[fix](planner) fix hll_union plan: Invalid Aggregate Operator: hll_union

[zenoyang]

Proposed changes

Issue Number: close #xxx
When using hll_union aggregate function, PREAGGREGATION is always OFF and Rollup cannot be hit.

Problem summary

reproduce:

create table test.test_hll(
    dt date,
    id int,
    name char(10),
    province char(10),
    os char(10),
    pv hll hll_union
)
Aggregate KEY (dt,id,name,province,os)
distributed by hash(id) buckets 10
PROPERTIES(
    "replication_num" = "1",
    "in_memory"="false"
);

explain select dt, hll_union(pv) from test_hll group by dt;

output: TABLE: test_hll(null), PREAGGREGATION: OFF. Reason: Invalid Aggregate Operator: hll_union

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 (If Yes, please explain WHY)
   • No

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[hello-stephen]

TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 35.05 seconds
load time: 424 seconds
storage size: 17123356265 Bytes
https://doris-community-test-1308700295.cos.ap-hongkong.myqcloud.com/tmp/20221208085427_clickbench_pr_60102.html

[morningman]

LGTM