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. CLOG files are stored in which directory?

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2. psql provides a special mode that allows you to continue a transaction after a failure?

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

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

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

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

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

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8. Tuples can also be referred to as columns?

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9. Page free space can often become fragmented?

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10. Rows of TOAST tables are handled in such a way that they are never update?

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