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

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

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

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4. In Postgres, tables are often referred to as which of the below?

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

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

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

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8. Information about subtransactions is stored under?

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

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

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