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fix: optimizing to do tag scan when tbname exists

This commit is contained in:
shenglian zhou 2022-07-19 19:13:15 +08:00
parent ea102128ba
commit 4901b59530
1 changed files with 18 additions and 1 deletions
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19
source/libs/planner/src/planOptimizer.c
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@ -1378,6 +1378,22 @@ static bool planOptNodeListHasCol(SNodeList* pKeys) {
return hasCol;
}
static EDealRes partTagsOptHasTbname(SNode* pNode, void* pContext) {
if (QUERY_NODE_COLUMN == nodeType(pNode)) {
if (COLUMN_TYPE_TBNAME == ((SColumnNode*)pNode)->colType) {
*(bool*)pContext = true;
return DEAL_RES_END;
}
}
return DEAL_RES_CONTINUE;
}
static bool planOptNodeListHasTbname(SNodeList* pKeys) {
bool hasCol = false;
nodesWalkExprs(pKeys, partTagsOptHasTbname, &hasCol);
return hasCol;
}
static bool partTagsIsOptimizableNode(SLogicNode* pNode) {
return ((QUERY_NODE_LOGIC_PLAN_PARTITION == nodeType(pNode) ||
(QUERY_NODE_LOGIC_PLAN_AGG == nodeType(pNode) && NULL != ((SAggLogicNode*)pNode)->pGroupKeys &&
@ -2129,7 +2145,8 @@ static bool tagScanMayBeOptimized(SLogicNode* pNode) {
}
SAggLogicNode* pAgg = (SAggLogicNode*)(pNode->pParent);
if (NULL == pAgg->pGroupKeys || NULL != pAgg->pAggFuncs || planOptNodeListHasCol(pAgg->pGroupKeys)) {
if (NULL == pAgg->pGroupKeys || NULL != pAgg->pAggFuncs ||
planOptNodeListHasCol(pAgg->pGroupKeys) || !planOptNodeListHasTbname(pAgg->pGroupKeys)) {
return false;
}