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. The page header is located in the highest address?

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2. Which 2 items does a Virtual XID consist of?

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

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

choose 2

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5. What does an Item Pointer contain?

choose 3

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6. CLOG files are stored in which directory?

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7. status of a subtransaction is written into CLOG?

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

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

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

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