wu-sheng commented on code in PR #11194: URL: https://github.com/apache/skywalking/pull/11194#discussion_r1287880664
########## docs/en/api/metrics-query-expression.md: ########## @@ -206,3 +206,22 @@ aggregate_labels(total_commands_rate, SUM) ### Result Type The ExpressionResultType of the aggregateLabels operation is TIME_SERIES_VALUES. + +## ViewAsSequence Operation +ViewAsSequence operation represents the first not-null metric from the listing metrics in the given prioritized sequence(left to right). It could also be considered as a `short-circuit` of given metrics for the first value existing metric. Review Comment: `isEmptyValue` actually `non-null`, because we were using `0` to represent null, which had been changed. So, this is `isEmptyValue` flag. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
