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Merge pull request #13604 from taosdata/feat/split_enhance 

enh(query): add spread function distributed splitting
This commit is contained in:
Ganlin Zhao 2022-06-08 17:15:54 +08:00 committed by GitHub
parent 31d381de2a e4216bbc87
commit 7504aa7acc
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 112 additions and 8 deletions
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2
include/libs/function/functionMgt.h
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@ -125,6 +125,8 @@ typedef enum EFunctionType {
// distributed splitting functions
FUNCTION_TYPE_APERCENTILE_PARTIAL,
FUNCTION_TYPE_APERCENTILE_MERGE,
FUNCTION_TYPE_SPREAD_PARTIAL,
FUNCTION_TYPE_SPREAD_MERGE,
// user defined funcion
FUNCTION_TYPE_UDF = 10000

3
source/libs/function/inc/builtinsimpl.h
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@ -102,10 +102,13 @@ int32_t topFunction(SqlFunctionCtx *pCtx);
int32_t bottomFunction(SqlFunctionCtx *pCtx);
int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
int32_t getSpreadInfoSize();
bool getSpreadFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
bool spreadFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
int32_t spreadFunction(SqlFunctionCtx* pCtx);
int32_t spreadFunctionMerge(SqlFunctionCtx* pCtx);
int32_t spreadFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
int32_t spreadPartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
bool getElapsedFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
bool elapsedFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);

53
source/libs/function/src/builtins.c
View File

@ -317,7 +317,6 @@ static int32_t translateApercentileMerge(SFunctionNode* pFunc, char* pErrBuf, in
return translateApercentileImpl(pFunc, pErrBuf, len, false);
}
static int32_t translateTbnameColumn(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
// pseudo column do not need to check parameters
pFunc->node.resType =
@ -378,6 +377,34 @@ static int32_t translateSpread(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
return TSDB_CODE_SUCCESS;
}
static int32_t translateSpreadImpl(SFunctionNode* pFunc, char* pErrBuf, int32_t len, bool isPartial) {
if (1 != LIST_LENGTH(pFunc->pParameterList)) {
return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
}
uint8_t paraType = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
if (isPartial) {
if (!IS_NUMERIC_TYPE(paraType) && TSDB_DATA_TYPE_TIMESTAMP != paraType) {
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
}
pFunc->node.resType = (SDataType){.bytes = getSpreadInfoSize() + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY};
} else {
if (TSDB_DATA_TYPE_BINARY != paraType) {
return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
}
pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_DOUBLE].bytes, .type = TSDB_DATA_TYPE_DOUBLE};
}
return TSDB_CODE_SUCCESS;
}
static int32_t translateSpreadPartial(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
return translateSpreadImpl(pFunc, pErrBuf, len, true);
}
static int32_t translateSpreadMerge(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
return translateSpreadImpl(pFunc, pErrBuf, len, false);
}
static int32_t translateElapsed(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
int32_t numOfParams = LIST_LENGTH(pFunc->pParameterList);
if (1 != numOfParams && 2 != numOfParams) {
@ -1277,6 +1304,30 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.getEnvFunc = getSpreadFuncEnv,
.initFunc = spreadFunctionSetup,
.processFunc = spreadFunction,
.finalizeFunc = spreadFinalize,
.pPartialFunc = "_spread_partial",
.pMergeFunc = "_spread_merge"
},
{
.name = "_spread_partial",
.type = FUNCTION_TYPE_SPREAD_PARTIAL,
.classification = FUNC_MGT_AGG_FUNC,
.translateFunc = translateSpreadPartial,
.dataRequiredFunc = statisDataRequired,
.getEnvFunc = getSpreadFuncEnv,
.initFunc = spreadFunctionSetup,
.processFunc = spreadFunction,
.finalizeFunc = spreadPartialFinalize
},
{
.name = "_spread_merge",
.type = FUNCTION_TYPE_SPREAD_MERGE,
.classification = FUNC_MGT_AGG_FUNC,
.translateFunc = translateSpreadMerge,
.dataRequiredFunc = statisDataRequired,
.getEnvFunc = getSpreadFuncEnv,
.initFunc = spreadFunctionSetup,
.processFunc = spreadFunctionMerge,
.finalizeFunc = spreadFinalize
},
{

62
source/libs/function/src/builtinsimpl.c
View File

@ -2190,19 +2190,19 @@ int32_t apercentilePartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
int32_t bytesHist = (int32_t)(sizeof(SAPercentileInfo) + sizeof(SHistogramInfo) + sizeof(SHistBin) * (MAX_HISTOGRAM_BIN + 1));
int32_t bytesDigest = (int32_t)(sizeof(SAPercentileInfo) + TDIGEST_SIZE(COMPRESSION));
int32_t resultBytes = TMAX(bytesHist, bytesDigest);
char *tmp = taosMemoryCalloc(resultBytes + VARSTR_HEADER_SIZE, sizeof(char));
char *res = taosMemoryCalloc(resultBytes + VARSTR_HEADER_SIZE, sizeof(char));
if (pInfo->algo == APERCT_ALGO_TDIGEST) {
if (pInfo->pTDigest->size > 0) {
memcpy(varDataVal(tmp), pInfo, resultBytes);
varDataSetLen(tmp, resultBytes);
memcpy(varDataVal(res), pInfo, resultBytes);
varDataSetLen(res, resultBytes);
} else {
return TSDB_CODE_SUCCESS;
}
} else {
if (pInfo->pHisto->numOfElems > 0) {
memcpy(varDataVal(tmp), pInfo, resultBytes);
varDataSetLen(tmp, resultBytes);
memcpy(varDataVal(res), pInfo, resultBytes);
varDataSetLen(res, resultBytes);
} else {
return TSDB_CODE_SUCCESS;
}
@ -2211,9 +2211,9 @@ int32_t apercentilePartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
int32_t slotId = pCtx->pExpr->base.resSchema.slotId;
SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
colDataAppend(pCol, pBlock->info.rows, tmp, false);
colDataAppend(pCol, pBlock->info.rows, res, false);
taosMemoryFree(tmp);
taosMemoryFree(res);
return pResInfo->numOfRes;
}
@ -2868,6 +2868,10 @@ bool getSpreadFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) {
return true;
}
int32_t getSpreadInfoSize() {
return (int32_t)sizeof(SSpreadInfo);
}
bool spreadFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo) {
if (!functionSetup(pCtx, pResultInfo)) {
return false;
@ -2953,6 +2957,32 @@ _spread_over:
return TSDB_CODE_SUCCESS;
}
int32_t spreadFunctionMerge(SqlFunctionCtx *pCtx) {
SInputColumnInfoData* pInput = &pCtx->input;
SColumnInfoData* pCol = pInput->pData[0];
ASSERT(pCol->info.type == TSDB_DATA_TYPE_BINARY);
SSpreadInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
SSpreadInfo* pInputInfo;
int32_t start = pInput->startRowIndex;
char* data = colDataGetData(pCol, start);
pInputInfo = (SSpreadInfo *)varDataVal(data);
pInfo->hasResult = pInputInfo->hasResult;
if (pInputInfo->max > pInfo->max) {
pInfo->max = pInputInfo->max;
}
if (pInputInfo->min < pInfo->min) {
pInfo->min = pInputInfo->min;
}
SET_VAL(GET_RES_INFO(pCtx), 1, 1);
return TSDB_CODE_SUCCESS;
}
int32_t spreadFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
SSpreadInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
if (pInfo->hasResult == true) {
@ -2961,6 +2991,24 @@ int32_t spreadFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
return functionFinalize(pCtx, pBlock);
}
int32_t spreadPartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
SSpreadInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
int32_t resultBytes = (int32_t)sizeof(SSpreadInfo);
char *res = taosMemoryCalloc(resultBytes + VARSTR_HEADER_SIZE, sizeof(char));
memcpy(varDataVal(res), pInfo, resultBytes);
varDataSetLen(res, resultBytes);
int32_t slotId = pCtx->pExpr->base.resSchema.slotId;
SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
colDataAppend(pCol, pBlock->info.rows, res, false);
taosMemoryFree(res);
return pResInfo->numOfRes;
}
bool getElapsedFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) {
pEnv->calcMemSize = sizeof(SElapsedInfo);
return true;