Assumptions are correct till they are not

[smitpatel]

Query: Get mapped projection from associated query expression

Since projection binding can come from parent query expression too

Resolves #12239

[smitpatel]

@Pilchie for RC1 approval

[Pilchie]

Approved for RC1.

[ghost]

Hello @smitpatel!

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[alexandis]

Still getting this error in EfCore5. What am I doing wrong below?

variable 'articleTexts' of type 'System.Collections.Generic.IEnumerable`1[AbxEps.Fines.LawArticles.LawArticleDetail]' referenced from scope '', but it is not defined

           var articlesQuery =
                dbSet.Select(x => new { x.TenantId, x.LawArticleId }).Distinct()
                .GroupJoin(
                    dbSet,
                    x => new { x.TenantId, x.LawArticleId },
                    x => new { x.TenantId, x.LawArticleId },
                    (articleId, articleTexts) => new
                    {
                        ArticleId = articleId,
                        ArticleTexts = articleTexts
                    }
                )
                .SelectMany(
                    x => x.ArticleTexts,
                    (all, articleDetail) => new { ArticleId = all.ArticleId, ArticleTexts = all.ArticleTexts }
                )
                .Select(x => new LawArticleAggregated
                {
                    TenantId = x.ArticleId.TenantId,
                    LawArticleId = x.ArticleId.LawArticleId,
                    ArticleTexts = x.ArticleTexts.ToList()
                });

[smitpatel]

@alexandis - Please file a new issue with a runnable code and exception+stack trace you are seeing.