${__field.Name}: References the field name of the clicked value.
As shown below, clicking 8.4s triggers the redirect URL embedded with the ${__field.Name} variable, which will reference the field name of the value, that is, populate timecost in the URL.

${__value.raw}: References the clicked value (populated in the original format).
As shown below, clicking 8.4s triggers the redirect URL embedded with the ${__value.raw} variable, which will reference the raw data of the clicked value, that is, the value 8.4125 without unit or decimal place processing.

${__value.Text}: References the clicked value (populated in the string format).
As shown below, clicking 2020-10-27 17:21:00 triggers the redirect URL embedded with the ${__value.Text} variable, which will reference the clicked value and convert it into a string, that is, 2020-10-27%2017:21:00 (here, %20 is a URL-encoded space).

${__value.Numeric}: References the clicked value (populated in the numeric format).
As shown below, clicking 8.4s triggers the redirect URL embedded with the ${__value.Numeric} variable, which will reference the clicked value and convert it into a number, that is 8.4125. Here, a time value will be converted into a Unix timestamp in the numeric format, and a string value will fail to be referenced.

${__value.Time}: The timestamp of the clicked value (populated in the Unix time format).
As shown below, clicking 8.4s triggers the redirect URL embedded with the ${__value.Time} variable, which will reference the timestamp in the same line as the clicked value, that is, 2022-10-27 17:21:00 of analytic_time. The value will be further converted into the Unix format and populated as 1666891260000. If there is no such timestamp, reference will fail.

${__Fields.specific field}: Field value in the same line.
As shown below, clicking 8.4s triggers the redirect URL embedded with the ${__Fields.protocol_type} variable, which will reference the field value in the same line as the clicked value, that is, http2 of protocol_type.
https://console.tencentcloud.com/cls/search?region=xxxxxxx&topic_id=xxxxxxxx&query=server_addr:${__value.text} AND status:[400 TO 499]&time=now-1h,now
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