github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/sql/sem/tree/testdata/eval/concat (about)

     1  # String concatenation.
     2  
     3  eval
     4  'a' || 'b'
     5  ----
     6  'ab'
     7  
     8  eval
     9  'a' || (1 + 2)::char
    10  ----
    11  'a3'
    12  
    13  eval
    14  b'hello' || 'world'
    15  ----
    16  '\x68656c6c6f776f726c64'
    17  
    18  eval
    19  array['foo'] || '{a,b}'
    20  ----
    21  ARRAY['foo','a','b']