The following query is given as an expression of relational algebra. Project[Account.aid,Transfer.to_aid]( Join[Account.aid=Transfer.from_aid](  Select[amount>1000000](Transfer),  Account)) All tables have a hash-based index defined on the keys. Assume that we have a B+ tree defined on Transfer.amount and a hash index on Transfer.from_aid. Assume also that our DBMS implements two join algorithms: a) the index nested loops join, and b) the hash join? Determine a query evaluation plan that reads the least number of blocks from the disk. Justify your solution. You can use rough estimations!

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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The following query is given as an expression of relational algebra.
Project[Account.aid,Transfer.to_aid](
Join[Account.aid=Transfer.from_aid](
 Select[amount>1000000](Transfer),
 Account))
All tables have a hash-based index defined on the keys. Assume that we have a B+ tree
defined on Transfer.amount and a hash index on Transfer.from_aid.
Assume also that our DBMS implements two join algorithms: a) the index nested loops
join, and b) the hash join?
Determine a query evaluation plan that reads the least number of blocks from the disk.
Justify your solution. You can use rough estimations! 

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