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. CLOG Pages are never cached in memory?

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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. status of a subtransaction is written into CLOG?

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4. Each page has a layer that usually consists of?

choose 2

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

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

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7. index row headers like table row headers contain xmin and xmax fields?

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

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9. What does an Item Pointer contain?

choose 3

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10. CLOG files are stored in which directory?

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