"in" operator as test of membership and its delegation

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Posted on by Meneghino

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According to the latest clarification in regards to delegation, the "in" operator is delegable for SQL server.

Also, according to the operator documentation, the "in" operator can be a test of "Belonging to a collection or a table" and not only a test for substrings within strings.

I have failed up to now to make this operator work with SQL server in the following syntax, as not only does it not delegate, but it gives an error as can be seen in the screenshot.

Filter('[Access].[Entities]', ID in [2, 3, 8, 2, 6])

This error however, is not given in this trivial case and the operator works as expected:

Filter([1,2,3,4,5,6,7,8,9], Value in [2, 3, 8, 2, 6])

Has anyone made the operator work with non-trivial data sources and/or in a delegable way as a test for membership?

I am grateful for any insight, since this is needed to join two tables.

I think the following may be interested in this question: @AmitLoh-Powerap, @v-micsh-msft, @csm, @AndyPennell, @hpkeong, @mr-dang

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Building Power Apps

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v-micsh-msft on at

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Hi @Meneghino,

For the operator documentation, are you refering to the following document?

Operators and data types in PowerApps

Based on my understanding, the right part of the in operator should be one column belongs to the data source specified (here should be the Access table).

For your second test, the right part should be considered as a string.

Besides, there is a new blog published regarding delegation:

Large SharePoint lists, Delegation details, Flexible height gallery, Validation with regular expressions, and more

Regards

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Meneghino 6,949 on at

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Hi @v-micsh-msft
Thanks for coming back to me. Yes, indeed that is the operator documentation I am referring to, where in the middle of the page you find the following:
I am referring to the first usage of the in operator, as a test for membership.

As you can see from my trivial example above, this operator works very well with cached data sources (i.e. collections) but I have not managed made it work with SQL server.

As an aside, I would argue that the PowerApps team could have given the two operators different names to avoid confusion.
I have read the blog, and that is what prompted me to check if delegation was effectively happening as advertised.

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Meneghino 6,949 on at

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Hi @v-micsh-msft

Is there any update on this matter?

I think @AmitLoh-Powerap would be interested also.

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v-micsh-msft on at

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Hi @Meneghino,

Currently not.

Just from the Filter documentation, the formula you used for the Access table should work.

I will forward this and see if the document could be updated.

Thanks,

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Meneghino 6,949 on at

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Hi @v-micsh-msft is there any update on this?
The in operator is still not delegated for SQL server even though the documentation says it is. Also, there continues to be the error given that 'the right side is not a column", but it works as expected, so there is no error.
Thanks.

PS @Anonymous may be interested in this thread.

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Community Power Pla... on at

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Thanks @Meneghino for the link. I've edited my Idea so that it now requests delegation for the "in" operator.

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Community Power Pla... on at

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Is this fixed or not? I can't use the "In" to get the Filter delegated properly.

Details: https://powerusers.microsoft.com/t5/General-Discussion/Filter-delegation-to-SQL-doesn-t-work-properly/m-p/137737#M47525

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Hairy_Drumroll 251 on at

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18 months on, any progress?

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Community Power Pla... on at

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Seems that delegarion IS NOT working correctly when you are connected to SQL server via "On-Premises Data Gateway"
It should work correctly when you are connected to Cloud (Azure)

It's a shame it's not mentioned in documentation by Microsoft.

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Community Power Pla... on at

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I am connected to azure SQL instance and it is NOT working. Well I have still under 500 rows, so I get just a warning.

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