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

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2. CLOG contains how many bits for each transaction?

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3. Which of the below are true about a Pages Item Pointer?

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4. What does an Item Pointer contain?

choose 3

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

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7. at any one time Postgres can have several versions of a row?

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

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9. indexes do not use row versioning?

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10. Indexes values also support multi versioning with several versions of an index value existing at any point in time?

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