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.

1 / 10

Information about subtransactions is stored under?

2 / 10

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

3 / 10

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

4 / 10

If a transaction aborts, all page changes are reverted(rolled back) in place?

5 / 10

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

6 / 10

When a row is created, its xmin value is set to the transaction ID of which command?

7 / 10

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

8 / 10

Tuples can also be referred to as columns?

9 / 10

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

10 / 10

Page free space can often become fragmented?

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