Download logs from a dashboard does not work

[SSvilen]

Describe the bug
I have a dashboard with a logs panel, where logs are being displayed. If there are multiple data frames and I go to Inspect - Data and click Download logs, only the last data frame is being downloaded, regardless which data frame I select.
Download CSV seems to work normally.

To Reproduce
Steps to reproduce the behavior:

1. Create dashboard with log panel
2. Build a loki query, that contains data with different unique labels
3. Try to download the data

Expected behavior
Download logs should work exaclty like Download CSV.

[dannykopping]

@SSvilen just be aware I have transferred this issue to grafana/grafana, since Loki is just the database and not the Grafana plugin.

[SSvilen]

@dannykopping yeah, I thought that it may be belongs to grafana repo, but was not sure where the plugin is being developed.

[usmangt]

Hi @SSvilen,

Thanks for opening this case.

I tried to reproduce it but seems to be working fine. Can you please try to reproduce this same case on https://play.grafana.org/ ?

[gabor]

hi @SSvilen, currently the two buttons works slightly differently, download-csv downloads the selected dataframe, and download-logs downloads all the data (all the dataframes).

i agree this is confusing, i created an issue specially for this problem at #53742

for now, as a workaround, if you upgrade to grafana9, loki logs will always be in a single dataframe, so both the download-csv and the download-logs buttons will work the same way in that case. i hope that helps.

[SSvilen]

@gabor great, thanks.
If Grafana 9 uses single dataframe, that would do.