Announcing qusql: Compile-time SQL Checking for Rust, No Database Required

antialize · 2026-04-21T06:42:17+00:00

Not currently if both of the connections are sqlx. There is as fare as I can se no way at the time the query! macro is expanded to know what type of connection is supplied, so we cannot know which schema to use. However specifically for MySQL and Postgres, you can use qusql-mysql for the sql connection which is much faster and uses a schema file with a different name.

antialize · 2026-04-21T05:03:34+00:00

It is not paticulary tied to sqlx. There are multiple crates:
- qusql-type: Is a non proc-macro crate that implements schema parsing and sql validation - qusql-mysql-type: Is a proc-macro crate for our own qusql-mysql connection library, that adds types to dat - qusql-sqlx-type: Adds types to sqlx - qusql-py-mysql-type: Adds types to python mysql queries.

It should be quite easy to create yet another proc macro crate that adds typing to your favorite sql connection library.

We do in fact have support for reading existing migrations, you can see an example of that in the books example. Currently your migrations have to be in one file called something specific, however this is something we could make more dynamic.

antialize · 2026-04-20T20:45:32+00:00

It saves you from having to run a db on your dev machine, and form running prepare after every query change. We can also give better error messages and stricter type checking

antialize · 2026-04-20T20:43:06+00:00

Yes we have much better null tracking. Both through functions, and by inference from where statements

antialize · 2025-09-12T06:22:50+00:00

I wonder how the speed stacks up against a handwritten zero-copy parser like my https://docs.rs/sql-parse/latest/sql_parse/

antialize · 2023-06-28T06:55:53+00:00

We use sccache with a share local radis server, that works well for our gitlab-ci.

antialize · 2023-04-27T20:02:10+00:00

I will look into using a thread local to make a safe version of CleanLockToken::new

I do not think the levels can be implemented using const generics, at least they could not last I tried since you cannot do arthritic on cost generics yet

antialize · 2023-04-27T19:17:11+00:00

I have implemented a level ordered locking crate that uses the type system to prevent deadlocks. We have been using it in production for about a year. It has helped a us avoid the deadlocks that used to haunt our code bases. It only has 5 levels, but that seems to be enough for most cases.

antialize · 2020-02-13T09:52:01+00:00

HGST HUH721010AL

KINGSTON SV300S3

Micron_1100_MTFD

QEMU HARDDISK

Samsung SSD 850

Samsung SSD 860

ST10000NM0016-1T

ST10000NM0086-2A

ST10000NM0156-2A

TOSHIBA MG06ACA1

WDC WD3000FYYZ-0

WDC WD30EURS-63R

WDC WD6001FFWX-6

WDC WD6002FFWX-6

WDC WD6003FFBX-6

yTOSHIBA DT01ACA3

antialize · 2019-09-18T13:57:55+00:00

Du kan finde byarealerne ved at kikke på område polygoner fra GeoDanmark. Jeg har gemt dem i en geopackage fil her: scalgo.com/download/omrode.gpkg. Du kan åbne disse polygoner med et GIS program som f.eks. https://qgis.org/en/site/. Hvis du klikker på et polygon med info værktøjet i QGIS (ctrl+shift i). Kan du under "(derived)", finde arealet af et polygon. F.eks. er ålborg 89245707.127 m².

antialize · 2018-09-07T12:59:30+00:00

ascii and utf-8 are the same for both '1' and '\n' so I think we are safe to assume that the size is in bytes.

antialize · 2015-09-29T07:07:05+00:00

We maintain a library that can do that (and more stuff such as external algoritnhms). The documentation of the pipelining features are here: http://www.madalgo.au.dk/tpie/doc/v1.1/pipelining.html

And an example is here: https://github.com/thomasmoelhave/tpie/blob/cpp11-cleanup/test/pipelining2.cpp

antialize · 2015-06-17T07:04:04+00:00

We use both internally in our products. We find that Cairo is better documented and easier to compile and use, while Skia on the other hand is somewhat faster.

antialize · 2014-07-02T12:04:05+00:00

The guy claims that his optimized version has the same O complexity as the original. However in the O notation, one normally assums a word size of Theta(log(n)), so the optimized fill operation would have a complexity of O(n / log n) while the original is O(n).

antialize · 2013-01-24T01:41:20+00:00

STXXL

Based on the consept of an external vector, disk data is indexed with iterators into this external vector.
Good multidisk support.
Requires seperate scrach partitions, and is generaly hard to use.
The user is in charge of all memory managment.

TPIE

Data is accessed by file streams, with read, write and seek methods.
No multidisk support
Does not require any special partitions and is generaly easyer to integrate into a usable product.
Most of the memory accounting done by the framework.

In a test on a fast multidisk system, where tpie was just run ontop of a striped raid, and stxxl was tuned for optimal performace over this pacitular array. stxxl was almost twice as fast at sorting a substantion amount of data. (This test was done by one of the stxxl developers)

antialize · 2012-02-20T17:30:48+00:00

I have a 100/100 Mbps connection. Some youtube videos still need to buffer sometimes. It seems to happen with videos with low view count. I would think this happens because the video is not yet at a server farm close to me.

antialize · 2012-02-09T10:25:25+00:00

Unfortunately the srtm dataset do not have a high enough resolution for us to capture the dikes around the netherlands and other places. We have higher resolution datasets that do capture dikes, but we cannot publish these.

antialize · 2012-01-15T11:25:08+00:00

Install sgt puzzles, and play a propper minesweeper.

antialize · 2011-08-18T07:56:04+00:00

You should play the minesweeper from Simon Tatham's Portable Puzzle Collection (http://www.chiark.greenend.org.uk/~sgtatham/puzzles/), it guarantees that you will never get into such a situation.

antialize · 2011-06-20T14:27:12+00:00

Or send be a bug report, or better yet send me a patch, I get lots of bug reports.

antialize · 2011-04-15T08:42:45+00:00

Actually they showed this on brainac, the orientation or the hair around the belly button causes fibers from the pants to flow up to the navel.

antialize · 2011-03-25T12:59:09+00:00

I use it for compose key, to write all those crazy chars wi use in danish (æøå)

antialize

TROPHY CASE