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feat(query): add top/bottom function scalar version

This commit is contained in:
Ganlin Zhao 2022-07-18 14:47:53 +08:00
parent 7b5a96fa80
commit a80027736d
3 changed files with 33 additions and 0 deletions
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2
include/libs/scalar/scalar.h
View File

@ -117,6 +117,8 @@ int32_t diffScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam
int32_t stateCountScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
int32_t stateDurationScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
int32_t histogramScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
int32_t topScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
int32_t bottomScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
#ifdef __cplusplus
}

2
source/libs/function/src/builtins.c
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@ -2086,6 +2086,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.getEnvFunc = getTopBotFuncEnv,
.initFunc = topBotFunctionSetup,
.processFunc = topFunction,
.sprocessFunc = topScalarFunction,
.finalizeFunc = topBotFinalize,
.combineFunc = topCombine,
.pPartialFunc = "top",
@ -2100,6 +2101,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.getEnvFunc = getTopBotFuncEnv,
.initFunc = topBotFunctionSetup,
.processFunc = bottomFunction,
.sprocessFunc = bottomScalarFunction,
.finalizeFunc = topBotFinalize,
.combineFunc = bottomCombine,
.pPartialFunc = "bottom",

29
source/libs/scalar/src/sclfunc.c
View File

@ -2816,3 +2816,32 @@ int32_t histogramScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarP
pOutput->numOfRows = numOfBins;
return TSDB_CODE_SUCCESS;
}
int32_t selectScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
SColumnInfoData *pInputData = pInput->columnData;
SColumnInfoData *pOutputData = pOutput->columnData;
int32_t type = GET_PARAM_TYPE(pInput);
for (int32_t i = 0; i < pInput->numOfRows; ++i) {
if (colDataIsNull_s(pInputData, i)) {
colDataAppendNULL(pOutputData, 0);
continue;
}
char* data = colDataGetData(pInputData, i);
colDataAppend(pOutputData, i, data, false);
}
pOutput->numOfRows = 1;
return TSDB_CODE_SUCCESS;
}
int32_t topScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
return selectScalarFunction(pInput, inputNum, pOutput);
}
int32_t bottomScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
return selectScalarFunction(pInput, inputNum, pOutput);
}