create extension tsvector2;
SELECT '1'::tsvector2;
 tsvector2 
-----------
 '1'
(1 row)

SELECT '1 '::tsvector2;
 tsvector2 
-----------
 '1'
(1 row)

SELECT ' 1'::tsvector2;
 tsvector2 
-----------
 '1'
(1 row)

SELECT ' 1 '::tsvector2;
 tsvector2 
-----------
 '1'
(1 row)

SELECT '1 2'::tsvector2;
 tsvector2 
-----------
 '1' '2'
(1 row)

SELECT '''1 2'''::tsvector2;
 tsvector2 
-----------
 '1 2'
(1 row)

SELECT E'''1 \\''2'''::tsvector2;
 tsvector2 
-----------
 '1 ''2'
(1 row)

SELECT E'''1 \\''2''3'::tsvector2;
  tsvector2  
-------------
 '1 ''2' '3'
(1 row)

SELECT E'''1 \\''2'' 3'::tsvector2;
  tsvector2  
-------------
 '1 ''2' '3'
(1 row)

SELECT E'''1 \\''2'' '' 3'' 4 '::tsvector2;
    tsvector2     
------------------
 ' 3' '1 ''2' '4'
(1 row)

SELECT $$'\\as' ab\c ab\\c AB\\\c ab\\\\c$$::tsvector2;
               tsvector2                
----------------------------------------
 'AB\\c' '\\as' 'ab\\\\c' 'ab\\c' 'abc'
(1 row)

SELECT tsvector2in(tsvector2out($$'\\as' ab\c ab\\c AB\\\c ab\\\\c$$::tsvector2));
              tsvector2in               
----------------------------------------
 'AB\\c' '\\as' 'ab\\\\c' 'ab\\c' 'abc'
(1 row)

SELECT '''w'':4A,3B,2C,1D,5 a:8';
       ?column?        
-----------------------
 'w':4A,3B,2C,1D,5 a:8
(1 row)

SELECT 'a:3A b:2a'::tsvector2 || 'ba:1234 a:1B';
          ?column?          
----------------------------
 'a':3A,4B 'b':2A 'ba':1237
(1 row)

-- comparison
select 'a:1 b:2'::tsvector2 < 'a:1 b:3'::tsvector2;
 ?column? 
----------
 f
(1 row)

select 'a:1 b:2'::tsvector2 <= 'a:1 b:3'::tsvector2;
 ?column? 
----------
 f
(1 row)

select 'a:1 b:2'::tsvector2 > 'a:1 b:3'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:1 b:2'::tsvector2 >= 'a:1 b:3'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:1 b:4'::tsvector2 < 'a:1 b:3'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:1 b:4'::tsvector2 <= 'a:1 b:3'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:1 b:4'::tsvector2 > 'a:1 b:3'::tsvector2;
 ?column? 
----------
 f
(1 row)

select 'a:1 b:4'::tsvector2 >= 'a:1 b:3'::tsvector2;
 ?column? 
----------
 f
(1 row)

select 'a:1 b:2'::tsvector2 = 'a:1 b:2'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:1 b:2'::tsvector2 <> 'a:1 b:2'::tsvector2;
 ?column? 
----------
 f
(1 row)

select 'a:1 b:2'::tsvector2 <= 'a:1 b:2'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:1 b:2'::tsvector2 >= 'a:1 b:2'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:1 b:2'::tsvector2 = 'a:2 b:4'::tsvector2;
 ?column? 
----------
 f
(1 row)

select 'a:1 b:2'::tsvector2 <> 'a:2 b:4'::tsvector2;
 ?column? 
----------
 t
(1 row)

select 'a:7 b:9'::tsvector2 = 'a:2 b:4'::tsvector2;
 ?column? 
----------
 f
(1 row)

select 'a:7 b:9'::tsvector2 <> 'a:2 b:4'::tsvector2;
 ?column? 
----------
 t
(1 row)

drop extension tsvector2;