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

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2. Which of the below are true about a Pages Item Pointer?

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3. a transaction containing a savepoint is will still be considered as only a single transaction?

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

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

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

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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. The page header stores checksum and the sizes of the other parts of the page?

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9. What does an Item Pointer contain?

choose 3

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10. CLOG Pages are never cached in memory?

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