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

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2. Indexes values also support multi versioning with several versions of an index value existing at any point in time?

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3. status of a subtransaction is written into CLOG?

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

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

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6. Information about subtransactions is stored under?

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

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

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9. Page header sizes can be easily displayed using the <choose from answers> extension

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

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