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fix(query): fix n-1 function if select column after function position 

result row is incorrect.

fix/TD-18040
This commit is contained in:
Ganlin Zhao 2022-08-01 14:15:16 +08:00
parent b51a58bde2
commit b0becf1ca9
3 changed files with 12 additions and 0 deletions
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1
include/libs/function/functionMgt.h
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@ -202,6 +202,7 @@ bool fmIsForbidStreamFunc(int32_t funcId);
bool fmIsIntervalInterpoFunc(int32_t funcId);
bool fmIsInterpFunc(int32_t funcId);
bool fmIsLastRowFunc(int32_t funcId);
bool fmIsSelectValueFunc(int32_t funcId);
bool fmIsSystemInfoFunc(int32_t funcId);
bool fmIsImplicitTsFunc(int32_t funcId);
bool fmIsClientPseudoColumnFunc(int32_t funcId);

4
source/libs/executor/src/executorimpl.c
View File

@ -672,6 +672,10 @@ int32_t projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBloc
numOfRows = pfCtx->fpSet.process(pfCtx);
} else if (fmIsAggFunc(pfCtx->functionId)) {
// diff/derivative selective value should be set during function execution
if (fmIsSelectValueFunc(pfCtx->functionId)) {
continue;
}
// _group_key function for "partition by tbname" + csum(col_name) query
SColumnInfoData* pOutput = taosArrayGet(pResult->pDataBlock, outputSlotId);
int32_t slotId = pfCtx->param[0].pCol->slotId;

7
source/libs/function/src/functionMgt.c
View File

@ -221,6 +221,13 @@ bool fmIsLastRowFunc(int32_t funcId) {
return FUNCTION_TYPE_LAST_ROW == funcMgtBuiltins[funcId].type;
}
bool fmIsSelectValueFunc(int32_t funcId) {
if (funcId < 0 || funcId >= funcMgtBuiltinsNum) {
return false;
}
return FUNCTION_TYPE_SELECT_VALUE == funcMgtBuiltins[funcId].type;
}
void fmFuncMgtDestroy() {
void* m = gFunMgtService.pFuncNameHashTable;
if (m != NULL && atomic_val_compare_exchange_ptr((void**)&gFunMgtService.pFuncNameHashTable, m, 0) == m) {