xarici_ishler (u/xarici_ishler)

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

jarek83 · 4 months ago

That was quick. I wanted to be quick too, but learned that I was too eager and missed that the are optional fields to pick from. I then re-submitted with the same email (will it go through or you have uniqueness validation?) providing optional stuff this time. Maybe play with positioning of the optional fields so they would be more apparent before submitting email address.

xarici_ishler · 4 months ago

Thanks for the feedback! I updated the form

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

xarici_ishler · 4 months ago

The first ever SQL debugger – runs & visualizes your query step-by-step, every clause, condition, expression, incl. GROUP BY, aggregates / windows, DISTINCT (ON), subqueries (even correlated ones!), CTEs, you name it.

You can search for full or partial rows and see the whole query lineage – which intermediate rows from which CTEs/subqueries contributed to the result you're searching for.

Entirely offline & no usage of AI. Free in-browser version (using PGLite WASM), paid desktop version.

No website yet, here's a 5 minute showcase (skip to middle): https://www.loom.com/share/c03b57fa61fc4c509b1e2134e53b70dd

xarici_ishler · 4 months ago

https://dequery.io

This comment is still (surprisingly!) gaining traction, so leaving this here

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

jarek83 · 4 months ago

Finish it, shut up, take my money! This looks really good - make a website just to make it possible to sign up for updates.

xarici_ishler · 4 months ago

https://dequery.io :) Added a little signup form (with possibility of providing additional feedback)

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

jarek83 · 4 months ago

Finish it, shut up, take my money! This looks really good - make a website just to make it possible to sign up for updates.

xarici_ishler · 4 months ago

Thanks for the motivation to finish this as soon as possible :) I'm working on a basic landing page with screenshots/videos and a "get notified" button right now – shoot me an (empty, if you want) email (in profile) and I'll ping you as soon as it's ready

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

thenaturalist · 4 months ago

Possibly look at https://duckdb.org/community_extensions/extensions/parser_to...

Even if not for DuckDB, you can use this to validate/ parse queries possibly.

xarici_ishler · 4 months ago

Thanks for the suggestion! I am using https://github.com/tobymao/sqlglot, which magically supports most SQL dialects. And yes, support for DuckDB is also in future plans

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

jeffhuys · 4 months ago

This would be incredible to understand why some queries execute slow; most of the time it's one of the steps in between that takes 99% of the execution time at our company. Do you record the time each step takes?

xarici_ishler · 4 months ago

You're onto the original idea I started out with! Unfortunately it's very difficult to correlate input SQL to an output query plan – but possible. It's definitely in future plans

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

Ni3l55 · 4 months ago

Cool! We're dealing with many complex CTEs and costly queries. Would be useful to have those visualized one by one.

xarici_ishler · 4 months ago

What database are you using? I'd be happy to hear about your usecases and hopefully help you, shoot me an email (in profile)

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

benjaminsky2 · 4 months ago

This is awesome! I’m work with a team of analysts and data engineers who own a pretty big snowflake data warehouse. We write a ton of dbt models and have a range of sql skill levels on the team. This would be the perfect way to allow more junior devs to build their skills quickly and support more complex models.

I would recommend you target data warehouses like snowflake and bigquery where the query complexity and thus value prop for a tool like this is potentially much higher.

xarici_ishler · 4 months ago

Thank you, nice to get some idea validation from folks in the industry. For sure data warehouses are the top priority on my TODO list, I picked PG first because that's what I'm familiar with.

I can ping you via email when the debugger is ready, if you're interested. My email is in my profile

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

IceDane · 4 months ago

This seems like it could be extremely useful.

xarici_ishler · 4 months ago

Thanks! Would you mind sharing what would be your use cases?

At my job, all of our business logic (4 KLOC of network topology algorithms) is written in a niche query language, which we have been migrating to PostgreSQL. When an inconsistency/error is found, tracking it can take days, manually commenting out parts of query and looking at the results.

xarici_ishler commented on Ask HN: What are you working on? (April 2025) · Posted by u/david927

anitil · 4 months ago

Is this postgres only? What an interesting idea!

xarici_ishler · 4 months ago

For now, yes, but I'll start working on adding support for all other DBs (especially OLAP) as soon as possible. The geberal approach is the same, I just have to handle all the edge cases of the SQL dialects

u/xarici_ishler

KarmaCake day108April 26, 2021

About

I'm a Node.js developer with 6 years of wide-ranging experience, 2x Google Intern.

github.com/rafasofizada CV: https://bit.ly/3AdzGKD (Google Docs) rafa.sofizadeh@gmail.com

Working on world's first SQL debugger

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