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

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

2 / 10

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

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

Page free space can often become fragmented?

6 / 10

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

7 / 10

Which 2 items does a Virtual XID consist of?

8 / 10

CLOG Pages are never cached in memory?

9 / 10

A page along with its tuples is read into the buffer cache with compression transformations to enhance cache efficiency?

10 / 10

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

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