Error of coincident broken lines

[lvyingjie13241]

It was expected to be multiple distinct line graphs, but now they have been recognized as one.
what should i do ?

[lvyingjie13241]

Another issue is that what was correct before is no longer acceptable now.

[jangaraj]

You must group (GROUP BY statement) by that metric column, when you want to have timeseries per metric.

[lvyingjie13241]

like this ? it can`t be resolved

[jangaraj]

Because you don’t format it as timeseries:

[lvyingjie13241]

thank you very much !problem has been solved！
Can I add you on WeChat?