getredash/redash · warning

Page is out of range.

Error message

Page is out of range.

What it means

Raised by paginate() in redash/handlers/base.py when the requested page starts past the end of the result set, i.e. (page-1)*page_size + 1 exceeds the total count while count > 0. It prevents Flask-SQLAlchemy's paginate from returning an empty items list for a nonsensical page.

Source

Thrown at redash/handlers/base.py:87

def get_object_or_404(fn, *args, **kwargs):
    try:
        rv = fn(*args, **kwargs)
        if rv is None:
            abort(404)
    except NoResultFound:
        abort(404)
    return rv


def paginate(query_set, page, page_size, serializer, **kwargs):
    count = query_set.count()

    if page < 1:
        abort(400, message="Page must be positive integer.")

    if (page - 1) * page_size + 1 > count > 0:
        abort(400, message="Page is out of range.")

    if page_size > 250 or page_size < 1:
        abort(400, message="Page size is out of range (1-250).")

    results = query_set.paginate(page, page_size)

    # support for old function based serializers
    if isclass(serializer):
        items = serializer(results.items, **kwargs).serialize()
    else:
        items = [serializer(result) for result in results.items]

    return {"count": count, "page": page, "page_size": page_size, "results": items}


def org_scoped_rule(rule):
    if settings.MULTI_ORG:
        return "/<org_slug>{}".format(rule)

View on GitHub (pinned to ca79fe988d)

Solutions

  1. Re-query page 1 or clamp page to ceil(count/page_size) when you get this 400.
  2. Refresh total count before requesting later pages; re-read the 'count' field from the response of the previous page.
  3. Pass a smaller page number or larger page_size within the 1-250 limit.

Example fix

# before
page = stale_page  # e.g. 3 but only 1 page exists
resp = client.get(f'/api/queries?page={page}&page_size=25')

# after
resp = client.get(f'/api/queries?page={min(stale_page, max(1, count // 25 + 1))}&page_size=25')
Defensive patterns

Strategy: validation

Validate before calling

count = resp_json['count']
max_page = max(1, -(-count // page_size))
page = min(page, max_page)

Try / catch

try:
    resp = client.get(url)
except HTTPError as e:
    if e.response.status_code == 400 and 'out of range' in e.response.text:
        resp = client.get(url_with_page_1)
    else:
        raise

Prevention

When it happens

Trigger: Requesting a page beyond the last one, e.g. 30 results with page_size=25 and ?page=3 (starts at item 51 > 30). Typically after data is deleted or filters shrink the result set while a client keeps a stale page parameter.

Common situations: Deleting many rows then refreshing a paginated view that still points to the old page; concurrent filtering that reduces counts; hardcoding a page number that only existed with older data.

Related errors


AI-assisted analysis of getredash/redash@ca79fe988d (2026-08-28). Data as JSON: /api/errors/93792bef1b46b75f. Report an issue: GitHub.