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Merge pull request #21419 from taosdata/fix/TD-24304 

fix: last(tag) report error issue
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dapan1121 2023-05-23 08:55:22 +08:00 committed by GitHub
parent 9e73a69316 840eb21825
commit 0bb468af7b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 0 deletions
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8
source/libs/planner/src/planOptimizer.c
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@ -2195,6 +2195,13 @@ static bool lastRowScanOptMayBeOptimized(SLogicNode* pNode) {
FOREACH(pFunc, ((SAggLogicNode*)pNode)->pAggFuncs) {
SFunctionNode* pAggFunc = (SFunctionNode*)pFunc;
if (FUNCTION_TYPE_LAST == pAggFunc->funcType) {
SNode* pPar = nodesListGetNode(pAggFunc->pParameterList, 0);
if (QUERY_NODE_COLUMN == nodeType(pPar)) {
SColumnNode* pCol = (SColumnNode*)pPar;
if (pCol->colType == COLUMN_TYPE_TAG) {
return false;
}
}
if (hasSelectFunc || QUERY_NODE_VALUE == nodeType(nodesListGetNode(pAggFunc->pParameterList, 0))) {
return false;
}
@ -2295,6 +2302,7 @@ static int32_t lastRowScanOptimize(SOptimizeContext* pCxt, SLogicSubplan* pLogic
if (NULL != cxt.pLastCols) {
cxt.doAgg = false;
lastRowScanOptSetLastTargets(pScan->pScanCols, cxt.pLastCols, true);
nodesWalkExprs(pScan->pScanPseudoCols, lastRowScanOptSetColDataType, &cxt);
lastRowScanOptSetLastTargets(pScan->node.pTargets, cxt.pLastCols, false);
nodesClearList(cxt.pLastCols);
}