Topic on Help talk:CirrusSearch

Please see this thread. How to search for example for a specific string specifically in the source field?

Also how can one search for files from a specific uploader? (I'd like to check which of my video2commons uploads were imported below resolution at source.)

Unfortunately, the image description is simply an argument to a template. CirrusSearch doesn't do anything at that level and can't be that specific. Something like insource:kathmandu would require the wikitext source to have the word kathmandu in it, but it's not a great substitute.

Regarding filtering by uploader, I'm not too familiar with how the P170 there is structured, but with structured data available it seems plausible the appropriate information could be indexed. Today though P170 is indexed as a plain statement and does not include any context about it. The best workaround i could provide is that the Information template used on many images renders such that the searching for "Author <name>" , with the quotes, tends to bring up only pictures from them.

1. I don't know why but the results for insource:"kathmandu" don't seem to show the intended results
2. The uploader username is not in the structured data
3. The link you shared only shows original works by that username
4. So I will create an issue for enabling showing uploads by a particular user (please let me know if this could/should be changed in a tool other than CirrusSearch)
5. I think the best workaround currently would be to use insource with the field name first so for example I searched for insource:"|source=[https://soundcloud.com to identify files for c:Category:Audio files from Soundcloud.com. I think easily searching fields of the File pages' Information template could be enabled by
   1. Developing some regex that searches for any content after e.g. |source=
   2. Creating some alias for it so instead of writing some complex regex query every time one can simply enter e.g. info-source:"soundcloud.com"

{{user|keith_d}}

A problem with searching the information template fields for things like author is that author also appears in the {{tl|Credit line}} template and the 2 could be different.

I first misunderstood what you were saying but understood it via your comment in your proposal. That's may be an issue for other templates, but I think in that case it doesn't matter because it would also contain the same author name so it would even be best if both fields are searched (actually it would be a problem if it doesn't search both fields).