An array of names to use for the columns in the transformed log event.
The character used to separate each column in the original comma-separated value log event. If you omit this, the processor looks for the comma , character as the delimiter.
,
The character used used as a text qualifier for a single column of data. If you omit this, the double quotation mark " character is used.
"
The path to the field in the log event that has the comma separated values to be parsed. If you omit this value, the whole log message is processed.