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[td-14493] support distinct.

This commit is contained in:
Haojun Liao 2022-04-06 23:00:32 +08:00
parent 7553344d9a
commit 50f0ab05ff
5 changed files with 27 additions and 30 deletions
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7
include/libs/function/function.h
View File

@ -110,11 +110,11 @@ typedef struct SFileBlockInfo {
#define FUNCTION_COV 38
typedef struct SResultRowEntryInfo {
int8_t hasResult:6; // result generated, not NULL value
// int8_t hasResult:6; // result generated, not NULL value
bool initialized:1; // output buffer has been initialized
bool complete:1; // query has completed
uint8_t isNullRes:1; // the result is null
uint8_t numOfRes:7; // num of output result in current buffer
uint8_t isNullRes:6; // the result is null
uint8_t numOfRes; // num of output result in current buffer
} SResultRowEntryInfo;
// determine the real data need to calculated the result
@ -157,7 +157,6 @@ typedef struct SResultDataInfo {
#define GET_RES_INFO(ctx) ((ctx)->resultInfo)
#define GET_ROWCELL_INTERBUF(_c) ((void*) ((char*)(_c) + sizeof(SResultRowEntryInfo)))
#define DATA_SET_FLAG ',' // to denote the output area has data, not null value
typedef struct SInputColumnInfoData {
int32_t totalRows; // total rows in current columnar data

13
source/libs/executor/src/executorimpl.c
View File

@ -1008,7 +1008,6 @@ void doApplyFunctions(SqlFunctionCtx* pCtx, STimeWindow* pWin, SColumnInfoData*
SScalarParam tw = {.numOfRows = 5, .columnData = pTimeWindowData};
pCtx[k].sfp.process(&tw, 1, &out);
pEntryInfo->numOfRes = 1;
pEntryInfo->hasResult = ',';
continue;
}
@ -3281,7 +3280,8 @@ void doFilter(const SNode* pFilterNode, SSDataBlock* pBlock) {
}
SFilterInfo* filter = NULL;
int32_t code = filterInitFromNode((SNode*)pFilterNode, &filter, 0);
int32_t code = filterInitFromNode((SNode*)pFilterNode, &filter, 0);
SFilterColumnParam param1 = {.numOfCols = pBlock->info.numOfCols, .pDataBlock = pBlock->pDataBlock};
code = filterSetDataFromSlotId(filter, &param1);
@ -3292,6 +3292,7 @@ void doFilter(const SNode* pFilterNode, SSDataBlock* pBlock) {
SSDataBlock* px = createOneDataBlock(pBlock);
blockDataEnsureCapacity(px, pBlock->info.rows);
// todo extract method
int32_t numOfRow = 0;
for (int32_t i = 0; i < pBlock->info.numOfCols; ++i) {
SColumnInfoData* pDst = taosArrayGet(px->pDataBlock, i);
@ -3303,7 +3304,11 @@ void doFilter(const SNode* pFilterNode, SSDataBlock* pBlock) {
continue;
}
colDataAppend(pDst, numOfRow, colDataGetData(pSrc, j), false);
if (colDataIsNull_s(pSrc, j)) {
colDataAppendNULL(pDst, numOfRow);
} else {
colDataAppend(pDst, numOfRow, colDataGetData(pSrc, j), false);
}
numOfRow += 1;
}
@ -3521,7 +3526,7 @@ static int32_t doCopyToSDataBlock(SDiskbasedBuf* pBuf, SGroupResInfo* pGroupResI
SResultRowEntryInfo* pEntryInfo = getResultCell(pRow, j, rowCellOffset);
char* in = GET_ROWCELL_INTERBUF(pEntryInfo);
colDataAppend(pColInfoData, nrows, in, pEntryInfo->numOfRes == 0);
colDataAppend(pColInfoData, nrows, in, pEntryInfo->isNullRes);
}
releaseBufPage(pBuf, page);

25
source/libs/executor/src/groupoperator.c
View File

@ -106,7 +106,7 @@ static bool groupKeyCompare(SGroupbyOperatorInfo* pInfo, SSDataBlock* pBlock, in
return true;
}
static void recordGroupKeys(SGroupbyOperatorInfo* pInfo, SSDataBlock* pBlock, int32_t rowIndex, int32_t numOfGroupCols) {
static void recordNewGroupKeys(SGroupbyOperatorInfo* pInfo, SSDataBlock* pBlock, int32_t rowIndex, int32_t numOfGroupCols) {
SColumnDataAgg* pColAgg = NULL;
for (int32_t i = 0; i < numOfGroupCols; ++i) {
@ -131,7 +131,7 @@ static void recordGroupKeys(SGroupbyOperatorInfo* pInfo, SSDataBlock* pBlock, in
}
}
static int32_t generatedHashKey(void* pKey, int32_t* length, SArray* pGroupColVals) {
static int32_t buildGroupValKey(void* pKey, int32_t* length, SArray* pGroupColVals) {
ASSERT(pKey != NULL);
size_t numOfGroupCols = taosArrayGetSize(pGroupColVals);
@ -170,11 +170,12 @@ static void doAssignGroupKeys(SqlFunctionCtx* pCtx, int32_t numOfOutput, int32_t
char* dest = GET_ROWCELL_INTERBUF(pEntryInfo);
char* data = colDataGetData(pColInfoData, rowIndex);
// set result exists, todo refactor
memcpy(dest, data, pColInfoData->info.bytes);
pEntryInfo->hasResult = DATA_SET_FLAG;
pEntryInfo->numOfRes = 1;
} else { // it is a NULL value
pEntryInfo->isNullRes = 1;
}
pEntryInfo->numOfRes = 1;
}
}
}
@ -197,7 +198,7 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SSDataBlock* pBlock) {
for (int32_t j = 0; j < pBlock->info.rows; ++j) {
// Compare with the previous row of this column, and do not set the output buffer again if they are identical.
if (!pInfo->isInit) {
recordGroupKeys(pInfo, pBlock, j, numOfGroupCols);
recordNewGroupKeys(pInfo, pBlock, j, numOfGroupCols);
pInfo->isInit = true;
num++;
continue;
@ -209,13 +210,14 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SSDataBlock* pBlock) {
continue;
}
// The first row of a new block does not belongs to the previous existed group
if (!equal && j == 0) {
num++;
recordGroupKeys(pInfo, pBlock, j, numOfGroupCols);
recordNewGroupKeys(pInfo, pBlock, j, numOfGroupCols);
continue;
}
/*int32_t ret = */ generatedHashKey(pInfo->keyBuf, &len, pInfo->pGroupColVals);
/*int32_t ret = */ buildGroupValKey(pInfo->keyBuf, &len, pInfo->pGroupColVals);
int32_t ret = setGroupResultOutputBuf_rv(&(pInfo->binfo), pOperator->numOfOutput, pInfo->keyBuf, TSDB_DATA_TYPE_VARCHAR, len, 0, pInfo->aggSup.pResultBuf, pTaskInfo, &pInfo->aggSup);
if (ret != TSDB_CODE_SUCCESS) { // null data, too many state code
longjmp(pTaskInfo->env, TSDB_CODE_QRY_APP_ERROR);
@ -226,12 +228,12 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SSDataBlock* pBlock) {
// assign the group keys or user input constant values if required
doAssignGroupKeys(pCtx, pOperator->numOfOutput, pBlock->info.rows, rowIndex);
recordGroupKeys(pInfo, pBlock, j, numOfGroupCols);
recordNewGroupKeys(pInfo, pBlock, j, numOfGroupCols);
num = 1;
}
if (num > 0) {
/*int32_t ret = */ generatedHashKey(pInfo->keyBuf, &len, pInfo->pGroupColVals);
/*int32_t ret = */ buildGroupValKey(pInfo->keyBuf, &len, pInfo->pGroupColVals);
int32_t ret =
setGroupResultOutputBuf_rv(&(pInfo->binfo), pOperator->numOfOutput, pInfo->keyBuf, TSDB_DATA_TYPE_VARCHAR, len,
0, pInfo->aggSup.pResultBuf, pTaskInfo, &pInfo->aggSup);
@ -294,8 +296,7 @@ static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator, bool* newgrou
initGroupResInfo(&pInfo->groupResInfo, &pInfo->binfo.resultRowInfo);
while(1) {
toSDatablock(&pInfo->groupResInfo, pInfo->aggSup.pResultBuf, pRes, pInfo->binfo.capacity,
pInfo->binfo.rowCellInfoOffset);
toSDatablock(&pInfo->groupResInfo, pInfo->aggSup.pResultBuf, pRes, pInfo->binfo.capacity, pInfo->binfo.rowCellInfoOffset);
doFilter(pInfo->pCondition, pRes);
bool hasRemain = hasRemainDataInCurrentGroup(&pInfo->groupResInfo);

10
source/libs/function/src/builtinsimpl.c
View File

@ -25,7 +25,6 @@
break; \
} \
(_info)->numOfRes = (res); \
(_info)->hasResult = DATA_SET_FLAG; \
} while (0)
typedef struct SSumRes {
@ -715,7 +714,6 @@ int32_t percentileFunction(SqlFunctionCtx *pCtx) {
}
SET_VAL(pResInfo, notNullElems, 1);
pResInfo->hasResult = DATA_SET_FLAG;
}
// TODO set the correct parameter.
@ -775,9 +773,7 @@ int32_t firstFunction(SqlFunctionCtx *pCtx) {
// DO_UPDATE_TAG_COLUMNS(pCtx, k);
// }
pResInfo->hasResult = DATA_SET_FLAG;
pResInfo->complete = true;
numOfElems++;
break;
}
@ -815,8 +811,6 @@ int32_t lastFunction(SqlFunctionCtx *pCtx) {
// TSKEY ts = pCtx->ptsList ? GET_TS_DATA(pCtx, i) : 0;
// DO_UPDATE_TAG_COLUMNS(pCtx, ts);
pResInfo->hasResult = DATA_SET_FLAG;
pResInfo->complete = true; // set query completed on this column
numOfElems++;
break;
@ -830,10 +824,8 @@ int32_t lastFunction(SqlFunctionCtx *pCtx) {
char* data = colDataGetData(pInputCol, i);
TSKEY ts = pCtx->ptsList ? GET_TS_DATA(pCtx, i) : 0;
if (pResInfo->hasResult != DATA_SET_FLAG || (*(TSKEY*)buf) < ts) {
pResInfo->hasResult = DATA_SET_FLAG;
if (pResInfo->numOfRes == 0 || (*(TSKEY*)buf) < ts) {
memcpy(buf, data, pCtx->inputBytes);
*(TSKEY*)buf = ts;
// DO_UPDATE_TAG_COLUMNS(pCtx, ts);
}

2
source/libs/function/src/taggfunction.c
View File

@ -208,7 +208,7 @@ int32_t getNumOfResult(SqlFunctionCtx* pCtx, int32_t num, SSDataBlock* pResBlock
SColumnInfoData* pCol = taosArrayGet(pResBlock->pDataBlock, i);
SResultRowEntryInfo *pResInfo = GET_RES_INFO(&pCtx[i]);
if (!pResInfo->hasResult) {
if (pResInfo->numOfRes == 0) {
for(int32_t j = 0; j < pResInfo->numOfRes; ++j) {
colDataAppend(pCol, j, NULL, true); // TODO add set null data api
}