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

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

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3. Tuples can also be referred to as columns?

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4. Page free space can often become fragmented?

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

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6. Information about subtransactions is stored under?

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7. Postgres table physical data files are always cross compatible across platforms?

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

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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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