N1QL choose the latest timestamp records for the conditions - couchbase

Question

Hi I have an application that runs the below N1QL
please observe the letting clause , for the lowest value of the env we are picking other details.
with a change in the application we are getting multiple records for this criteria and we need to pick the one with max(t5.createdTs) . That is we need min(env) record with max time stamp.
How do i change this N1QL
I tried using order by before letting it gave me error
WITH ct3 AS ( SELECT m[1].appName as name , m[1].uuid as id ,m[1].description ,m[1].env , m[1].productStatus ,m[1].fourthParty as dcrFlag,
m[1].createdTs
FROM api_external AS t4
JOIN api_external AS t5 ON t4.uuid = t5.data.partnerAppId
WHERE t4.type = "partnerApp"
AND t4.data.companyId = '70a149da27cc425da86cba890bf5b143'
AND t5.type = "integration"
AND t5.data.partnerAppId IS NOT NULL
GROUP BY t4.uuid
LETTING m = MIN([t5.data.env, {t4.uuid, t4.data.appName, t4.data.description,
t5.data.env, t5.data.productStatus , t4.data.fourthParty , t4.uuid,t5.createdTs }]) )
select ct3.name ,
ct3.id ,
ct3.description ,
ct3.env ,
ct3.dcrFlag,
ct3.createdTs,
(select api_external.data.displayName as productName , uuid as productId
from api_external USE KEYS (ARRAY "product::" || v FOR v IN OBJECT_NAMES(ct3.productStatus) END) ) as ProductDetails
from ct3

Answer 1

WITH ct3 AS ( SELECT m[2].*
FROM api_external AS t4
JOIN api_external AS t5 ON t4.uuid = t5.data.partnerAppId
WHERE t4.type = "partnerApp"
AND t4.data.companyId = '70a149da27cc425da86cba890bf5b143'
AND t5.type = "integration"
AND t5.data.partnerAppId IS NOT NULL
GROUP BY t4.uuid
LETTING m = MIN([t5.data.env, -STR_TO_MILLIS(t5.createdTs), {"id": t4.uuid, "name": t4.data.appName, t4.data.description,
t5.data.env, t5.data.productStatus , "dcrFlag": t4.data.fourthParty , t4.uuid,t5.createdTs }]) )
SELECT c.*,
( SELECT p.data.displayName AS productName, uuid AS productId
FROM api_external AS p USE KEYS (ARRAY "product::" || v FOR v IN OBJECT_NAMES(c.productStatus) END)
) AS ProductDetails
FROM ct3 AS c;