main-actor isolated code warning after updating to the latest package combinations sqlitedata 1.1.0 & . structured queries 0.22.1

[ajaxharg]

Description

I have >1000 errors similar to below after updating packages. The error is in the macro generated @table code.

/var/folders/d2/_0my_0s95fvfd4025q6ysx3m0000gn/T/swift-generated-sources/@_swiftmacro_19PointFreeIssueTest27testCTE5TablefMe.swift:1:54 Conformance of 'testCTE' to protocol 'Table' crosses into main actor-isolated code and can cause data races; this is an error in the Swift 6 language mode

Tested working sqlitedata v 1.0.0 with structured queries .21.0.
Not working with v 1.1 & .22.1

I also raised the issue on slack with the minimal project that demonstrates the issue. Vanilla Xcode project with a single @table struct TableA { let id : Int, var name : String}

Checklist

• I have determined whether this bug is also reproducible in a vanilla SwiftUI project.
• I have determined whether this bug is also reproducible in a vanilla GRDB project.
• If possible, I've reproduced the issue using the main branch of this package.
• This issue hasn't been addressed in an existing GitHub issue or discussion.

Expected behavior

No response

Actual behavior

No response

Reproducing project

No response

SQLiteData version information

1.1.0

Sharing version information

No response

GRDB version information

No response

Destination operating system

26

Xcode version information

26.0.1

Swift Compiler version information

swift-driver version: 1.127.14.1 Apple Swift version 6.2 (swiftlang-6.2.0.19.9 clang-1700.3.19.1)
Target: arm64-apple-macosx26.0

[ajaxharg]

if I write the following to set up a CTE, then I also got the same errors in 1.0.0 and 0.21. If @selection is deleted, the code compiles without errors.

@Table @Selection
struct lastLocationDate {
    let queenID:Queen.ID
    let date:Date
}

[ajaxharg]

The reminders app example compiles just fine. Yet a vanilla app with just a schema file won't without a lot of conformance warnings warnings. I tried with various targets, swift lang version and the example app seems ok.

Checking the packages used, the GRDB version does seem to be an older variant than the one pulled in if I use the latest sqlitedate package.

vanilla app:

examples:

vanilla app example:
conformance.zip

[ajaxharg]

My app is compiling with warnings after changing to swift compiler 6, targeting iOS 26 and default actor isolation: non-isolated actors. I can't change to default: Main-actors as it won't compile the @selection. The vanilla set up from Xcode before was no compiler selected, iOS 18 and main actors.

I set the precompiled key defaults write com.apple.dt.Xcode IDEPackageEnablePrebuilts NO which finally seemed to fix the errors. It is hard to know if that definitely affected the build as sometimes a change made no difference until the second compile.

[mbrandonw]

Hi @ajaxharg, the project you provided does not produce any errors for me:

I'm not really sure what is going on with your set up, but either way I do not think it's a problem with the library. I am going to convert this to a discussion for now. Please feel free to continue the conversation over there!

[mbrandonw]

FWIW I was able to reproduce this by updating your project to use Swift 6 mode. It was on Swift 5 mode. In the future please be sure to upload a precise project that demonstrates the problem. Also if a specific version of the library has the problem then you can further use "exact" when specifying the dependency to make sure that when someone else opens the project SPM resolves the problematic version.

We have a fix here.