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. Each page has a layer that usually consists of?

choose 2

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2. Page free space can often become fragmented?

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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. The page header is located in the highest address?

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6. CLOG files are stored in which directory?

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7. virtual IDs exist only in PGDATA/pg_vxid when not cached?

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8. If a transaction is read only which kind of Transaction ID is it allocated?

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

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10. Rows of TOAST tables are handled in such a way that they are never update?

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