Why does this ‘Overall Sentiment’ query gives empty results: [image]

I copied directly from Sara’s post and ran it and received results: [image] Can you confirm if you have data in your classification_results table?

[image] Jordan Violet: I copied directly from Sara’s post and ran it I also just copied, pasted it as a ‘New Query’ and ran. No changes by me made at all. [image] Jordan Violet: Can you confirm if you have data in your classification_results table? From where do I need to look for thi…

[image] Bathinda Helper: No changes by me made at all. Did you change the dates that the query covered? Try refreshing the page and amending the date parameters if you haven’t already done so.

I’ve tried entering longer duration (and then 'Refresh) in the dashboard with no success: [image] And also changed dates in the query, with no success: [image] My site is approx/minimum 5 years old.

[image] Bathinda Helper: My site is approx/minimum 5 years old. Did you run a backfill? [image] Discourse AI - Sentiment :information_source: Once enabled, Sentiment will classify all new posts going forward. To classify all of your site’s historical posts, a backfill task must be run fro…

[image] Moin: Did you run a backfill? No. I didn’t. Nor did I read about this in (the first post of) this topic. Can u pls tell how do/can I do that? Or if I don’t run backfill, when will this component get enough posts to work out the sentiment?

That’s explained in the guide I quoted. When did you enable the sentiment analysis? You chose February 2024 as an end date in your data explorer query. Was the analysis enabled before that? Otherwise, since only new posts are classified, I’d expect it to return 0 results.

[image] Moin: That’s explained in the guide I quoted. Ok, I had missed, but now I’d surely study and solve the problem. Analysis was enabled in Feb or March, 2024, I don’t remember exact date. How many posts does it require (after its enabled, without running back-fill) to show something?

[image] Discourse AI - Sentiment Once enabled, Sentiment will classify all new posts going forward. To classify all of your site’s historical posts, a backfill task must be run from the console. I’m seeing ‘Site Sentiment’ in my Admin Dashboard for the past 2-3 months, but no sentiment is bein…

I’ve collected these up and split them into their own topic so they’re not cross-posted in multiple places. :+1:

Problems setting up Sentiment

Support

Falco (Falco) March 15, 2026, 6:13pm 18

Did you follow Self-Hosting Sentiment and Emotion for DiscourseAI ?

Topic		Replies	Views
Adding a backfill to Sentiment Analysis Feature completed , ai , ai-sentiment	3	361	November 11, 2023
Discourse AI - Sentiment Site Management how-to , ai , ai-sentiment , content	12	5711	October 24, 2025
Dashboard Report - Overall Sentiment Data & reporting ai , sql-query , dashboard-reports , ai-sentiment , dashboard-sql	2	815	July 3, 2025
Community Sentiment and Toxicity queries Data & reporting ai , sql-query	14	1220	November 13, 2024
Classification in the Discourse Sentiment Dashboard Support ai , ai-sentiment	7	114	June 10, 2026

Problems setting up Sentiment

Related topics