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

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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. CLOG files are stored in which directory?

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

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

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

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

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9. Tuples can also be referred to as columns?

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10. CLOG contains how many bits for each transaction?

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