實體框架7聯合查詢錯誤

Question

該查詢工作在EF6：

var ids = new int[] { 1, 2, 3 }; 
var consultants = _dbContext.Times 
    .Where(t => ids.Contains(t.MilestoneId)) 
    .Select(t => t.Consultant) 
    .Union(
     _dbContext.TimeBudgets 
      .Where(tb => ids.Contains(tb.MilestoneId)) 
      .Select(tb => tb.Consultant) 
    ); 

在EF7，我得到的錯誤：

An unhandled exception occurred while processing the request. 

Answer 1

這似乎未實現（還）。 https://github.com/aspnet/EntityFramework/issues/3459