用php显示给定递归查询的树结构输出

我必须以树格式显示此pgsql查询的输出

WITH RECURSIVE SYSTEM_PARTS("PART","PART_NUM","NODE_ID","PARENT_ID")
            AS
            (
                select p."PART",p."PART_NUM",hd."NODE_ID",hd."PARENT_ID" from relma_hierarchy_data hd
                INNER JOIN relma_part p on p."PART_NUM"=hd."FK_ID"
                where hd."HIERARCHY_ID"=2 and hd."NODE_ID"=16515 and hd."PARENT_ID"=hd."NODE_ID"

                UNION

                select p."PART",p."PART_NUM",hd."NODE_ID",hd."PARENT_ID" from relma_hierarchy_data hd
                INNER JOIN relma_part p on p."PART_NUM"=hd."FK_ID"
                , SYSTEM_PARTS sp
                where hd."HIERARCHY_ID"=2 and  sp."NODE_ID"=hd."PARENT_ID" AND hd."NODE_ID"<>hd."PARENT_ID"

            )
        select * from SYSTEM_PARTS');

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1如果这是LOINC数据，则节点\u ID=树根的父\u ID

2此外，路径_枚举树的“杜威十进制数”有助于显示问题，因为002.014.003是002.014的第三个子项