clockworklabs / clockworklabs/SpacetimeDB

Pagination for views and tables

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#4,750 2 comments 5 reactions 0 assignees View on GitHub

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feature-request
Dominant language
Rust
Stars
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Forks
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Avg merge
2d 7h
Merged PRs (30d)
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Description

it would be really useful to have an index type for pagination. my idea is #[index(page(page_size)) (idk rust enough if that is valid/good syntax for this) that is accessed with ctx.db.table.column.page(nr) and returns the subset of rows defined by the page_size that's sorted by the column it was used on.

this would simplify and optimise leaderboards, Auction pages, any form of listings and so on a lot.
once view parameters are out, it would be possible to make a view that takes the page nr as parameter and then just get the subset without having to manually sort and subset the data within the view.

as for the client updates, the client could just insert sort the new and deleted rows, so there is no need to change bsatn or the WS protocol for that

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

No files or tests are named. Start by locating the existing index, view, and table query paths, then review how view parameters, client updates, BSATN, and the WebSocket protocol currently work. Done requires an agreed pagination API and semantics for page size, ordering, and row updates, with implementation scope and tests identified.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
databases
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
35/100

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