Fix __typename rebasing for interface objects
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… being rebased onto a parent type whose runtime types contain at least one interface object
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This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @apollo/composition@2.6.2 ### Patch Changes - Updated dependencies \[[`7b5b836d15247c997712a47847f603aa5887312e`](7b5b836), [`74ca7dd617927a20d79b824851f7651ef3c40a4e`](74ca7dd), [`3f7392b84f8b626b248b59ce81f193d0f0272045`](3f7392b)]: - @apollo/federation-internals@2.6.2 - @apollo/query-graphs@2.6.2 ## @apollo/gateway@2.6.2 ### Patch Changes - Updated dependencies \[[`7b5b836d15247c997712a47847f603aa5887312e`](7b5b836), [`74ca7dd617927a20d79b824851f7651ef3c40a4e`](74ca7dd), [`ffe67dfbdb77d15dde2ab6dee66dba05c7b5c037`](ffe67df)]: - @apollo/federation-internals@2.6.2 - @apollo/query-planner@2.6.2 - @apollo/composition@2.6.2 ## @apollo/federation-internals@2.6.2 ### Patch Changes - Avoid `>=` comparison for `FeatureVersion` objects ([#2883](#2883)) - Fix query planning bug where `__typename` on interface object types in named fragments can cause query plan execution to fail. ([#2886](#2886)) ([#2886](#2886)) ## @apollo/query-graphs@2.6.2 ### Patch Changes - fix: handle directive conditions on fragments when building query graphs ([#2875](#2875)) This fix addresses issues with handling fragments when they specify directive conditions: - when exploding the types we were not propagating directive conditions - when processing fragment that specifies super type of an existing type and also specifies directive condition, we were incorrectly preserving the unnecessary type condition. This type condition was problematic as it could be referencing types from supergraph that were not available in the local schema. Instead, we now drop the redundant type condition and only preserve the directives (if specified). - Updated dependencies \[[`7b5b836d15247c997712a47847f603aa5887312e`](7b5b836), [`74ca7dd617927a20d79b824851f7651ef3c40a4e`](74ca7dd)]: - @apollo/federation-internals@2.6.2 ## @apollo/query-planner@2.6.2 ### Patch Changes - Add a limit to the number of options for a selection. In some cases, we will generate a lot of possible paths to access a field. There is a process to remove redundant paths, but when the list is too large, that process gets very expensive. To prevent that, we introduce an optional limit that will reject the query if too many paths are generated ([#2880](#2880)) - Updated dependencies \[[`7b5b836d15247c997712a47847f603aa5887312e`](7b5b836), [`74ca7dd617927a20d79b824851f7651ef3c40a4e`](74ca7dd), [`3f7392b84f8b626b248b59ce81f193d0f0272045`](3f7392b)]: - @apollo/federation-internals@2.6.2 - @apollo/query-graphs@2.6.2 ## @apollo/subgraph@2.6.2 ### Patch Changes - Updated dependencies \[[`7b5b836d15247c997712a47847f603aa5887312e`](7b5b836), [`74ca7dd617927a20d79b824851f7651ef3c40a4e`](74ca7dd)]: - @apollo/federation-internals@2.6.2 ## apollo-federation-integration-testsuite@2.6.2 Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
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We should never query
__typenamefrom a subgraph for an object type marked@interfaceObject, as the value we get back will always be wrong. Normally, we prevent this by not having a__typenameedge in the federated query graph.However, during the optimization where we try to reuse existing named fragments, we rebase them from the API schema onto the subgraph schemas. We usually ignore selections where this leads to invalidity (e.g. fields or types that don't exist in the subgraph schema), but the code doesn't currently view the
__typenamefield being rebased onto an interface object as invalid. This has led to bugs where named fragments containing__typenameaccidentally cause it to be queried on interface objects in subgraph queries.This PR changes
Field.rebaseOn()such that__typenamebeing rebased onto a parent type that is an interface object is considered invalid. Additionally, if the parent type is an abstract type, and that abstract type could possibly be an interface object type at runtime, then this is additionally considered invalid.