infiniflow=> select * from t1;
 c1 | c2 
----+----
  2 |  2
  3 |  3
  4 |  4
  5 |  5

curl --request PUT --url localhost:23820/databases/default/tables/t1/docs --header 'accept: application/json' --header 'content-type: application/json' --data '    
{
    "update": { "c2": 5 }, "filter": "c1  = 3"
} '

infiniflow=> select * from t1;
 c1 | c2 
----+----
  2 |  2
  4 |  4
  5 |  5
  3 |  5
(4 rows)