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enh(query): add derivative function selectivity 

TD-17659
This commit is contained in:
Ganlin Zhao 2022-07-25 16:04:28 +08:00
parent 8537449f90
commit e8da4f429c
2 changed files with 13 additions and 1 deletions
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2
source/libs/function/src/builtins.c
View File

@ -2220,7 +2220,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
{
.name = "derivative",
.type = FUNCTION_TYPE_DERIVATIVE,
.classification = FUNC_MGT_INDEFINITE_ROWS_FUNC | FUNC_MGT_TIMELINE_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC,
.classification = FUNC_MGT_INDEFINITE_ROWS_FUNC | FUNC_MGT_SELECT_FUNC | FUNC_MGT_TIMELINE_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC,
.translateFunc = translateDerivative,
.getEnvFunc = getDerivativeFuncEnv,
.initFunc = derivativeFuncSetup,

12
source/libs/function/src/builtinsimpl.c
View File

@ -5767,6 +5767,12 @@ int32_t derivativeFunction(SqlFunctionCtx* pCtx) {
if (pTsOutput != NULL) {
colDataAppendInt64(pTsOutput, pos, &tsList[i]);
}
// handle selectivity
if (pCtx->subsidiaries.num > 0) {
appendSelectivityValue(pCtx, i, pos);
}
numOfElems++;
}
}
@ -5799,6 +5805,12 @@ int32_t derivativeFunction(SqlFunctionCtx* pCtx) {
if (pTsOutput != NULL) {
colDataAppendInt64(pTsOutput, pos, &pDerivInfo->prevTs);
}
// handle selectivity
if (pCtx->subsidiaries.num > 0) {
appendSelectivityValue(pCtx, i, pos);
}
numOfElems++;
}
}