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In a _____________ operations do not wait for requests to produce tuples, but instead generate the tuples eagerly.

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In a _____________ operations do not wait for requests to produce tuples, but instead generate the tuples eagerly. (a) Demand-driven pipeline (b) Producer-driven pipeline (c) Demand pipeline (d) All of the mentioned This question was addressed to me during an internship interview. This interesting question is from Evaluation of Expressions topic in portion Query Processing Techniques of Database Management Select the correct answer from above options Interview Questions and Answers, Database Interview Questions and Answers for Freshers and Experience

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Correct answer is (b) Producer-driven pipeline To explain: Each operation in a producer-driven pipeline is modeled as a separate process or thread within the system that takes a stream of tuples from its pipelined inputs and generates a stream of tuples for its output.

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