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

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

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4. If a transaction is read only which kind of Transaction ID is it allocated?

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5. The page Special Space is located at the start of the page with highest address

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6. indexes do not use row versioning?

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

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8. UPDATE can be regarded as which 2 separate operations?

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

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

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