[PARSER]
    Name        squid_parser
    Format      regex
    # Regex adapted to the real log format (with User-Agent in quotes)
    Regex       ^(?<time>\S+)\s+(?<client_ip>\S+)\s+(?<status_code>\S+)\s+(?<response_size>\S+)\s+(?<method>\S+)\s+(?<url>\S+)\s+"(?<user_agent>[^"]*)"$
    # Indicates which field contains the timestamp
    Time_Key    time
    # Indicates the time format (Unix timestamp with milliseconds)
    Time_Format %s.%L
    # Automatically converts types
    Types       response_size:integer