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

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2. The page header stores checksum and the sizes of the other parts of the page?

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

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

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5. The page Special Space is located at the start of the page with highest address

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6. What does an Item Pointer contain?

choose 3

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7. Page free space can often become fragmented?

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

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9. status of a subtransaction is written into CLOG?

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10. If a transaction aborts, all page changes are reverted(rolled back) in place?

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