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. Each page has a layer that usually consists of?

choose 2

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2. psql provides a special mode that allows you to continue a transaction after a failure?

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

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4. When a row is created, its xmin value is set to the transaction ID of which command?

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

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6. status of a subtransaction is written into CLOG?

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

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8. Page free space can often become fragmented?

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9. Which function can we use to find the current transaction ID?

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10. Postgres table physical data files are always cross compatible across platforms?

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