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. Tuples can also be referred to as columns?

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3. A page along with its tuples is read into the buffer cache with compression transformations to enhance cache efficiency?

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

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5. Page free space can often become fragmented?

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

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

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8. psql provides a special mode that allows you to continue a transaction after a failure?

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

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

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