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. status of a subtransaction is written into CLOG?

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2. at any one time Postgres can have several versions of a row?

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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. Which 2 items does a Virtual XID consist of?

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5. Page free space can often become fragmented?

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6. Each page has a layer that usually consists of?

choose 2

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

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

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

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10. Information about subtransactions is stored under?

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