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

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2. status of a subtransaction is written into CLOG?

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3. CLOG contains how many bits for each transaction?

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4. CLOG Pages are never cached in memory?

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5. Information about subtransactions is stored under?

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6. CLOG files are stored in which directory?

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

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

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9. Rows of TOAST tables are handled in such a way that they are never update?

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10. Which 2 of the below represent transaction IDs used for row versioning?

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