webreflection / sqlite-worker Goto Github PK

Great project! I do not see a discussions tab so I will ask the question here.

In SQL-JS I use custom database functions, but I do not see a way to add these without building a custom package, am I missing something? Is there a way to interact directly with the sqlitedb instance?

Appreciate the feedback.

Currently, there is a fancy dance to make sql.js usable as both ESM and CommonJS, but this doesn't easily scale:

• I don't control https://sql.js.org/dist files, so the .js export might differ from its counter .wasm version provided online
• there are current issues in loading the non debugging version of sql.js, and this might penalize both performance and overall size
• changing the worker library option my result into importing the library twice

What to do

• load sql.js a part, instead of bundling within this module
• resolve automatically both dir and library options
• instrument the module to be able to load sql.js properly (ugly dance with CommonJS)

Hello,
Thank you for creating this package!

Could it be possible to have access to the DB instance from the worker?
Thanks

It appears indexeddb is being written to all at once here. The Absurd-Sql, based on SQL-JS, project also uses it here, possibly there are some performance gains since it writes in blocks opposed to all at once.

They support SQL.js but would be great to see how to properly setup connection with your persistence layer.

From your test site, I get these errors in the console.

Hi,

I am load testing and have noticed that the following happens when a row containing a single 1.3MB blob is written:

RuntimeError: memory access out of bounds
RuntimeError: table index is out of bounds
    at sql-wasm.wasm:0x36f48
    at sql-wasm.wasm:0x4259e
    at sql-wasm.wasm:0xb8643
    at za (sql-wasm.wasm:0xfa419)
    at e._sqlite3_close_v2 (VM26073 sql-wasm.js:2791)
    at c.export (VM26073 sql-wasm.js:420)
    at index.js:103
    at new Promise (<anonymous>)
    at index.js:102

This is possible on other sqlite3 implementations so I wonder if there is anything that can be done to make it work here as well

Many thanks

Edit: I originally posted 8.4MB but then found it happens also with as little as 1.3MB. I know it doesn't happen with 1MB, somewhere between 1MB and 1.3MB it hits a limit. This was tested on Chrome (Opera)

Occasionally, the following error occurs:

Failed to execute 'transaction' on 'IDBDatabase': A version change transaction is running.

Reproduce

• clear the whole data
• hard refresh

Expected

The iDB should never throw errors in general, but regardless it's opened and awaited, such error exists.

Hi,

For some reason, the following throws an error:

let table = 'todos';
await all`SELECT * FROM ${table} `

It seems strings can't be injected into backtick quotes when querying, but they do work when executing. Am I doing something wrong?

Thanks

Hello,

I am testing your plugin and find this to be an awesome idea. I have a question in regards of the update option; what buffer do I use? The one created in indexeddb and how? Or one created somewhere else in memory/server? Could you please elaborate a bit more on this concept? Probably with an example of its use.

import {init} from '//unpkg.com/sqlite-worker';
init({name: 'my-db', update(uInt8Array) {
// store the latest uInt8Array somewhere
}});

My understanding is when the above code is run, it will grab same buffer used so I can continue doing crud operations on it. Am I right? I tried just like that but it does not seem to be doing anything at all.

Thank You.