PostgreSQL 14 Internals Quiz

Created by Paul Sammy

PostgreSQL 14 Internals Chapter 3

A quiz to test the knowledge of those reading and learning from Postgres 14 Internals book by Egor Rogov, covering topics in Chapter 3.

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1. The page Special Space is located at the start of the page with highest address

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2. CLOG Pages are never cached in memory?

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3. UPDATE can be regarded as which 2 separate operations?

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4. Which 2 of the below represent transaction IDs used for row versioning?

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5. Which 2 items does a Virtual XID consist of?

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6. Page free space can often become fragmented?

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7. The page header is located in the highest address?

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8. To identify different versions of one and the same row, PostgreSQL marks each of them with which two value?

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9. If a transaction is read only which kind of Transaction ID is it allocated?

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10. A page along with its tuples is read into the buffer cache with compression transformations to enhance cache efficiency?

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