SELECT uri_escape('foobar');
 uri_escape 
------------
 foobar
(1 row)

SELECT uri_escape(':/?#[]@!$&''()*+,;=');
                       uri_escape                       
--------------------------------------------------------
 %3A%2F%3F%23%5B%5D%40%21%24%26%27%28%29%2A%2B%2C%3B%3D
(1 row)

SELECT uri_escape('foo bar');
 uri_escape 
------------
 foo%20bar
(1 row)

SELECT uri_escape('foo bar', space_to_plus := false);
 uri_escape 
------------
 foo%20bar
(1 row)

SELECT uri_escape('foo bar', space_to_plus := true);
 uri_escape 
------------
 foo+bar
(1 row)

SELECT uri_escape(E'foo\nbar');
 uri_escape 
------------
 foo%0Abar
(1 row)

SELECT uri_escape(E'foo\nbar', normalize_breaks := false);
 uri_escape 
------------
 foo%0Abar
(1 row)

SELECT uri_escape(E'foo\nbar', normalize_breaks := true);
  uri_escape  
--------------
 foo%0D%0Abar
(1 row)

SELECT uri_unescape('foobar');
 uri_unescape 
--------------
 foobar
(1 row)

SELECT uri_unescape('%3A%2F%3F%23%5B%5D%40%21%24%26%27%28%29%2A%2B%2C%3B%3D');
    uri_unescape    
--------------------
 :/?#[]@!$&'()*+,;=
(1 row)

SELECT uri_unescape('foo+bar');
 uri_unescape 
--------------
 foo+bar
(1 row)

SELECT uri_unescape('foo+bar', plus_to_space := false);
 uri_unescape 
--------------
 foo+bar
(1 row)

SELECT uri_unescape('foo+bar', plus_to_space := true);
 uri_unescape 
--------------
 foo bar
(1 row)

SELECT uri_unescape('foo%0D%0Abar');
 uri_unescape 
--------------
 foo         +
 bar
(1 row)

SELECT uri_unescape('foo%0D%0Abar', break_conversion := false);
 uri_unescape 
--------------
 foo         +
 bar
(1 row)

SELECT uri_unescape('foo%0D%0Abar', break_conversion := true);
 uri_unescape 
--------------
 foo\r       +
 bar
(1 row)