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

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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. Tuples can also be referred to as columns?

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6. Page free space can often become fragmented?

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

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

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

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10. What does an Item Pointer contain?

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