SQLR-42 — WASM in-browser SQL playground (/playground)#149
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A zero-install browser SQL playground running the full SQLRite engine in WebAssembly. CodeMirror 6 editor, sample datasets (Pokémon, Northwind multi-table JOINs, Movies + HNSW cosine vector search), results grid with column types / NULL highlighting / CSV export, share-via-URL-hash, and OPFS session persistence via SQL-script replay. Embedded at /playground on sqlritedb.com with a homepage card + hero CTA and a nav link. - Rebuilt sdk/wasm and vendored the pinned pkg into web/public/playground/pkg (~752 KB gzipped, under the 4 MB budget); loaded via an external runtime import() kept out of the bundler. - Persistence is script-replay, not binary .sqlrite — the WASM SDK is in-memory with no serialization. Binary round-trip tracked in SQLR-71. - Examples page (shipped card + JSON-LD), sitemap, and READMEs updated; OG/Twitter images added. sdk/wasm/Cargo.lock refreshed by the build. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What this is
A zero-install, browser-only SQL playground that runs the full SQLRite engine entirely in WebAssembly — the highest-marketing-leverage example from the SQLR-38 umbrella. Reachable at
/playgroundon sqlritedb.com.Features
#sql=hash), Download / Upload.sqlArchitecture
web/src/app/playground/; ships as a statically-prerendered Next route (109 kB First Load JS, CodeMirror lazy-loaded viadynamic(ssr:false)).sqlrite-enginecrate, built with wasm-pack and vendored as a pinned copy intoweb/public/playground/pkg/(~752 KB gzipped, under the 4 MB budget). Loaded with a runtimeimport()kept external from the bundler (wasm-pack'simport.meta.urlglue doesn't survive webpack).examples/wasm-playground/README.md.Scope decision (recorded on SQLR-42)
The WASM
Databaseis in-memory only with no serialization, so a binary.sqlritebyte image can't be produced in the browser today. Per discussion, v1 persists the SQL script (replayed on reload) and downloads/uploads.sql. Binary.sqlriteround-trip (needs an in-memory pager backend +Database.export()/import()) is filed as SQLR-71.askis omitted (needs a server key).Testing
wasm-pack build·tsc·next lint·next build(51 pages)next start): boot+OPFS badge, all 3 datasets incl. HNSW KNN, error pane, CSV +.sqldownloads,#sql=share round-trip, persistence-across-reload, reset, Cmd+Enter.ORDER BY(engine supports single-key only).Notes
sdk/wasm/Cargo.lockrefreshed by the build (stale0.1.23→0.10.2)./favicon.ico404 is unrelated to this PR.🤖 Generated with Claude Code