优化基于EAV的SQL查询

Question

我有一个代码，可以在普通PC上在大约15秒内返回大约100万条记录。

select joined.* , eset.PageNo from (select * from
( 
 select e.EntityTypeID ,  a.EntityID , a.AttributeValue , ea.AttributeName
 from
(SELECT      T1.EntityID,
        T1.AttributeID,
        STUFF(( SELECT    ', ' + T22.OptionText
                FROM   [POC].[dbo].[EntityAttributeOptionValues] t2
                  inner join EntityAttributeOptions t22 on 
                  t22.ID = t2.OptionValueID

                WHERE     T2.AttributeID = T1.AttributeID
                AND       T2.EntityID = T1.EntityID

              --  ANd t2.EntityID between 5060 and 56598

                FOR XML PATH('')
              ), 1, 2, '') [AttributeValue]
  FROM  [POC].[dbo].[EntityAttributeOptionValues] t1
  inner join EntityAttributeOptions t11 on 
  t11.ID = t1.OptionValueID

  --where t1.EntityID between  5060 and 56598


  GROUP BY    T1.EntityID, T1.AttributeID
  ) a
   inner join Entities e on e.ID =  a.EntityID
   inner join EntityAttributes ea on ea.ID = a.AttributeID

   --where e.EntityTypeID = 9


   ) options


     union all
    (select EntityAttributes.EntityTypeID, EntityAttributeValues.EntityID as  'EntityID' , EntityAttributeValues.AttributeValue,EntityAttributes.attributeName from EntityAttributeValues
      inner join EntityAttributes on EntityAttributes.ID = EntityAttributeValues.AttributeID

     )) joined

    inner join Entity_Paged_View_With_Set eset on eset.ID = joined.EntityID 

此查询将返回名为EntityTypeID, EntityID, AttributeValue, AttributeName, PageNo的五列。

EntityTypeID        EntityID  AttributeValue        AttributeName           PageNo
1               5790    Musics, Paintings   Hobbies                 286
1              11673    Musics, Paintings   Hobbies                 580
1              30595    Males                   Gender                  1527
1              31860    No                  Want Bus Facility   1590
1              39755    Males                   Gender                  1985
1              41020    No                  Want Bus Facility   2048
1              47599    Males                   Gender                  2377
1              48864    No                  Want Bus Facility   2440 

现在，当我尝试大约100行时，大约需要3秒钟。我想按照

过滤此查询

pageNo = 1 and EntityTypeID = 1
or

pageNo = 1 and EntityTypeID = 3

or
pageNo = 5632 and EntityTypeID = 1

等等。

请您说明我应该在哪里申请条件。即使是order by子句也会大大降低性能。

union all之前的上部查询很慢。但后者很快。

我应该在哪里应用优化查询的条件，以便执行

只需不到一秒钟