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

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2. The page header stores checksum and the sizes of the other parts of the page?

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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. CLOG files are stored in which directory?

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5. Tuples can also be referred to as columns?

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

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

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

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

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10. status of a subtransaction is written into CLOG?

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