在Postgres中将多个值合并到一个单元格中

我有一个数据集,可以包含多个具有相同索赔编号和不同名称的行:

   claim_id           name
    112               John Smith
    112               Tom Harris
    113               Randy Dugar

    claim_no          name
    112               John Smith, Tom Harris
    113               Randy Dugar

   with firstrun as(
   select distinct kia.claim_id as claim_id,  c.first_name ||' '  
   ||c.last_name as name
   from kia
   inner join
   claims c
   on kia.claim_id = c.claim_id


   )

   select distinct claim_id, substring((Select ',' || ' '|| fr.name as   text()]
   from firstrun fr
   for xml path('')), 2, 500)