The avatar for @asg017
Alex Garcia
Software engineer, available for freelance work! • he/him/his
Published
SQLite Blog
Edited
Jun 22, 2022
13 stars
3
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wasm = FileAttachment("lines0-sqljs@2.wasm").url()
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sqljs = require(await FileAttachment("lines0-sqljs@3.js").url())
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DemoSQLiteLinesDatabaseClient = async (source) => {
//Adapted from https://github.com/observablehq/stdlib/blob/main/src/sqlite.js
function load(source) {
return typeof source === "string"
? fetch(source).then(load)
: source instanceof Response || source instanceof Blob
? source.arrayBuffer().then(load)
: source instanceof ArrayBuffer
? new Uint8Array(source)
: source;
}

const [SQL, buffer] = await Promise.all([
sqljs({ locateFile: (filename, prefix) => wasm }),
Promise.resolve(source).then(load)
]);

return new SQLiteDatabaseClient(new SQL.Database(buffer));
}
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db = DemoSQLiteLinesDatabaseClient()
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db.queryRow(`select lines_version()`)
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db
select lines_version(), lines_debug();
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db
select rowid, line
from lines('alex
brian
craig')
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db
select
line ->> 'color' as color,
sum(line ->> 'value') as sum
from lines(${ndjson})
group by 1
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import { importCell } from "@mbostock/dataflow"
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