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

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2. If a transaction aborts, all page changes are reverted(rolled back) in place?

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3. CLOG Pages are never cached in memory?

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4. Page free space can often become fragmented?

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

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

choose 2

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

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8. CLOG contains how many bits for each transaction?

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9. In Postgres, tables are often referred to as which of the below?

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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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