From 282534525318815a7ca7cfc8dce21bd0f31dfde5 Mon Sep 17 00:00:00 2001
From: Gordon Murray <gordon@gordonmurray.ie>
Date: Thu, 11 Jun 2026 22:50:14 +0100
Subject: [PATCH] feat: raise row page-size cap from 200 to 1000

A developer asked for larger pages when reviewing data integrity across a
table. The cap lived in two places: MAX_LIMIT in the backend (applied to
/rows and /vector/preview) and the page-size dropdown in the frontend.

Raise MAX_LIMIT to 1000 and add 500 and 1000 options to the dropdown. The
default stays at 50. Vector cells keep their existing sparkline truncation,
so the per-cell payload is unchanged.
---
 CHANGELOG.md              | 3 +++
 backend/app.py            | 2 +-
 backend/tests/test_api.py | 3 ++-
 web/vanilla/index.html    | 2 ++
 4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 227b6c9..10f62e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+- Maximum rows per page raised from 200 to 1000. The page-size dropdown gains 500 and 1000 options; the default stays at 50 (#58).
+
 ### Docs
 - README screenshot replaced with one showing vector columns: CLIP badges, per-row sparklines, and the highlighted vector field in the schema panel. The old screenshot only showed scalar columns.
 
diff --git a/backend/app.py b/backend/app.py
index 288c50f..03e354a 100644
--- a/backend/app.py
+++ b/backend/app.py
@@ -51,7 +51,7 @@ async def startup_event():
 )
 
 DATA_PATH = Path(os.getenv("DATA_PATH", "/data"))
-MAX_LIMIT = 200
+MAX_LIMIT = 1000
 
 def validate_dataset_name(name: str) -> bool:
     return (
diff --git a/backend/tests/test_api.py b/backend/tests/test_api.py
index bd5db28..1e253a9 100644
--- a/backend/tests/test_api.py
+++ b/backend/tests/test_api.py
@@ -128,7 +128,8 @@ def test_rows_offset_past_end(client):
 
 def test_rows_limit_bounds(client):
     assert client.get("/datasets/sample/rows", params={"limit": 0}).status_code == 422
-    assert client.get("/datasets/sample/rows", params={"limit": 201}).status_code == 422
+    assert client.get("/datasets/sample/rows", params={"limit": 1000}).status_code == 200
+    assert client.get("/datasets/sample/rows", params={"limit": 1001}).status_code == 422
     assert client.get("/datasets/sample/rows", params={"offset": -1}).status_code == 422
 
 
diff --git a/web/vanilla/index.html b/web/vanilla/index.html
index bdeae7f..85cd52d 100644
--- a/web/vanilla/index.html
+++ b/web/vanilla/index.html
@@ -61,6 +61,8 @@ <h2 id="datasetTitle">Select a dataset</h2>
                                     <option value="50" selected>50 rows</option>
                                     <option value="100">100 rows</option>
                                     <option value="200">200 rows</option>
+                                    <option value="500">500 rows</option>
+                                    <option value="1000">1000 rows</option>
                                 </select>
                             </div>
                         </div>