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 stores checksum and the sizes of the other parts of the page?

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2. Information about subtransactions is stored under?

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

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

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

choose 2

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6. Page free space can often become fragmented?

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

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

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

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

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