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. Information about subtransactions is stored under?

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2. The page Special Space is located at the start of the page with highest address

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

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

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

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6. CLOG files are stored in which directory?

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

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

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9. CLOG Pages are never cached in memory?

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10. What does an Item Pointer contain?

choose 3

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