Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

`@fold` support for SQL

See original GitHub issue

Here’s the initial plan for how to handle @fold in SQL. May need additional considerations for interactions with other directives.

https://www.db-fiddle.com/f/cD9aczVx5B8gRiAXavWBhB/3

Let me know what you think @obi1kenobi @bojanserafimov @pmantica1

Issue Analytics

State:
Created 4 years ago
Comments:19 (9 by maintainers)

Top GitHub Comments

1reaction

bojanserafimovcommented, Sep 17, 2019

https://www.db-fiddle.com/f/4EXkttLVoWTdbMZQBsNDDB/3 I’ve added a Neighborhood with name = NULL. In the first query, it appears as null inside the array (which is correct), but it’s not counted in the _x_count.

Shouldn’t we implement _x_count using count(*) to solve this? It’s also simpler to emit count(*) from the LocalField than it is to emit count(some_column).

1reaction

obi1kenobicommented, Sep 5, 2019

Yeah @chewselene and I were just looking at this as well, and I think we ended up removing the outer GROUP BY since it didn’t seem to be necessary with the subqueries approach. I updated the fiddle to add a new SQL query with the GROUP BY removed.

Top Results From Across the Web

Power Query query folding - Microsoft Learn

Query folding is the ability for a Power Query query to generate a single query statement to retrieve and transform source data. The...

Which M functions support SQL code folding?

Relational data source transformations that can be query folded are those that can be written as a single SELECT statement. A SELECT statement...

Query Folding On SQL Queries In Power Query Using Value ...

Did you know that there's a way you can get query folding to work if you're using a native SQL query on SQL...

Fixing Query Folding with SQL Server in Power BI for ...

Query folding is Power Query's ability to generate a single query expression to retrieve and transform source data. Most SQL-based data sources such...

Solved! Query folding for native SQL in Power BI | by Nikola Ilic

If you choose to write custom SQL, all subsequent transformation steps applied in the Power Query Editor will not fold, even if you're...