stark=# select array_to_string(array_agg(repeat('x',x)),E'\n') as "x
y
z"
from generate_series(1,20) as x(x);

┌─[ RECORD 1 ]─────┐
│ x↵│ x           ↵│
│ y↵│ xx          ↵│
│ z │ xxx         ↵│
│   │ xxxx        ↵│
│   │ xxxxx       ↵│
│   │ xxxxxx      ↵│
│   │ xxxxxxx     ↵│
│   │ xxxxxxxx    ↵│
│   │ xxxxxxxxx   ↵│
│   │ xxxxxxxxxx  ↵│
│   │ xxxxxxxxxxx ↵│
│   │ xxxxxxxxxxxx↵│
│   │ xxxxxxxxxxxx…│
│   │…x           ↵│
│   │ xxxxxxxxxxxx…│
│   │…xx          ↵│
│   │ xxxxxxxxxxxx…│
│   │…xxx         ↵│
│   │ xxxxxxxxxxxx…│
│   │…xxxx        ↵│
│   │ xxxxxxxxxxxx…│
│   │…xxxxx       ↵│
│   │ xxxxxxxxxxxx…│
│   │…xxxxxx      ↵│
│   │ xxxxxxxxxxxx…│
│   │…xxxxxxx     ↵│
│   │ xxxxxxxxxxxx…│
│   │…xxxxxxxx     │
└───┴──────────────┘

stark=# \pset linestyle ascii
Line style (linestyle) is ascii.

stark=# select array_to_string(array_agg(repeat('x',x)),E'\n') as "x
y
z"
from generate_series(1,20) as x(x);
stark"***# stark"***# stark-***# +-[ RECORD 1 ]-----+
| x+| x           +|
| y+| xx          +|
| z | xxx         +|
|   | xxxx        +|
|   | xxxxx       +|
|   | xxxxxx      +|
|   | xxxxxxx     +|
|   | xxxxxxxx    +|
|   | xxxxxxxxx   +|
|   | xxxxxxxxxx  +|
|   | xxxxxxxxxxx +|
|   | xxxxxxxxxxxx+|
|   | xxxxxxxxxxxx.|
|   |.x           +|
|   | xxxxxxxxxxxx.|
|   |.xx          +|
|   | xxxxxxxxxxxx.|
|   |.xxx         +|
|   | xxxxxxxxxxxx.|
|   |.xxxx        +|
|   | xxxxxxxxxxxx.|
|   |.xxxxx       +|
|   | xxxxxxxxxxxx.|
|   |.xxxxxx      +|
|   | xxxxxxxxxxxx.|
|   |.xxxxxxx     +|
|   | xxxxxxxxxxxx.|
|   |.xxxxxxxx     |
+---+--------------+

stark=# \pset linestyle old-ascii
Line style (linestyle) is old-ascii.

stark=# select array_to_string(array_agg(repeat('x',x)),E'\n') as "x
y
z"
from generate_series(1,20) as x(x);
stark"# stark"# stark-# 
+-[ RECORD 1 ]-----+
| x | x            |
| y | xx           |
| z | xxx          |
|   | xxxx         |
|   | xxxxx        |
|   | xxxxxx       |
|   | xxxxxxx      |
|   | xxxxxxxx     |
|   | xxxxxxxxx    |
|   | xxxxxxxxxx   |
|   | xxxxxxxxxxx  |
|   | xxxxxxxxxxxx |
|   | xxxxxxxxxxxx |
|   | x            |
|   | xxxxxxxxxxxx |
|   | xx           |
|   | xxxxxxxxxxxx |
|   | xxx          |
|   | xxxxxxxxxxxx |
|   | xxxx         |
|   | xxxxxxxxxxxx |
|   | xxxxx        |
|   | xxxxxxxxxxxx |
|   | xxxxxx       |
|   | xxxxxxxxxxxx |
|   | xxxxxxx      |
|   | xxxxxxxxxxxx |
|   | xxxxxxxx     |
+---+--------------+

stark=# \pset expanded off
Expanded display (expanded) is off.

stark=# \pset columns 40
Target width (columns) is 40.

stark=# select array_to_string(array_agg(repeat('x',x)),E'\n') as "x
y
z",array_to_string(array_agg(repeat('x',20-x)),E'\n') as "x
y
z"
from generate_series(1,25) as x(x);

+--------------------+-----------------+
|         x          |        x        |
|+        y          |+       y        |
|+        z          |+       z        |
+--------------------+-----------------+
| x                  | xxxxxxxxxxxxxxx |
| xx                 ; xxxx            |
| xxx                : xxxxxxxxxxxxxxx |
| xxxx               ; xxx             |
| xxxxx              : xxxxxxxxxxxxxxx |
| xxxxxx             ; xx              |
| xxxxxxx            : xxxxxxxxxxxxxxx |
| xxxxxxxx           ; x               |
| xxxxxxxxx          : xxxxxxxxxxxxxxx |
| xxxxxxxxxx         : xxxxxxxxxxxxxx  |
| xxxxxxxxxxx        : xxxxxxxxxxxxx   |
| xxxxxxxxxxxx       : xxxxxxxxxxxx    |
| xxxxxxxxxxxxx      : xxxxxxxxxxx     |
| xxxxxxxxxxxxxx     : xxxxxxxxxx      |
| xxxxxxxxxxxxxxx    : xxxxxxxxx       |
| xxxxxxxxxxxxxxxx   : xxxxxxxx        |
| xxxxxxxxxxxxxxxxx  : xxxxxxx         |
| xxxxxxxxxxxxxxxxxx : xxxxxx          |
| xxxxxxxxxxxxxxxxxx : xxxxx           |
| x                  : xxxx            |
| xxxxxxxxxxxxxxxxxx : xxx             |
| xx                 : xx              |
| xxxxxxxxxxxxxxxxxx : x               |
| xxx                :                 |
| xxxxxxxxxxxxxxxxxx :                 |
| xxxx               :                 |
| xxxxxxxxxxxxxxxxxx :                 |
| xxxxx              :                 |
| xxxxxxxxxxxxxxxxxx :                 |
| xxxxxx                               |
| xxxxxxxxxxxxxxxxxx                   |
| xxxxxxx                              |
+--------------------+-----------------+
(1 row)