Štěpán Rešl
@stepanresl.bsky.social
Lead technical consultant @ DataBrothers
Data Platform #MicrosoftMVP ~ #PowerBI & #MicrosoftFabric 🏳️🌈
🌐 Links:
Blog: www.datameerkat.com
GitHub: https://github.com/tirnovar
Data Platform #MicrosoftMVP ~ #PowerBI & #MicrosoftFabric 🏳️🌈
🌐 Links:
Blog: www.datameerkat.com
GitHub: https://github.com/tirnovar
Sometimes you just need to see what your M (Power Query) code is actually doing — and that’s not always obvious.
I added an Execution Plan to M-Game: run your code, open the plan, inspect the flow + intermediate results ✅
Link: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
I added an Execution Plan to M-Game: run your code, open the plan, inspect the flow + intermediate results ✅
Link: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
February 10, 2026 at 10:59 AM
Sometimes you just need to see what your M (Power Query) code is actually doing — and that’s not always obvious.
I added an Execution Plan to M-Game: run your code, open the plan, inspect the flow + intermediate results ✅
Link: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
I added an Execution Plan to M-Game: run your code, open the plan, inspect the flow + intermediate results ✅
Link: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
I have implemented a few updates:
> New topic: Data Formats
> +25 new levels
> Playground page
> 404 Page
> over 599 supported functions/enumerators
> Improved M logic (better error support)
Link: mgame.datameerkat.com
> New topic: Data Formats
> +25 new levels
> Playground page
> 404 Page
> over 599 supported functions/enumerators
> Improved M logic (better error support)
Link: mgame.datameerkat.com
February 4, 2026 at 3:52 PM
I have implemented a few updates:
> New topic: Data Formats
> +25 new levels
> Playground page
> 404 Page
> over 599 supported functions/enumerators
> Improved M logic (better error support)
Link: mgame.datameerkat.com
> New topic: Data Formats
> +25 new levels
> Playground page
> 404 Page
> over 599 supported functions/enumerators
> Improved M logic (better error support)
Link: mgame.datameerkat.com
I built an online practice app for M (Power Query) 🚀
✅ 150 levels across topics
✅ Multiple solutions per level
✅ No account, progress saved locally
✅ Most of the M functions are implemented
Try it: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
✅ 150 levels across topics
✅ Multiple solutions per level
✅ No account, progress saved locally
✅ Most of the M functions are implemented
Try it: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
January 30, 2026 at 1:46 PM
I built an online practice app for M (Power Query) 🚀
✅ 150 levels across topics
✅ Multiple solutions per level
✅ No account, progress saved locally
✅ Most of the M functions are implemented
Try it: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
✅ 150 levels across topics
✅ Multiple solutions per level
✅ No account, progress saved locally
✅ Most of the M functions are implemented
Try it: mgame.datameerkat.com
#PowerQuery #MLanguage #PowerBI
This weekend, I am in Stockholm on a quick trip. Finally, I have some time to visit this beautiful city.
January 24, 2026 at 6:33 PM
This weekend, I am in Stockholm on a quick trip. Finally, I have some time to visit this beautiful city.
Hmm... Taskflows... since 2024-11, they have been with us. Can we please get them full API support? I am not talking about the "./taskflow202411" endpoint. #MicrosoftFabric
January 6, 2026 at 1:35 PM
Hmm... Taskflows... since 2024-11, they have been with us. Can we please get them full API support? I am not talking about the "./taskflow202411" endpoint. #MicrosoftFabric
The Call for Speakers for Data Point Prague 2026 is still open. But not for much longer... only last 19 days to submit your awesome sessions.
sessionize.com/data-point-p...
sessionize.com/data-point-p...
Data Point Prague 2026: Call for Speakers
Data Point Prague is back for its third edition, returning on May 28-29, 2026 to Prague.This event is dedicated to the Microsoft data stack and modern...
sessionize.com
January 5, 2026 at 10:05 AM
The Call for Speakers for Data Point Prague 2026 is still open. But not for much longer... only last 19 days to submit your awesome sessions.
sessionize.com/data-point-p...
sessionize.com/data-point-p...
Merry Christmas, everyone. I wish you the best time with your loved ones. 🫶🏼
I am not one of those who actually celebrate it, so I am skiing on empty slopes 🥳.
I am not one of those who actually celebrate it, so I am skiing on empty slopes 🥳.
December 25, 2025 at 8:10 AM
Merry Christmas, everyone. I wish you the best time with your loved ones. 🫶🏼
I am not one of those who actually celebrate it, so I am skiing on empty slopes 🥳.
I am not one of those who actually celebrate it, so I am skiing on empty slopes 🥳.
It was 14 minutes in the queue... then I had to cancel it because it was not progressing.
December 17, 2025 at 8:16 AM
It was 14 minutes in the queue... then I had to cancel it because it was not progressing.
Theoretical question: Why do we have a "new" flag in Tenant Settings, when new options are appearing without it? I thought this "new" flag was supposed to help Admins find out what appears in their tenant settings and what needs to be checked... but it is not helping at all.
December 2, 2025 at 8:59 AM
Theoretical question: Why do we have a "new" flag in Tenant Settings, when new options are appearing without it? I thought this "new" flag was supposed to help Admins find out what appears in their tenant settings and what needs to be checked... but it is not helping at all.
Ontology in #MicrosoftFabric vs Lakehouse... 0:1
November 19, 2025 at 10:59 AM
Ontology in #MicrosoftFabric vs Lakehouse... 0:1
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
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 😍
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
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.
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
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
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
Model: 1 Table, 1 Row, 1 Measure
First run: 1011 UDFs
Second run: 20011 UDFs
Their DAX code is straightforward:
(x int64) => x
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
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!
Manchester… a city that combines glorious architecture from the Industrial Age with beautiful street art.
August 24, 2025 at 2:27 PM
Manchester… a city that combines glorious architecture from the Industrial Age with beautiful street art.
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
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 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
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...
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
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...
Hurray!! Timeout message with seconds in #MSPowerBI REST API.
July 28, 2025 at 1:27 PM
Hurray!! Timeout message with seconds in #MSPowerBI REST API.
Hm... delays? ... naaah just completely failing requests.
July 28, 2025 at 12:08 PM
Hm... delays? ... naaah just completely failing requests.
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
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 😂
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
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
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
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
