mrhhsg opened a new pull request, #10821:
URL: https://github.com/apache/doris/pull/10821
# Proposed changes
Issue Number: close #xxx
## Problem Summary:
Test on ssb-flat(100g) with SQL:
```sql
SELECT
C_CITY,
S_CITY,
(LO_ORDERDATE DIV 10000) AS YEAR,
SUM(LO_REVENUE) AS revenue
FROM
lineorder_flat
GROUP BY
C_CITY, S_CITY, YEAR
ORDER BY
YEAR ASC, revenue DESC limit 20;
```
master: 34 sec
agg_with_phmap: 28 sec
## Checklist(Required)
1. Does it affect the original behavior: (Yes/No/I Don't know)
2. Has unit tests been added: (Yes/No/No Need)
3. Has document been added or modified: (Yes/No/No Need)
4. Does it need to update dependencies: (Yes/No)
5. Are there any changes that cannot be rolled back: (Yes/No)
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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