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 transaction containing a savepoint is will still be considered as only a single transaction?

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

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3. What does an Item Pointer contain?

choose 3

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4. Which of the below are true about a Pages Item Pointer?

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

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

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7. Page free space can often become fragmented?

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

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9. CLOG files are stored in which directory?

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

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