Retriving last record

OpenSearch
1

I don’t know values of last record. And i want to retrive it. How can I‌ retrive it via opensearchpy?

2

What does the last record mean? You mean the oldest document order by time? If you just want to get the newest or oldest document, set the parameter size to 1 when executing the query with specified sorting, something like this:

GET index/_search
{
   "size":1,
   "sort":{...}
}