 0);
int64_t prevTs = *(int64_t*)pKey1->pData;
SColumnInfoData* pSrcCol = taosArrayGet(pSrcBlock->pDataBlock, srcSlotId);
char* data = colDataGetData(pSrcCol, pFillInfo->index);
point1 = (SPoint){.key = prevTs, .val = pKey->pData};
point2 = (SPoint){.key = ts, .val = data};
int64_t out = 0;
point = (SPoint){.key = pFillInfo->currentKey, .val = &out};
taosGetLinearInterpolationVal(&point, type, &point1, &point2, type);
colDataAppend(pDstCol, index, (const char*)&out, false);
}
}
} else if (pFillInfo->type == TSDB_FILL_NULL) { // fill with NULL
setNullRow(pBlock, pFillInfo->numOfCols, index);
} else { // fill with user specified value for each column
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag) /* || IS_VAR_DATA_TYPE(pCol->schema.type)*/) {
continue;
}
SVariant* pVar = &pFillInfo->pFillCol[i].fillVal;
SColumnInfoData* pDst = taosArrayGet(pBlock->pDataBlock, i);
if (pDst->info.type == TSDB_DATA_TYPE_FLOAT) {
float v = 0;
GET_TYPED_DATA(v, float, pVar->nType, &pVar->i);
colDataAppend(pDst, index, (char*)&v, false);
} else if (pDst->info.type == TSDB_DATA_TYPE_DOUBLE) {
double v = 0;
GET_TYPED_DATA(v, double, pVar->nType, &pVar->i);
colDataAppend(pDst, index, (char*)&v, false);
} else if (IS_SIGNED_NUMERIC_TYPE(pDst->info.type)) {
int64_t v = 0;
GET_TYPED_DATA(v, int64_t, pVar->nType, &pVar->i);
colDataAppend(pDst, index, (char*)&v, false);
}
}
}
// setTagsValue(pFillInfo, data, index);
SInterval* pInterval = &pFillInfo->interval;
pFillInfo->currentKey =
taosTimeAdd(pFillInfo->currentKey, pInterval->sliding * step, pInterval->slidingUnit, pInterval->precision);
pFillInfo->numOfCurrent++;
}
void doSetVal(SColumnInfoData* pDstCol, int32_t rowIndex, const SGroupKeys* pKey) {
if (pKey->isNull) {
colDataAppendNULL(pDstCol, rowIndex);
} else {
colDataAppend(pDstCol, rowIndex, pKey->pData, false);
}
}
static void initBeforeAfterDataBuf(SFillInfo* pFillInfo) {
if (taosArrayGetSize(pFillInfo->next) > 0) {
return;
}
for (int i = 0; i < pFillInfo->numOfCols; i++) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
SGroupKeys key = {0};
SResSchema* pSchema = &pCol->pExpr->base.resSchema;
key.pData = taosMemoryMalloc(pSchema->bytes);
key.isNull = true;
key.bytes = pSchema->bytes;
key.type = pSchema->type;
taosArrayPush(pFillInfo->next, &key);
key.pData = taosMemoryMalloc(pSchema->bytes);
taosArrayPush(pFillInfo->prev, &key);
}
}
static void saveColData(SArray* rowBuf, int32_t columnIndex, const char* src, bool isNull);
static void copyCurrentRowIntoBuf(SFillInfo* pFillInfo, int32_t rowIndex, SArray* pRow) {
for (int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
int32_t srcSlotId = GET_SRC_SLOT_ID(&pFillInfo->pFillCol[i]);
SColumnInfoData* pSrcCol = taosArrayGet(pFillInfo->pSrcBlock->pDataBlock, srcSlotId);
bool isNull = colDataIsNull_s(pSrcCol, rowIndex);
char* p = colDataGetData(pSrcCol, rowIndex);
saveColData(pRow, i, p, isNull);
}
}
static int32_t fillResultImpl(SFillInfo* pFillInfo, SSDataBlock* pBlock, int32_t outputRows) {
pFillInfo->numOfCurrent = 0;
// todo make sure the first column is always the primary timestamp column?
SColumnInfoData* pTsCol = taosArrayGet(pFillInfo->pSrcBlock->pDataBlock, 0);
int32_t step = GET_FORWARD_DIRECTION_FACTOR(pFillInfo->order);
bool ascFill = FILL_IS_ASC_FILL(pFillInfo);
#if 0
ASSERT(ascFill && (pFillInfo->currentKey >= pFillInfo->start) || (!ascFill && (pFillInfo->currentKey <= pFillInfo->start)));
#endif
while (pFillInfo->numOfCurrent < outputRows) {
int64_t ts = ((int64_t*)pTsCol->pData)[pFillInfo->index];
// set the next value for interpolation
if ((pFillInfo->currentKey < ts && ascFill) || (pFillInfo->currentKey > ts && !ascFill)) {
copyCurrentRowIntoBuf(pFillInfo, pFillInfo->index, pFillInfo->next);
}
if (((pFillInfo->currentKey < ts && ascFill) || (pFillInfo->currentKey > ts && !ascFill)) &&
pFillInfo->numOfCurrent < outputRows) {
// fill the gap between two input rows
while (((pFillInfo->currentKey < ts && ascFill) || (pFillInfo->currentKey > ts && !ascFill)) &&
pFillInfo->numOfCurrent < outputRows) {
doFillOneRowResult(pFillInfo, pBlock, pFillInfo->pSrcBlock, ts, false);
}
// output buffer is full, abort
if (pFillInfo->numOfCurrent == outputRows) {
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
return outputRows;
}
} else {
assert(pFillInfo->currentKey == ts);
if (pFillInfo->type == TSDB_FILL_NEXT && (pFillInfo->index + 1) < pFillInfo->numOfRows) {
++pFillInfo->index;
copyCurrentRowIntoBuf(pFillInfo, pFillInfo->index, pFillInfo->next);
--pFillInfo->index;
}
// assign rows to dst buffer
for (int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag) /* || IS_VAR_DATA_TYPE(pCol->schema.type)*/) {
continue;
}
int32_t srcSlotId = GET_SRC_SLOT_ID(pCol);
int32_t dstSlotId = GET_DEST_SLOT_ID(pCol);
SColumnInfoData* pDst = taosArrayGet(pBlock->pDataBlock, dstSlotId);
SColumnInfoData* pSrc = taosArrayGet(pFillInfo->pSrcBlock->pDataBlock, srcSlotId);
char* src = colDataGetData(pSrc, pFillInfo->index);
if (i == 0 || (/*pCol->functionId != FUNCTION_COUNT &&*/ !colDataIsNull_s(pSrc, pFillInfo->index)) /*||
(pCol->functionId == FUNCTION_COUNT && GET_INT64_VAL(src) != 0)*/) {
bool isNull = colDataIsNull_s(pSrc, pFillInfo->index);
colDataAppend(pDst, pFillInfo->numOfCurrent, src, isNull);
saveColData(pFillInfo->prev, i, src, isNull);
} else { // i > 0 and data is null , do interpolation
if (pFillInfo->type == TSDB_FILL_PREV) {
SGroupKeys* pKey = taosArrayGet(pFillInfo->prev, i);
doSetVal(pDst, pFillInfo->numOfCurrent, pKey);
} else if (pFillInfo->type == TSDB_FILL_LINEAR) {
bool isNull = colDataIsNull_s(pSrc, pFillInfo->index);
colDataAppend(pDst, pFillInfo->numOfCurrent, src, isNull);
saveColData(pFillInfo->prev, i, src, isNull);
} else if (pFillInfo->type == TSDB_FILL_NULL) {
colDataAppendNULL(pDst, pFillInfo->numOfCurrent);
} else if (pFillInfo->type == TSDB_FILL_NEXT) {
SGroupKeys* pKey = taosArrayGet(pFillInfo->next, i);
doSetVal(pDst, pFillInfo->numOfCurrent, pKey);
} else {
SVariant* pVar = &pFillInfo->pFillCol[i].fillVal;
colDataAppend(pDst, pFillInfo->numOfCurrent, (char*)&pVar->i, false);
}
}
}
// set the tag value for final result
// setTagsValue(pFillInfo, data, pFillInfo->numOfCurrent);
SInterval* pInterval = &pFillInfo->interval;
pFillInfo->currentKey =
taosTimeAdd(pFillInfo->currentKey, pInterval->sliding * step, pInterval->slidingUnit, pInterval->precision);
pFillInfo->index += 1;
pFillInfo->numOfCurrent += 1;
}
if (pFillInfo->index >= pFillInfo->numOfRows || pFillInfo->numOfCurrent >= outputRows) {
/* the raw data block is exhausted, next value does not exists */
// if (pFillInfo->index >= pFillInfo->numOfRows) {
// taosMemoryFreeClear(*next);
// }
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
return pFillInfo->numOfCurrent;
}
}
return pFillInfo->numOfCurrent;
}
static void saveColData(SArray* rowBuf, int32_t columnIndex, const char* src, bool isNull) {
SGroupKeys* pKey = taosArrayGet(rowBuf, columnIndex);
if (isNull) {
pKey->isNull = true;
} else {
memcpy(pKey->pData, src, pKey->bytes);
pKey->isNull = false;
}
}
static int64_t appendFilledResult(SFillInfo* pFillInfo, SSDataBlock* pBlock, int64_t resultCapacity) {
/*
* These data are generated according to fill strategy, since the current timestamp is out of the time window of
* real result set. Note that we need to keep the direct previous result rows, to generated the filled data.
*/
pFillInfo->numOfCurrent = 0;
while (pFillInfo->numOfCurrent < resultCapacity) {
doFillOneRowResult(pFillInfo, pBlock, pFillInfo->pSrcBlock, pFillInfo->start, true);
}
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
assert(pFillInfo->numOfCurrent == resultCapacity);
return resultCapacity;
}
// there are no duplicated tags in the SFillTagColInfo list
static int32_t setTagColumnInfo(SFillInfo* pFillInfo, int32_t numOfCols, int32_t capacity) {
int32_t rowsize = 0;
int32_t numOfTags = 0;
int32_t k = 0;
for (int32_t i = 0; i < numOfCols; ++i) {
SFillColInfo* pColInfo = &pFillInfo->pFillCol[i];
SResSchema* pSchema = &pColInfo->pExpr->base.resSchema;
if (TSDB_COL_IS_TAG(pColInfo->flag) || pSchema->type == TSDB_DATA_TYPE_BINARY) {
numOfTags += 1;
bool exists = false;
int32_t index = -1;
for (int32_t j = 0; j < k; ++j) {
if (pFillInfo->pTags[j].col.colId == pSchema->slotId) {
exists = true;
index = j;
break;
}
}
if (!exists) {
SSchema* pSchema1 = &pFillInfo->pTags[k].col;
pSchema1->colId = pSchema->slotId;
pSchema1->type = pSchema->type;
pSchema1->bytes = pSchema->bytes;
pFillInfo->pTags[k].tagVal = taosMemoryCalloc(1, pSchema->bytes);
pColInfo->tagIndex = k;
k += 1;
} else {
pColInfo->tagIndex = index;
}
}
rowsize += pSchema->bytes;
}
pFillInfo->numOfTags = numOfTags;
assert(k <= pFillInfo->numOfTags);
return rowsize;
}
static int32_t taosNumOfRemainRows(SFillInfo* pFillInfo) {
if (pFillInfo->numOfRows == 0 || (pFillInfo->numOfRows > 0 && pFillInfo->index >= pFillInfo->numOfRows)) {
return 0;
}
return pFillInfo->numOfRows - pFillInfo->index;
}
struct SFillInfo* taosCreateFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int32_t capacity, int32_t numOfCols,
SInterval* pInterval, int32_t fillType, struct SFillColInfo* pCol,
const char* id) {
if (fillType == TSDB_FILL_NONE) {
return NULL;
}
SFillInfo* pFillInfo = taosMemoryCalloc(1, sizeof(SFillInfo));
if (pFillInfo == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
taosResetFillInfo(pFillInfo, skey);
pFillInfo->order = order;
switch (fillType) {
case FILL_MODE_NONE:
pFillInfo->type = TSDB_FILL_NONE;
break;
case FILL_MODE_PREV:
pFillInfo->type = TSDB_FILL_PREV;
break;
case FILL_MODE_NULL:
pFillInfo->type = TSDB_FILL_NULL;
break;
case FILL_MODE_LINEAR:
pFillInfo->type = TSDB_FILL_LINEAR;
break;
case FILL_MODE_NEXT:
pFillInfo->type = TSDB_FILL_NEXT;
break;
case FILL_MODE_VALUE:
pFillInfo->type = TSDB_FILL_SET_VALUE;
break;
default:
terrno = TSDB_CODE_INVALID_PARA;
return NULL;
}
pFillInfo->type = fillType;
pFillInfo->pFillCol = pCol;
pFillInfo->numOfTags = numOfTags;
pFillInfo->numOfCols = numOfCols;
pFillInfo->alloc = capacity;
pFillInfo->id = id;
pFillInfo->interval = *pInterval;
// if (numOfTags > 0) {
pFillInfo->pTags = taosMemoryCalloc(numOfCols, sizeof(SFillTagColInfo));
for (int32_t i = 0; i < numOfCols; ++i) {
pFillInfo->pTags[i].col.colId = -2; // TODO
}
// }
pFillInfo->next = taosArrayInit(numOfCols, sizeof(SGroupKeys));
pFillInfo->prev = taosArrayInit(numOfCols, sizeof(SGroupKeys));
initBeforeAfterDataBuf(pFillInfo);
pFillInfo->rowSize = setTagColumnInfo(pFillInfo, pFillInfo->numOfCols, pFillInfo->alloc);
assert(pFillInfo->rowSize > 0);
return pFillInfo;
}
void taosResetFillInfo(SFillInfo* pFillInfo, TSKEY startTimestamp) {
pFillInfo->start = startTimestamp;
pFillInfo->currentKey = startTimestamp;
pFillInfo->end = startTimestamp;
pFillInfo->index = -1;
pFillInfo->numOfRows = 0;
pFillInfo->numOfCurrent = 0;
pFillInfo->numOfTotal = 0;
}
void* taosDestroyFillInfo(SFillInfo* pFillInfo) {
if (pFillInfo == NULL) {
return NULL;
}
taosArrayDestroy(pFillInfo->prev);
taosArrayDestroy(pFillInfo->next);
for (int32_t i = 0; i < pFillInfo->numOfTags; ++i) {
taosMemoryFreeClear(pFillInfo->pTags[i].tagVal);
}
taosMemoryFreeClear(pFillInfo->pTags);
taosMemoryFreeClear(pFillInfo->pFillCol);
taosMemoryFreeClear(pFillInfo);
return NULL;
}
void taosFillSetStartInfo(SFillInfo* pFillInfo, int32_t numOfRows, TSKEY endKey) {
if (pFillInfo->type == TSDB_FILL_NONE) {
return;
}
pFillInfo->end = endKey;
if (!FILL_IS_ASC_FILL(pFillInfo)) {
pFillInfo->end = taosTimeTruncate(endKey, &pFillInfo->interval, pFillInfo->interval.precision);
}
pFillInfo->index = 0;
pFillInfo->numOfRows = numOfRows;
}
void taosFillSetInputDataBlock(SFillInfo* pFillInfo, const SSDataBlock* pInput) {
pFillInfo->pSrcBlock = (SSDataBlock*)pInput;
}
bool taosFillHasMoreResults(SFillInfo* pFillInfo) {
int32_t remain = taosNumOfRemainRows(pFillInfo);
if (remain > 0) {
return true;
}
if (pFillInfo->numOfTotal > 0 && (((pFillInfo->end > pFillInfo->start) && FILL_IS_ASC_FILL(pFillInfo)) ||
(pFillInfo->end < pFillInfo->start && !FILL_IS_ASC_FILL(pFillInfo)))) {
return getNumOfResultsAfterFillGap(pFillInfo, pFillInfo->end, 4096) > 0;
}
return false;
}
int64_t getNumOfResultsAfterFillGap(SFillInfo* pFillInfo, TSKEY ekey, int32_t maxNumOfRows) {
SColumnInfoData* pCol = taosArrayGet(pFillInfo->pSrcBlock->pDataBlock, 0);
int64_t* tsList = (int64_t*)pCol->pData;
int32_t numOfRows = taosNumOfRemainRows(pFillInfo);
TSKEY ekey1 = ekey;
if (!FILL_IS_ASC_FILL(pFillInfo)) {
pFillInfo->end = taosTimeTruncate(ekey, &pFillInfo->interval, pFillInfo->interval.precision);
}
int64_t numOfRes = -1;
if (numOfRows > 0) { // still fill gap within current data block, not generating data after the result set.
TSKEY lastKey = tsList[pFillInfo->numOfRows - 1];
numOfRes = taosTimeCountInterval(lastKey, pFillInfo->currentKey, pFillInfo->interval.sliding,
pFillInfo->interval.slidingUnit, pFillInfo->interval.precision);
numOfRes += 1;
assert(numOfRes >= numOfRows);
} else { // reach the end of data
if ((ekey1 < pFillInfo->currentKey && FILL_IS_ASC_FILL(pFillInfo)) ||
(ekey1 > pFillInfo->currentKey && !FILL_IS_ASC_FILL(pFillInfo))) {
return 0;
}
numOfRes = taosTimeCountInterval(ekey1, pFillInfo->currentKey, pFillInfo->interval.sliding,
pFillInfo->interval.slidingUnit, pFillInfo->interval.precision);
numOfRes += 1;
}
return (numOfRes > maxNumOfRows) ? maxNumOfRows : numOfRes;
}
int32_t taosGetLinearInterpolationVal(SPoint* point, int32_t outputType, SPoint* point1, SPoint* point2,
int32_t inputType) {
double v1 = -1, v2 = -1;
GET_TYPED_DATA(v1, double, inputType, point1->val);
GET_TYPED_DATA(v2, double, inputType, point2->val);
double r = DO_INTERPOLATION(v1, v2, point1->key, point2->key, point->key);
SET_TYPED_DATA(point->val, outputType, r);
return TSDB_CODE_SUCCESS;
}
int64_t taosFillResultDataBlock(SFillInfo* pFillInfo, SSDataBlock* p, int32_t capacity) {
int32_t remain = taosNumOfRemainRows(pFillInfo);
int64_t numOfRes = getNumOfResultsAfterFillGap(pFillInfo, pFillInfo->end, capacity);
assert(numOfRes <= capacity);
// no data existed for fill operation now, append result according to the fill strategy
if (remain == 0) {
appendFilledResult(pFillInfo, p, numOfRes);
} else {
fillResultImpl(pFillInfo, p, (int32_t)numOfRes);
assert(numOfRes == pFillInfo->numOfCurrent);
}
// qDebug("fill:%p, generated fill result, src block:%d, index:%d, brange:%"PRId64"-%"PRId64", currentKey:%"PRId64",
// current:%d, total:%d, %p",
// pFillInfo, pFillInfo->numOfRows, pFillInfo->index, pFillInfo->start, pFillInfo->end, pFillInfo->currentKey,
// pFillInfo->numOfCurrent,
// pFillInfo->numOfTotal, pFillInfo->handle);
return numOfRes;
}
int64_t getFillInfoStart(struct SFillInfo* pFillInfo) { return pFillInfo->start; }
SFillColInfo* createFillColInfo(SExprInfo* pExpr, int32_t numOfOutput, const struct SNodeListNode* pValNode) {
SFillColInfo* pFillCol = taosMemoryCalloc(numOfOutput, sizeof(SFillColInfo));
if (pFillCol == NULL) {
return NULL;
}
size_t len = (pValNode != NULL) ? LIST_LENGTH(pValNode->pNodeList) : 0;
for (int32_t i = 0; i < numOfOutput; ++i) {
SExprInfo* pExprInfo = &pExpr[i];
pFillCol[i].pExpr = pExprInfo;
pFillCol[i].tagIndex = -2;
// todo refactor
if (len > 0) {
// if the user specified value is less than the column, alway use the last one as the fill value
int32_t index = (i >= len) ? (len - 1) : i;
SValueNode* pv = (SValueNode*)nodesListGetNode(pValNode->pNodeList, index);
nodesValueNodeToVariant(pv, &pFillCol[i].fillVal);
}
if (pExprInfo->base.numOfParams > 0) {
pFillCol[i].flag = pExprInfo->base.pParam[0].pCol->flag; // always be the normal column for table query
}
}
return pFillCol;
}
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