postgresql - Group by id dependent less time at postgres sql -

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i have table structure @ postgres db :

id | item | name  | time 1  |    | shoes | 01 1  | b    | hat   | 02 2  | c    | shirt | 01 2  | d    | glove | 02

i need transfor table :

prev_item | item | name         | b    | hat c         | d    | glove

it's based on time, time less should prev_item each id

how sql ?

thx

use row_number & lag window function

select * ( select row_number()over(partition id order time desc) rn,        lag(item) over(partition id order time) prev_item,* yourtable ) rn = 1

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