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skip empty result optimization

This commit is contained in:
factosea 2024-01-15 16:45:51 +08:00
parent 2c0dd3db03
commit a8efcfcce9
1 changed files with 4 additions and 4 deletions
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8
source/libs/parser/src/parTranslater.c
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@ -4405,10 +4405,10 @@ static int32_t translateWhere(STranslateContext* pCxt, SSelectStmt* pSelect) {
if (TSDB_CODE_SUCCESS == code) { if (TSDB_CODE_SUCCESS == code) {
code = getQueryTimeRange(pCxt, pSelect->pWhere, &pSelect->timeRange); code = getQueryTimeRange(pCxt, pSelect->pWhere, &pSelect->timeRange);
} }
if (TSDB_CODE_SUCCESS == code && pSelect->timeRange.skey > pSelect->timeRange.ekey // skip optimization, because need result meta info.(tbname，colname and so on)
&& (pSelect->pGroupByList == NULL || pSelect->pGroupByList->length == 0)) { // if (TSDB_CODE_SUCCESS == code && pSelect->timeRange.skey > pSelect->timeRange.ekey) {
pSelect->isEmptyResult = true; // pSelect->isEmptyResult = true;
} // }
if (pSelect->pWhere != NULL) { if (pSelect->pWhere != NULL) {
setTableVgroupsFromEqualTbnameCond(pCxt, pSelect); setTableVgroupsFromEqualTbnameCond(pCxt, pSelect);
} }