学习:row_to_json 函数
需求场景:
需要选择某jsonb字段中某几列重新组成新的jsonb类型,插入到某一个表中
insert into temp1(neid,oid,name,time,values) select neId,oid,name,time,row_to_json((SELECT aa FROM (SELECT (data->'values'->>'001_001')::bigint as "001_001", (data->'values'->>'001_002')::bigint as "001_002", (data->'values'->>'001_003')::bigint as "001_003", (data->'values'->>'001_004')::bigint as "001_004", (data->'values'->>'001_005')::bigint as "001_005", (data->'values'->>'001_006')::bigint as "001_006", (data->'values'->>'001_007')::bigint as "001_007", (data->'values'->>'001_008')::bigint as "001_008", (data->'values'->>'001_009')::bigint as "001_009", (data->'values'->>'001_010')::bigint as "001_010", (data->'values'->>'001_011')::bigint as "001_011", (data->'values'->>'001_012')::bigint as "001_012" )aa)) AS values from PM_001 where (neId in (1,2)) and (time>='2022-01-01'::timestamp with time zone) and (time<='2022-01-26'::timestamp with time zone) order by neId,time
选择某个表中的字段重新插入到某个表中
insert into pm_001(neid,dgid,oid,period,name,slot,port,type,time,data) select neid,dgid,oid,period,name,slot,port,type,time,data from pm_001