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enh: the expression in project is pushed down to scan

This commit is contained in:
Xiaoyu Wang 2022-09-19 17:47:07 +08:00
parent 83fcf4fd8d
commit 1aa9624ea3
1 changed files with 12 additions and 4 deletions
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16
source/libs/planner/src/planSpliter.c
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@ -915,20 +915,28 @@ static int32_t stbSplSplitSortNode(SSplitContext* pCxt, SStableSplitInfo* pInfo)
}
static int32_t stbSplSplitScanNodeWithoutPartTags(SSplitContext* pCxt, SStableSplitInfo* pInfo) {
int32_t code = splCreateExchangeNodeForSubplan(pCxt, pInfo->pSubplan, pInfo->pSplitNode, SUBPLAN_TYPE_MERGE);
SLogicNode* pSplitNode = pInfo->pSplitNode;
if (NULL != pInfo->pSplitNode->pParent && QUERY_NODE_LOGIC_PLAN_PROJECT == nodeType(pInfo->pSplitNode->pParent)) {
pSplitNode = pInfo->pSplitNode->pParent;
}
int32_t code = splCreateExchangeNodeForSubplan(pCxt, pInfo->pSubplan, pSplitNode, SUBPLAN_TYPE_MERGE);
if (TSDB_CODE_SUCCESS == code) {
code = nodesListMakeStrictAppend(&pInfo->pSubplan->pChildren,
(SNode*)splCreateScanSubplan(pCxt, pInfo->pSplitNode, SPLIT_FLAG_STABLE_SPLIT));
(SNode*)splCreateScanSubplan(pCxt, pSplitNode, SPLIT_FLAG_STABLE_SPLIT));
}
++(pCxt->groupId);
return code;
}
static int32_t stbSplSplitScanNodeWithPartTags(SSplitContext* pCxt, SStableSplitInfo* pInfo) {
int32_t code = stbSplCreateMergeNode(pCxt, pInfo->pSubplan, pInfo->pSplitNode, NULL, pInfo->pSplitNode, true);
SLogicNode* pSplitNode = pInfo->pSplitNode;
if (NULL != pInfo->pSplitNode->pParent && QUERY_NODE_LOGIC_PLAN_PROJECT == nodeType(pInfo->pSplitNode->pParent)) {
pSplitNode = pInfo->pSplitNode->pParent;
}
int32_t code = stbSplCreateMergeNode(pCxt, pInfo->pSubplan, pSplitNode, NULL, pSplitNode, true);
if (TSDB_CODE_SUCCESS == code) {
code = nodesListMakeStrictAppend(&pInfo->pSubplan->pChildren,
(SNode*)splCreateScanSubplan(pCxt, pInfo->pSplitNode, SPLIT_FLAG_STABLE_SPLIT));
(SNode*)splCreateScanSubplan(pCxt, pSplitNode, SPLIT_FLAG_STABLE_SPLIT));
}
pInfo->pSubplan->subplanType = SUBPLAN_TYPE_MERGE;
++(pCxt->groupId);