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

Which 2 items does a Virtual XID consist of?

2 / 10

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

3 / 10

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

4 / 10

What does an Item Pointer contain?

choose 3

5 / 10

Indexes values also support multi versioning with several versions of an index value existing at any point in time?

6 / 10

Each page has a layer that usually consists of?

choose 2

7 / 10

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

8 / 10

CLOG contains how many bits for each transaction?

9 / 10

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

10 / 10

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

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