Štěpán Rešl
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stepanresl.bsky.social
Štěpán Rešl
@stepanresl.bsky.social
Lead technical consultant @ DataBrothers
Data Platform #MicrosoftMVP ~ #PowerBI & #MicrosoftFabric 🏳️‍🌈

🌐 Links:
Blog: www.datameerkat.com
GitHub: https://github.com/tirnovar
Yesterday in Thailand, you were able towitness a rare green lightning strike. I was taking a picture of a thunderstorm with a long exposure and suddenly… one picture that I took was capable of catching this 😍
October 20, 2025 at 5:45 AM
Over the past four months, I have sat down to start writing a new blog post at least 10 times. I have many topics that I would like to cover. From topics focusing on ADHD and the data world, through multiple news in Fabric, to Power BI and Power Query. Every time it ends the same way. I just can't.
September 30, 2025 at 7:37 AM
Number Of Functions Matters!! (I mean... DAX UDFs) @jaypowerbi.bsky.social.

Model: 1 Table, 1 Row, 1 Measure
First run: 1011 UDFs
Second run: 20011 UDFs

Their DAX code is straightforward:
(x int64) => x
September 22, 2025 at 7:33 AM
I have some exciting clients with different API responses and special behaviors of their items, in addition to any other clients. In these cases, you can't trust any limit or behaviour that will be stable—executing a sub-pipeline with the Copy activity using the VNet gateway? Nope!
September 15, 2025 at 4:43 PM
We have just opened a call for speakers for Data Point Prague 2026

sessionize.com/data-point-p...
Data Point Prague 2026: Call for Speakers
Data Point Prague is back for its third edition, returning on April 20–21, 2026 to the Clarion Congress Hotel Prague – a bigger and professional venue...
sessionize.com
August 27, 2025 at 8:25 AM
Manchester… a city that combines glorious architecture from the Industrial Age with beautiful street art.
August 24, 2025 at 2:27 PM
Just a quick confession.. I think I am getting old. My previous temper to be loud, creating "shiny" stuff and speaking everywhere, completely vanished. I am thinking more about what I will invest my energy in. If I don't see potential behind, I am just skipping it without a single regret. 😅
August 4, 2025 at 10:00 PM
48M14S by PySpark
6M07S by Python with #DuckDB

... that is a difference.
August 3, 2025 at 2:53 PM
In the past few days, I have needed to handle private IP Access to #Azure #KeyVault from Python Notebooks of #MicrosoftFabric ... honestly I wasn't expecting that this would be such a pain. Not just from the perspective of steps, that you need to do, but also in the case of CU(s) consumption...
July 30, 2025 at 7:51 AM
One more #SVG after the while... I am no longer sharing them, as I can see that many people over-engineer their reports with them. It is an excellent addition to your visual layer, supporting your message, but it should not be the primary carrier of information. But... nah... do whatever you want...
July 29, 2025 at 8:27 AM
Hurray!! Timeout message with seconds in #MSPowerBI REST API.
July 28, 2025 at 1:27 PM
Hm... delays? ... naaah just completely failing requests.
July 28, 2025 at 12:08 PM
I was trying to get into Microsoft Partner Portal, and I have forgotten the order of words that they have for that website... so I have landed there 😂
July 25, 2025 at 10:49 AM
ONLY 10 DAYS LEFT.

Power Conference 2025 returns to Prague this December. 5 stages, 30+ speakers, real-world stories on Power Platform, Fabric & more. Call for Speakers closes July 31.

Submit now: sessionize.com/power-confer...

#PraguePowerConference
July 21, 2025 at 6:31 AM
🎉 6 Years as a Microsoft MVP! #MVPBuzz
July 10, 2025 at 3:17 PM
Honest question:
Are you using #MicrosoftFabric API for refreshing the T-SQL Endpoint of Lakehouse or #MSPowerBI API?
July 3, 2025 at 7:45 AM
Do you know that you can directly convert from "import" to "directQuery" mode with the #TMDL editor without needing to recreate the table in Power Query? #MSPowerBI
July 2, 2025 at 3:34 PM
Pokemon in #MicrosoftFabric!!!
June 30, 2025 at 11:01 AM
I have just added the newest sticker to my collection: I am silently judge your schema. 🫶🏼
June 24, 2025 at 8:36 AM
Uhh... I love this icon!
June 24, 2025 at 6:44 AM
So many great speakers (as @dhma.ch, Tomasz Kostyrka, and @suebayes.bsky.social) on @sqlbits.bsky.social
June 19, 2025 at 3:48 PM
When you mention that you can "run" DOOM in #MicrosoftFabric, and people want to see it... :D
June 19, 2025 at 12:41 PM
Currently, Fabric Link requires approximately 6M21S87MS to register new data in Dataverse. This is much better than it was, but it creates enough time to load non-actual or non-reliable data into your structures. Come to my session at @sqlbits.bsky.social to learn how to solve it.
June 18, 2025 at 12:42 PM
I have just arrived in London for @sqlbits.bsky.social 😍
June 17, 2025 at 8:26 AM