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

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

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

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

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

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6. indexes do not use row versioning?

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7. CLOG contains how many bits for each transaction?

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

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9. Page header sizes can be easily displayed using the <choose from answers> extension

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10. Information about subtransactions is stored under?

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