Select first row for each group in Postgres

Given a table seasons:

id

team

points

1

Liverpool

82

2

Liverpool

84

3

Brighton

34

4

Brighton

28

5

Liverpool

79

We want to find the rows containing the maximum number of points per team.

The expected output we want is:

id

team

points

3

Brighton

34

2

Liverpool

84

From the SQL Editor, you can run a query like:

1select distinct2  on (team) id,3  team,4  points5from6  seasons7order BY8  id,9  points desc,10  team;

The important bits here are:

• The desc keyword to order the points from highest to lowest.
• The distinct keyword that tells Postgres to only return a single row per team.

This query can also be executed via psql or any other query editor if you prefer to connect directly to the database.