infiniflow=> select * from t1;
 c1 
----
  3
  5
  3
  5
  3
  5
(6 rows)

curl --request DELETE --url localhost:23820/databases/default/tables/t1/docs --header 'accept: application/json' --header 'content-type: application/json' --data '    
{                                
    "filter": "c1  = 3"
} '
{"delete_row_count":3,"error_code":0}

infiniflow=> select * from t1;
 c1 
----
  5
  5
  5
(3 rows)