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. Page free space can often become fragmented?

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3. indexes do not use row versioning?

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

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

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

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

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

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

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

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