SQLancer allows finding logic bugs in DBMS and is available at https://xitter.cf/t.co/iFDO1vUk58.
Joined May 2020
- Tweets148
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- Followers326
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SQLancer retweeted
CERT provides a new angle on the difficult problem of identifying relevant performance issues in database systems!
How can we automatically and efficiently find performance issues in databases? We propose CERT, a novel black-box technique: arxiv.org/pdf/2306.00355.pdf. Our key idea is to test them through the lens of cardinality estimation - a more restrictive query should return fewer rows.
SQLancer retweeted
How can we automatically and efficiently find performance issues in databases? We propose CERT, a novel black-box technique: arxiv.org/pdf/2306.00355.pdf. Our key idea is to test them through the lens of cardinality estimation - a more restrictive query should return fewer rows.
SQLancer retweeted
SQLancer now supports @MaterializeInc! Thanks a lot to Dennis Felsing for contributing the code. github.com/sqlancer/sqlancer…
SQLancer retweeted
CnosDB becomes the first cloud-native time-series database that supports SQLancer.
By using SQLancer, CnosDB technical team finds and fixes logical errors in product queries, and helps upstream projects build more stable query engines.
cnosdb.medium.com/engineers-…
#TimeSeries #CnosDB
SQLancer retweeted
Can ChatGPT replace database system testing tools like SQLancer or SQLsmith? An interesting read on an experiment by the @StarRocksLabs community. cc @CelerData celerdata.com/blog/chatgpt-i…
SQLancer retweeted
The paper has been released!! jinshengba.me/assets/pdf/qpg…
We already integrated our Query Plan Guidance (QPG) approach into SQLancer (see github.com/sqlancer/sqlancer…). Feel free to give it a try! I also gave a talk on QPG at Tsinghua University, hosted by Yu Jiang, earlier today and received insightful questions and feedback!
SQLancer retweeted
An interesting blog post on @Yugabyte's testing approaches, also mentioning @sqlancer_dbms.
yugabyte.com/blog/yugabytedb…
SQLancer retweeted
We already integrated our Query Plan Guidance (QPG) approach into SQLancer (see github.com/sqlancer/sqlancer…). Feel free to give it a try! I also gave a talk on QPG at Tsinghua University, hosted by Yu Jiang, earlier today and received insightful questions and feedback!
Our paper "Testing Database Engines via Query Plan Guidance" was accepted at @ICSEconf (3x accepts!). The core idea is to steer automated testing towards unseen query plans for finding logic bugs. We found over 50 unique, previously unknown bugs. Stay tuned for the preprint!
SQLancer retweeted
Wow, great way to run database test! Although the tweet happened last year, still wanna say congrats to @RiggerManuel to create SQLancer.
Impressive tool to automatically test database in order to find logic bugs during implementation!
#oceanbase #sqlancer #database #test
Excited that @AntGroup contributed support for OceanBase to SQLancer! Now, SQLancer has support for testing 14 different database systems. github.com/sqlancer/sqlancer…
SQLancer retweeted
Thanks to @12bytez's contribution, @sqlancer_dbms can now also test @Yugabyte! Great to see that SQLancer already has been useful in locating and preventing bugs (see github.com/yugabyte/yugabyte…).
SQLancer retweeted
Thanks to Yisong Han and @Datafuse_Labs for contributing testing support for Databend to @sqlancer_dbms! Hope it will help with preventing bugs before they reach any users. weekly.databend.rs/2022-09-2…
SQLancer retweeted
Missed it? Register today for our upcoming event! We have exciting talks lined up for you.
➡️ Check it out: meetup.com/apac-modern-data-…
#RisingWave #database #streamprocessing #serverless #opensource #meetups
SQLancer retweeted
After having attended and enjoyed last week's meetup, I'm happy to be presenting next week!
🔊 On August 25, we're holding our next meetup in Singapore. This hybrid event will have a list of speakers discussing the modern data stack. Our first guest speaker is @RiggerManuel (Assistant Professor, NUS).
Follow this link for upcoming details: meetup.com/apac-modern-data-…
SQLancer retweeted
We now have a website (nus-test.github.io/), a logo (designed by @nolentina), a Twitter account (@test_nus), and a name (Trustworthy Engineering of Software Technologies (TEST) Lab)! Unclear what the logo represents? I'd suggest searching for SG's "Gardens by the Bay."
SQLancer retweeted
The recording of @mraasveldt's @Dbtest_io keynote "DuckDB Testing - Present and Future" is now available youtube.com/watch?v=BgC79Zt2…
SQLancer retweeted
All the @Dbtest_io recordings (including the panel discussion) are online! youtube.com/playlist?list=PL…
SQLancer retweeted
Started my first day at @NUSComputing! Feel free to drop by my office if you want to chat or say hello.
SQLancer retweeted
We are excited that @shanluchicago from @UChicagoCS will present a keynote on “Tackling performance and correctness problems in database-backed web applications”, in which she will present their work on understanding and tackling database related problems in web applications.
ALT Modern web applications rely on underlying database engines to manage the increasing amount of user data. Unfortunately, the semantic gap between the application layer and the database layer easily leads to performance and correctness problems that severely affect the experience of web users. In this talk, I will discuss our work in understanding and tackling database related problems in modern web applications. Guided by our empirical study of this type of problems in open-source world, we developed checkers that found thousands of database-related problems in popular web applications, and IDE tools that help design database-friendly web pages.
SQLancer retweeted
We are excited that @mraasveldt from @duckdb will present the first DBTest keynote, titled “DuckDB Testing - Present and Future”!
