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

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

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4. status of a subtransaction is written into CLOG?

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

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

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

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

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9. index row headers like table row headers contain xmin and xmax fields?

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

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