Implement EF.MultipleParameters method. #36358
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Pull Request Overview
This PR introduces support for the new EF.MultipleParameters query method by extending the core query pipeline, expression visitors, and SQL generation, and updates tests to exercise the new parameterization modes.
- Add a
ParameterExpressionModeenum and thread it throughQueryParameterExpression, normalization, funcletization, and SQL translation. - Extend relational and SQL Server nullability and in‐memory processors to handle multiple parameter expansions.
- Update relational, SQL Server, SQLite, and Cosmos tests to parameterize collection tests over
ParameterizedCollectionModeand add newEF.MultipleParameterstests.
Reviewed Changes
Copilot reviewed 19 out of 20 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| src/EFCore/Query/QueryParameterExpression.cs | Replace boolean flags with ParameterExpressionMode property. |
| src/EFCore/Query/Internal/QueryableMethodNormalizingExpressionVisitor.cs | Normalize EF.MultipleParameters calls into QueryParameterExpression with the new mode. |
| src/EFCore/Query/Internal/ExpressionTreeFuncletizer.cs | Throw appropriate generic error for non-evaluatable EF.MultipleParameters<T>. |
| src/EFCore.Relational/Query/SqlNullabilityProcessor.cs | Handle multiple parameter expansion based on ParameterExpressionMode. |
| src/EFCore.Relational/Query/SqlExpressions/SqlParameterExpression.cs | Replace ShouldBeConstantized with ParameterExpressionMode. |
| src/EFCore.Relational/Query/RelationalSqlTranslatingExpressionVisitor.cs | Apply new mode flags when generating IN and JSON queries. |
| src/EFCore.Relational/Query/Internal/RelationalParameterProcessor.cs | Thread ParameterExpressionMode through parameter processing. |
| src/EFCore/Properties/CoreStrings.resx | Consolidate EF.Constant/EF.Parameter error messages into generic template. |
| test/.../NonSharedPrimitiveCollections* | Convert collection tests to theories over ParameterizedCollectionMode. |
| test/.../NorthwindWhereQuery* | Add EF_MultipleParameters_with_non_evaluatable_argument_throws tests for relational and provider-specific projects. |
Files not reviewed (1)
- src/EFCore/Properties/CoreStrings.Designer.cs: Language not supported
src/EFCore/Query/Internal/QueryableMethodNormalizingExpressionVisitor.cs
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src/EFCore.Relational/Query/RelationalQueryableMethodTranslatingExpressionVisitor.cs
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...Relational.Specification.Tests/Query/NonSharedPrimitiveCollectionsQueryRelationalTestBase.cs
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requested changes
Jul 15, 2025
src/EFCore.Relational/Query/RelationalQueryableMethodTranslatingExpressionVisitor.cs
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src/EFCore.Relational/Query/RelationalQueryableMethodTranslatingExpressionVisitor.cs
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src/EFCore/Query/Internal/QueryableMethodNormalizingExpressionVisitor.cs
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approved these changes
Jul 15, 2025
src/EFCore.Relational/Infrastructure/RelationalDbContextOptionsBuilder.cs
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| @@ -16,15 +16,15 @@ public sealed record RelationalParameterBasedSqlProcessorParameters | |||
| /// <summary> | |||
| /// Which parametrized collection translation mode should be used. | |||
| /// </summary> | |||
| public ParameterizedCollectionMode ParameterizedCollectionMode { get; init; } | |||
| public ParameterTranslationMode ParameterizedCollectionMode { get; init; } | |||
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Given the new naming, maybe call this CollectionParameterTranslationMode for consistency etc. (also elsewhere)
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UseParameterizedCollectionMode stays?
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I guess in the interest of avoiding another design discussion on the public API at this late hour, let's just keep things as they are - disregard my above comment...
src/EFCore.Relational/Query/RelationalQueryableMethodTranslatingExpressionVisitor.cs
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src/EFCore.Relational/Query/SqlExpressions/SqlParameterExpression.cs
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Closes #36357.