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. indexes do not use row versioning?

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

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3. UPDATE can be regarded as which 2 separate operations?

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

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5. A page along with its tuples is read into the buffer cache with compression transformations to enhance cache efficiency?

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

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

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

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

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10. Which 2 items does a Virtual XID consist of?

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