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

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

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

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4. What does an Item Pointer contain?

choose 3

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

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

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

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

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

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10. Information about subtransactions is stored under?

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