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

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

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3. Page header sizes can be easily displayed using the <choose from answers> extension

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

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5. Tuples can also be referred to as columns?

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6. Page free space can often become fragmented?

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

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8. When a transaction is committed Postgres uses a special <replace with answer> structure?

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

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10. What does an Item Pointer contain?

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