Continuation token issue with grouping query

[sunil924]

Describe the bug How do we determine that all the grouping results are received and no need to make a query with a continuation token? https://vespatalk.slack.com/archives/C01QNBPPNT1/p1692267746709079

Expected behavior Once all the results are received grouping list should not have next continuation token in response.

Environment (please complete the following information): podman

Vespa version Include Vespa version(s) used. 8.137.25

[sunil924]

Edited the description to add the query.

[nehajatav]

If this is happening only for max(inf) which is the case for @sunil924 , does it mean the results are already exhaustive and continuation token doesn't mean anything in that case? [cc: @bratseth ]