rahil-c commented on code in PR #9660:
URL: https://github.com/apache/iceberg/pull/9660#discussion_r1483788053
##########
open-api/rest-catalog-open-api.yaml:
##########
@@ -212,6 +212,34 @@ paths:
schema:
type: string
example: "accounting%1Ftax"
+ - name: pageToken
+ in: query
+ description:
+ Allows clients to make use of pagination by signaling to the
service that they would
+ prefer requests to be paginated to a “reasonable” number of
results.
+
+ New Clients always start the request by sending a required empty
“pageToken” e.g. GET /tables?continuationToken=””
+ Servers supporting pagination would recognize pagination is
requested due to the presence of the pageToken
+ and honor the contracts specified above by returning a non-empty
continuation token
+ if there are more results available, or an empty token or missing
field indicating no more results.
+ Servers that are non-pagination aware will ignore the token and
return all results as they previously did.
+
+ Old clients should not be specifying the new parameters
+ For servers that support pagination, they would notice the lack of
“continuationToken”
Review Comment:
Wanted to further expand on this with a table thats shows how `pageToken`
will work for both old clients, new clients, old services and new services.
cc @jackye1995 @danielcweeks @rdblue
| | Old services which does not support pagination | New
Service which does not support pagination | New Service which only supports
pagination | New Service (which supports both pagination and non pagination) |
| ----------- | ----------- |--------| ------- | -------- |
|Old Client (which does not send pageToken) | current behavior return full
results | current behavior return full result | Will be expecting
pageToken, and therefore will have to throw Unsupported Operation. In this case
expectation is that client will have to upgrade to use pageToken. | Either
return all results or if taking too long throw Unsupported(saying must use
pagination and upgrade to use the new client to send pageToken) |
|New Client (which sends pageToken) | would ingore pageToken and default to
current behavior return full result |would ignore pageToken and default to
current behavior return full result | return results in paginated way |
return results in paginated way |
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