[GitHub] [doris] sohardforaname opened a new pull request, #22563: [Fix](planner)fix delete stmt contains where but delete all data.

[via GitHub]

sohardforaname opened a new pull request, #22563:
URL: https://github.com/apache/doris/pull/22563

   ## Proposed changes
   
   Issue Number: close #xxx
   
   <!--Describe your changes.-->
   
   ```sql
   
   CREATE TABLE test1 (
       x varchar NOT NULL,
       id varchar NOT NULL
   )
   ENGINE=OLAP
   UNIQUE KEY(`x`)COMMENT "OLAP"
   DISTRIBUTED BY HASH(`x`) 
   BUCKETS 96
   PROPERTIES (
       "replication_num" = "1",
       "enable_unique_key_merge_on_write" = "true"
   ); 
   
   insert into test1 values("a", "a"), ("bb", "bb"), ("ccc", "ccc"); 
   
   delete from test where length(x) = 2
   ```
   after delete, the table will be empty because the expression is analyzed 
when build insert stmt. We fix it by copying the expression and analyze the 
copy.
   
   ## Further comments
   
   If this is a relatively large or complex change, kick off the discussion at 
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you 
chose the solution you did and what alternatives you considered, etc...
   
   


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