Reformatting table in SQL - postgresql

Question

I have a table in sql
Table Link
is there a way to reformat this table with contract_kind as rows and percentile values as columns without me having to create 4 tables with where clauses and joining them. Using Postgres.

Answer 1

TLDR: just use the crosstab function as per documentation
Long reply:
I recreated a similar case with
create table test (id int, contract_kind text, percentile int, cut_off_time float);
insert into test values
(1,'TEMPLATE',25,1.91),
(2,'TEMPLATE',50,51.93),
(3,'TEMPLATE',75,158.41),
(4,'TEMPLATE',90,343.01),
(5,'TEMPLATE_EDITABLE',25,26),
(6,'TEMPLATE_EDITABLE',50,27),
(7,'TEMPLATE_EDITABLE',75,28),
(8,'TEMPLATE_EDITABLE',90,29),
(9,'UPLOAD_EDITABLE',25,10),
(10,'UPLOAD_EDITABLE',50,20),
(11,'UPLOAD_EDITABLE',75,30),
(12,'UPLOAD_EDITABLE',90,40),
(13,'UPLOAD_SIGN',25,40),
(14,'UPLOAD_SIGN',50,77),
(15,'UPLOAD_SIGN',75,99),
(16,'UPLOAD_SIGN',90,133);
result:
id | contract_kind | percentile | cut_off_time
----+-------------------+------------+--------------
1 | TEMPLATE | 25 | 1.91
2 | TEMPLATE | 50 | 51.93
3 | TEMPLATE | 75 | 158.41
4 | TEMPLATE | 90 | 343.01
5 | TEMPLATE_EDITABLE | 25 | 26
6 | TEMPLATE_EDITABLE | 50 | 27
7 | TEMPLATE_EDITABLE | 75 | 28
8 | TEMPLATE_EDITABLE | 90 | 29
9 | UPLOAD_EDITABLE | 25 | 10
10 | UPLOAD_EDITABLE | 50 | 20
11 | UPLOAD_EDITABLE | 75 | 30
12 | UPLOAD_EDITABLE | 90 | 40
13 | UPLOAD_SIGN | 25 | 40
14 | UPLOAD_SIGN | 50 | 77
15 | UPLOAD_SIGN | 75 | 99
16 | UPLOAD_SIGN | 90 | 133
(16 rows)
Now to use the crosstab you need to create the tablefunc extension.
create extension tablefunc;
and then you can use it to pivot the data
select * from
crosstab('select percentile, contract_kind, cut_off_time from test order by 1,2')
as ct(percentile int, template float, template_editable float, upload_editable float, upload_sing float);
result
percentile | template | template_editable | upload_editable | upload_sing
------------+----------+-------------------+-----------------+-------------
25 | 1.91 | 26 | 10 | 40
50 | 51.93 | 27 | 20 | 77
75 | 158.41 | 28 | 30 | 99
90 | 343.01 | 29 | 40 | 133
(4 rows)