Can we use " :: " as a separator in csv filter in logstash

Can we use following csv filter:
I cannot test this directly in our system.

csv {
                                  columns => [ "LogLevel", "DateTime", "RequestID", "LogMessage" ]
                                    separator => " :: "
                                    skip_header => "false"
                                }


Tested with 7.9

input {
  generator {
    lines => [
     'LogLevel :: DateTime :: RequestID :: LogMessage'
    ]
    count => 1
    codec => "line"
  }
}
filter {
    csv {
        columns => [ "LogLevel", "DateTime", "RequestID", "LogMessage" ]
        separator => " :: "
        skip_header => "false"
    }
}
output {
  stdout { codec =>  "rubydebug" }
}

Output

{
      "DateTime" => "DateTime",
     "RequestID" => "RequestID",
      "@version" => "1",
    "@timestamp" => 2020-08-31T16:46:36.698Z,
          "host" => "MacBook-Pro.domain",
      "LogLevel" => "LogLevel",
       "message" => "LogLevel :: DateTime :: RequestID :: LogMessage",
    "LogMessage" => "LogMessage"
}

So the answer is yes.

Thanks. You are awesome. Just one last thing - I guess I will have to install logstash on my machine to test this. How do I test this after installing logstash - what commands, configuration?

Get the download and follow the steps.

The -f filename.conf is the only part you need to change. Which is the path to the .conf file you create.