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Tuples are generated ___________ in producer-driven pipelining, they are generated ________ on demand, in demand-driven pipelining.

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Tuples are generated ___________ in producer-driven pipelining, they are generated ________ on demand, in demand-driven pipelining.

(a) Lazily, Eagerly

(b) Eagerly, Lazily

(c) Slowly, Eagerly

(d) Eagerly, Slowly

This question was addressed to me by my school principal while I was bunking the class.

Enquiry is from Evaluation of Expressions topic in division Query Processing Techniques of Database Management

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Correct answer is (b) Eagerly, Lazily

The explanation is: Producer-driven pipelining is very useful in parallel processing systems.

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