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Merge pull request #15710 from taosdata/feature/3.0_query_optimize_wxy 

enh: last_row function scan in reverse order
This commit is contained in:
Xiaoyu Wang 2022-08-03 17:04:54 +08:00 committed by GitHub
parent 846ee63c88 c8c9bbdeb1
commit 25fd22c2ff
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 3 deletions
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6
source/libs/planner/src/planOptimizer.c
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@ -242,7 +242,7 @@ static int32_t scanPathOptGetScanOrder(SScanLogicNode* pScan, EScanOrder* pScanO
SFunctionNode* pFunc = (SFunctionNode*)pNode;
if (FUNCTION_TYPE_FIRST == pFunc->funcType) {
hasFirst = true;
} else if (FUNCTION_TYPE_LAST == pFunc->funcType) {
} else if (FUNCTION_TYPE_LAST == pFunc->funcType || FUNCTION_TYPE_LAST_ROW == pFunc->funcType) {
hasLast = true;
} else if (FUNCTION_TYPE_SELECT_VALUE != pFunc->funcType) {
otherFunc = true;
@ -436,8 +436,8 @@ static int32_t pushDownCondOptDealScan(SOptimizeContext* pCxt, SScanLogicNode* p
SNode* pPrimaryKeyCond = NULL;
SNode* pOtherCond = NULL;
int32_t code = filterPartitionCond(&pScan->node.pConditions, &pPrimaryKeyCond, &pScan->pTagIndexCond, &pScan->pTagCond,
&pOtherCond);
int32_t code = filterPartitionCond(&pScan->node.pConditions, &pPrimaryKeyCond, &pScan->pTagIndexCond,
&pScan->pTagCond, &pOtherCond);
if (TSDB_CODE_SUCCESS == code && NULL != pScan->pTagCond) {
code = pushDownCondOptRebuildTbanme(&pScan->pTagCond);
}