SQL Intersect not supported in Phoenix , alternative for intersect in phoenix?

Question

I have the following SQL expression:

SELECT SS_ITEM_SK AS POP_ITEM_SK 
FROM (SELECT SS_ITEM_SK 
FROM (SELECT SS_ITEM_SK,(ITEM_SOLD-ITEM_RETURNED) AS TOT_SOLD_QTY FROM (SELECT SS_ITEM_SK,COUNT(SS_ITEM_SK) AS ITEM_SOLD,COUNT(SR_ITEM_SK) AS ITEM_RETURNED FROM STORE_SALES1 right outer join STORE_RETURNS1 on SS_TICKET_NUMBER = SR_TICKET_NUMBER AND SS_ITEM_SK = SR_ITEM_SK GROUP BY SS_ITEM_SK)))  

INTERSECT 

SELECT CS_ITEM_SK AS POP_ITEM_SK FROM (SELECT CS_ITEM_SK
FROM (SELECT CS_ITEM_SK,(ITEM_SOLD-ITEM_RETURNED) AS TOT_SOLD_QTY FROM (SELECT CS_ITEM_SK,COUNT(CS_ITEM_SK) AS ITEM_SOLD,COUNT(CR_ITEM_SK) AS ITEM_RETURNED FROM CATALOG_SALES1 right outer join CATALOG_RETURNS1 on CS_ORDER_NUMBER = CR_ORDER_NUMBER and CS_ITEM_SK = CR_ITEM_SK  GROUP BY CS_ITEM_SK))) 

INTERSECT 

SELECT WS_ITEM_SK AS POP_ITEM_SK FROM (SELECT WS_ITEM_SK
FROM (SELECT WS_ITEM_SK,(ITEM_SOLD-ITEM_RETURNED) AS TOT_SOLD_QTY FROM (SELECT WS_ITEM_SK,COUNT(WS_ITEM_SK) AS ITEM_SOLD,COUNT(WR_ITEM_SK) AS ITEM_RETURNED FROM WEB_SALES1 right outer join WEB_RETURNS1 on WS_ORDER_NUMBER = WR_ORDER_NUMBER AND WS_ITEM_SK = WR_ITEM_SK GROUP BY WS_ITEM_SK))) 

Apache phoenix is not supporting the keyword INTERSECT. Can somebody please help me to correct above query without using INTERSECT?

Answer 1

I think there are multiple ways you can do this:

1. Join Method

   select * from ((query1 inner join query2 on column_names) inner join query3 on column_names) 
   

2. Exists Method

   (query1 where exists (query2 where exists (query3)) )
   

3. In Method

   (query1 where column_name in (query2 where column_name in (query3)) )
   

References: https://blog.jooq.org/2015/10/06/you-probably-dont-use-sql-intersect-or-except-often-enough/ and http://phoenix.apache.org/subqueries.html

Although I would use the exists/in over the join since if these queries return huge data then you might have to optimize your queries using this: https://phoenix.apache.org/joins.html