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

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

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

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

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5. Each page has a layer that usually consists of?

choose 2

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6. When a transaction is committed Postgres uses a special <replace with answer> structure?

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7. CLOG files are stored in which directory?

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8. Which function can we use to find the current transaction ID?

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

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10. CLOG contains how many bits for each transaction?

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