iwanttobepowerful commented on issue #31308:
URL: https://github.com/apache/doris/issues/31308#issuecomment-1999150927

   `
   CREATE   TABLE  test_varchar (
      str varchar(100),
      len  int
   )
   DUPLICATE KEY(str)
   DISTRIBUTED BY HASH(str) BUCKETS 10
   PROPERTIES("replication_num" = "1");
   
   insert into test_varchar select 'abcdef',100;
   insert into test_varchar select 'test',256;
   
   set enable_fallback_to_original_planner = false;
   
   select  case when len in(select len from test_varchar  ) then 1 else 1 end 
c1  from test_varchar t2  group by len;
   `
   
   ERROR 1105 (HY000): errCode = 2, detailMessage = Only support subquery in 
binary predicate in case statement.
   
   
   
   `
   select 
/*+SET_VAR(disable_nereids_rules='TRANSPOSE_LOGICAL_SEMI_JOIN_AGG_PROJECT, 
TRANSPOSE_LOGICAL_SEMI_JOIN_AGG')*/  case when len in(select len from 
test_varchar  ) then 1 else 1 end c1  from test_varchar t2  group by len;
   `
   can get right result


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