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 of the below represent transaction IDs used for row versioning?

2 / 10

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

3 / 10

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

4 / 10

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

5 / 10

Each page has a layer that usually consists of?

choose 2

6 / 10

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

7 / 10

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

8 / 10

UPDATE can be regarded as which 2 separate operations?

9 / 10

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

10 / 10

CLOG files are stored in which directory?

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