github.com/mithrandie/csvq@v1.18.1/docs/_posts/2006-01-02-string-operators.md (about)

     1  ---
     2  layout: default
     3  title: String Operators - Reference Manual - csvq
     4  category: reference
     5  ---
     6  
     7  # String Operators
     8  
     9  | operator | description |
    10  | :- | :- |
    11  | \|\| | Concatenation |
    12  
    13  ## Syntax
    14  
    15  ```sql
    16  string operator string
    17  ```
    18  
    19  _string_
    20  : [value]({{ '/reference/value.html' | relative_url }})
    21  
    22  A string operator concatenate string values, and return a string value.
    23  If each of operands is not a string value, the value is converted to a string value.
    24  
    25  If either of operands is null or conversion to string failed, return null.