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

a transaction containing a savepoint is will still be considered as only a single transaction?

2 / 10

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

3 / 10

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

4 / 10

CLOG files are stored in which directory?

5 / 10

Which 2 of the below represent transaction IDs used for row versioning?

6 / 10

What does an Item Pointer contain?

choose 3

7 / 10

When a transaction is committed Postgres uses a special <replace with answer> structure?

8 / 10

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

9 / 10

indexes do not use row versioning?

10 / 10

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

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