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

Page header sizes can be easily displayed using the <choose from answers> extension

2 / 10

Information about subtransactions is stored under?

3 / 10

Each page has a layer that usually consists of?

choose 2

4 / 10

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

5 / 10

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

6 / 10

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

7 / 10

In Postgres, tables are often referred to as which of the below?

8 / 10

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

9 / 10

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

10 / 10

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

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