[branch-2.0-pick] Picks "[fix](planner) Fix delete statement on MOR unique table #28968"

[bobhan1]

Proposed changes

picks #28968

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...

[bobhan1]

run buildall

[doris-robot]

(From new machine)TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 50.66 seconds
stream load tsv: 562 seconds loaded 74807831229 Bytes, about 126 MB/s
stream load json: 20 seconds loaded 2358488459 Bytes, about 112 MB/s
stream load orc: 65 seconds loaded 1101869774 Bytes, about 16 MB/s
stream load parquet: 32 seconds loaded 861443392 Bytes, about 25 MB/s
insert into select: 29.8 seconds inserted 10000000 Rows, about 335K ops/s
storage size: 17167974824 Bytes