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. Each page has a layer that usually consists of?

choose 2

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2. What does an Item Pointer contain?

choose 3

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

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

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

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6. When a row is created, its xmin value is set to the transaction ID of which command?

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

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8. CLOG Pages are never cached in memory?

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9. To identify different versions of one and the same row, PostgreSQL marks each of them with which two value?

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10. status of a subtransaction is written into CLOG?

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