[feature](Nereids): infer distinct from SetOperator

[jackwener]

Proposed changes

Issue Number: close #xxx

Infer distinct from Distinct SetOperator, and put distinct above children to reduce data.

tpcds_sf100 q14:

before
100 rows in set (7.60 sec)

after
100 rows in set (6.80 sec)

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...

[jackwener]

run buildall

[jackwener]

run buildall

[hello-stephen]

TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 43.95 seconds
stream load tsv: 457 seconds loaded 74807831229 Bytes, about 156 MB/s
stream load json: 23 seconds loaded 2358488459 Bytes, about 97 MB/s
stream load orc: 57 seconds loaded 1101869774 Bytes, about 18 MB/s
stream load parquet: 28 seconds loaded 861443392 Bytes, about 29 MB/s
insert into select: 68.7 seconds inserted 10000000 Rows, about 145K ops/s
https://doris-community-test-1308700295.cos.ap-hongkong.myqcloud.com/tmp/20230627092034_clickbench_pr_168621.html

[jackwener]

run buildall

[jackwener]

run buildall

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.