iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
Deep pagination can make later pages slower because the database may need to process rows it will ultimately skip. But that mechanism alone does not prove pagination caused a week-by-week regression: the database, query plan, indexes, data, cache, and surrounding application work all matter. The way to find out is to compare the exact request and execution metrics at shallow and deep positions.
Why can later pages cost more?
With LIMIT/OFFSET, a request asks the server to skip earlier rows and return a later window. PostgreSQL cautions that skipped rows still have to be computed inside the server, so a large offset might be inefficient. MongoDB likewise documents that skip() becomes slower as the offset grows and that indexed range queries can typically outperform skip as offsets increase.
This is a possible cost pattern, not a universal performance law. The size of the effect depends on the execution plan, filters, sort, row width, indexes, data distribution, cache, and database implementation. A query that slowed over several weeks might also be affected by changes in any of those factors, or by work outside the database.
Recommended Free Tools
Search engines have different mechanics. Elastic explains that deep from/size pagination makes shards load hits from earlier pages as well as the requested page, increasing memory and CPU use. Its documentation advises against paging too deeply this way and recommends search_after with a point in time for deep traversal when a consistent index state is needed.
#1 Best Overall
- CRISP CLARITY: This 23.8″ Philips V line monitor delivers crisp Full HD 1920x1080 visuals. Enjoy movies, shows and videos with remarkable detail
- INCREDIBLE CONTRAST: The VA panel produces brighter whites and deeper blacks. You get true-to-life images and more gradients with 16.7 million colors
- THE PERFECT VIEW: The 178/178 degree extra wide viewing angle prevents the shifting of colors when viewed from an offset angle, so you always get consistent colors
- WORK SEAMLESSLY: This sleek monitor is virtually bezel-free on three sides, so the screen looks even bigger for the viewer. This minimalistic design also allows for seamless multi-monitor setups that enhance your workflow and boost productivity
- A BETTER READING EXPERIENCE: For busy office workers, EasyRead mode provides a more paper-like experience for when viewing lengthy documents
First make the result order predictable
Pagination needs a deterministic order. PostgreSQL warns that a LIMIT query without an ORDER BY that constrains rows into a unique order can return unpredictable subsets; changes in plans can also change which rows appear. Add a unique tie-breaker to the requested sort so records with equal primary sort values still have a defined order.
The same principle matters for seek-based pagination: the continuation condition must represent the complete sort tuple, including its tie-breaker. Otherwise, tied values can be skipped or repeated as the client moves between pages.
Rank #2
- CRISP CLARITY: This 22 inch class (21.5″ viewable) Philips V line monitor delivers crisp Full HD 1920x1080 visuals. Enjoy movies, shows and videos with remarkable detail
- 100HZ FAST REFRESH RATE: 100Hz brings your favorite movies and video games to life. Stream, binge, and play effortlessly
- SMOOTH ACTION WITH ADAPTIVE-SYNC: Adaptive-Sync technology ensures fluid action sequences and rapid response time. Every frame will be rendered smoothly with crystal clarity and without stutter
- INCREDIBLE CONTRAST: The VA panel produces brighter whites and deeper blacks. You get true-to-life images and more gradients with 16.7 million colors
- THE PERFECT VIEW: The 178/178 degree extra wide viewing angle prevents the shifting of colors when viewed from an offset angle, so you always get consistent colors
How to investigate the regression
- Capture the real request. Record the exact SQL or search request, parameter values, sort order, page size, and representative shallow and deep positions. Use the same filters and realistic values for comparison.
- Verify ordering. Confirm that the order is deterministic and ends in a unique key. For a multi-column sort, record every sort value that determines the continuation point.
- Compare plans and database metrics. Inspect the database-native execution plan and timing or buffer metrics for shallow and deep requests. Separate database execution from application serialization, network transfer, and any count query; otherwise, the measured endpoint time may obscure where the cost occurs.
- Inspect indexes against filters and sorting. Check whether the query’s filter and sort fields have useful index support and whether the chosen plan uses it. MongoDB’s query-optimization guidance recommends indexes for commonly issued queries and notes that indexes improve queries on indexed fields; the right index still depends on the actual query.
- Prototype the navigation that matches the product. If users mainly move forward or backward, test keyset or range pagination from the last seen sort tuple. Check what happens when rows are inserted or deleted between requests, and decide whether each page should reflect fresh data or a consistent snapshot.
- Use the search engine’s own continuation mechanism where applicable. For Elasticsearch deep traversal, evaluate
search_afterwith a point in time when a stable index view is required. Do not assume SQL pagination behavior or consistency semantics transfer to a search system. - Measure again under representative conditions. Repeat comparisons with realistic data and workload before concluding a change fixed the regression. A rewrite is a hypothesis until measured.
Which pagination approach fits?
| Approach | Best fit | Deep-page cost and constraints | Navigation and consistency |
|---|---|---|---|
LIMIT/OFFSET or skip |
Shallow pages, numbered pages, and direct jumps | Large offsets may require processing skipped rows or hits; impact depends on the engine and plan. | Needs deterministic ordering. Separate requests can be affected by changes in the data. |
| Keyset or range pagination | Sequential feeds and APIs with a stable ordered key | Continues from the last seen key and needs a suitable index and a correct predicate for the full sort tuple. MongoDB documents indexed range queries as typically more efficient than skip at growing offsets. | Fits next/previous traversal; arbitrary page jumps and exact page counts are less natural. |
| Search-after or cursor token | Search engines and APIs designed for continuation | Sort and token requirements are engine-specific. Elasticsearch recommends search_after with point in time for deep paging when consistent index state is needed. |
Cursor semantics and snapshot guarantees vary by product; check the deployed version. |
| Server-side cursor or bulk traversal | Batch processing and exports | May hold server-side state or require initial result work, so it is not automatically suitable for interactive requests. Elastic says scroll is intended for large-volume processing, not real-time user requests. | Useful for traversing a stable result context, subject to resource and lifetime considerations. |
Choose pagination around the user’s task
Keyset pagination starts from a known last result rather than counting past all earlier results. That makes it a natural fit for feeds, APIs, and exports that proceed sequentially, provided the sort keys and index support the query. It is less natural when users must jump directly to a numbered page such as page 237 or need a conventional page count.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →For search results, use the search product’s documented cursor or search-after behavior and check what consistency guarantees it provides. MongoDB Search supports searchAfter and searchBefore tokens for moving from a reference point. Its documentation also warns that counting results can affect performance and recommends using the count option only when needed.
Rank #3
- Clear visuals. Fluid motion: A 144Hz refresh rate and 1ms MPRT deliver smooth, tear‑free motion across work, gaming, and streaming for clearer, more fluid viewing.
- Eye comfort: TÜV Rheinland 3‑star* certification reduces harmful blue light while preserving stunning color quality without compromise. *TÜV Rheinland 3-star eye comfort certification.
- Wide viewing angle: Get consistent views across a wide 178° /178° viewing angle.
- In-Plane Switching (IPS): See excellent color accuracy and consistency across wide viewing angles with In-plane Switching (IPS) technology.
- Ultra-thin bezels: Maximize your viewing experience with thin bezels.
For Elasticsearch specifically, the current pagination guide documents a default from/size result window of 10,000 hits. Verify that limit against the deployed version and index setting before relying on it; for deep, consistent traversal, Elastic recommends search_after with a point in time.
What the post-mortem can—and cannot—conclude
The symptom “slower every week” does not identify a database, query, schema, index, or cause. Deep offsets are a credible suspect when later positions are slower, but the evidence needed to attribute this endpoint’s regression is its actual request, deterministic sort, plans, and measured timings. Without those, neither an offset rewrite nor a particular index can be called the fix.
Rank #4
- CURVED FOR ENHANCED ENGAGEMENT: An immersive viewing experience with a curved monitor that wraps more closely around your field of vision; It creates a wider view, enhancing depth perception and minimizing peripheral distraction
- SMOOTH PERFORMANCE FOR SEAMLESS CONTENT: Stay in the action when playing games, watching videos, or working on creative projects; The 100Hz refresh rate reduces lag and motion blur so you don't miss a thing in fast-paced moments¹
- MORE GAMING POWER: Gain the edge with optimizable game settings; Color and image contrast can be adjusted to see scenes more vividly and spot enemies hiding in the dark; Game Mode adjusts any game to fill the screen so you can view every detail²
- KEEP IT EASY ON THE EYES: Care for your eyes and stay comfortable, even during long sessions; Advanced eye comfort technology certified by TÜV reduces eye strain by minimizing blue light and reducing irritating screen flicker²
- INCREASED VERSATILITY: Connect to more; Plug devices straight into your monitor for increased flexibility, making your computing environment even more convenient
For engine-specific details, consult the official documentation: PostgreSQL LIMIT and OFFSET, Elastic pagination, MongoDB cursor.skip(), MongoDB query optimization, and MongoDB Search pagination.
Quick Recap
Best Value
- 【INTEGRATED SPEAKERS】Whether you're at work or in the midst of an intense gaming session, our built-in speakers provide rich and seamless audio, all while keeping your desk clutter-free.
- 【EASY ON THE EYES】 Protect your eyes and enhance your comfort with Blue-Light Shift technology. This feature reduces harmful blue light emissions from your screen, helping to alleviate eye strain during long hours of use and promoting healthier viewing habits.
- 【WIDEN YOUR PERSPECTIVE】Our sleek minimal bezel design ensures undivided attention. The nearly bezel-free display seamlessly connects in a dual monitor arrangement, delivering an unobstructed view that lets you focus on more at once, completely distraction-free.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
