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

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2. Which 2 of the below represent transaction IDs used for row versioning?

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

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4. CLOG files are stored in which directory?

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

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6. virtual IDs exist only in PGDATA/pg_vxid when not cached?

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

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

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

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10. Tuples can also be referred to as columns?

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