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. CLOG files are stored in which directory?

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

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3. CLOG contains how many bits for each transaction?

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

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5. psql provides a special mode that allows you to continue a transaction after a failure?

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6. Information about subtransactions is stored under?

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

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

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9. If a transaction aborts, all page changes are reverted(rolled back) in place?

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10. CLOG Pages are never cached in memory?

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