First value in all line of a table

[geogou1973]

Hello,

I have the following table 

DATE	ITEM	PRICE	FirstSortedValue(PRICE,ITEM_ID)
01/09/2021	1420211	1,52	1,52
02/09/2021	1420211	1,52	1,52
03/09/2021	1420211	1,52	1,52
04/09/2021	1420211	1,52	1,52
05/09/2021	1420211	1,52	1,52
06/09/2021	1420211	1,52	1,52
07/09/2021	1420211	1,52	1,52
08/09/2021	1420211	1,52	1,52
09/09/2021	1420211	1,52	1,52
10/09/2021	1420211	1,52	1,52
11/09/2021	1420211	1,52	1,52
12/09/2021	1420211	1,52	1,52
13/09/2021	1420211	1,596	1,596

I want to have the first value by ITEM in all lines of the table.

When i write the expression FirstSortedValue(PRICE,ITEM_ID) in the last line that the price is different does not work to give me also the price 1,52 . How can i achieve this ?

Thank you in advanced.

[geogou1973]

I found the solution with the expression 

aggr(nodistinct FirstSortedValue(PRICE,Rank,1),ITEM_ID)

In the script i rank the lines by ITEM and DATE