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. Tuples can also be referred to as columns?

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

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

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4. The page header is located in the highest address?

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5. indexes do not use row versioning?

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6. To identify different versions of one and the same row, PostgreSQL marks each of them with which two value?

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

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8. CLOG files are stored in which directory?

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

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10. When a row is created, its xmin value is set to the transaction ID of which command?

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