@Greptime: Same SQL in a panel and in an alert rule. That didn't work before. Grafana evaluates alert rules on the server, where a…
Summary
GreptimeDB's Grafana plugin has been upgraded to v3.0.3, adding a Go backend to enable SQL macro interpolation in alert rules, allowing consistent queries in both panels and alerts.
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Cached at: 08/20/26, 12:55 PM
Same SQL in a panel and in an alert rule. That didn’t work before.
Grafana evaluates alert rules on the server, where a frontend-only plugin’s macro interpolation never runs. So GreptimeDB panel queries were dashboard-only, no matter how correct they were.
The plugin now ships a Go backend. Macros are parsed and expanded server-side:
$__timeFilter(col) → col >=
Same query, panel or alert condition. Existing dashboards are unaffected; the plugin runs a backend process now, so restart Grafana after upgrading.
v3.0.3: https://greptime.com/blogs/2026-08-20-greptimedb-grafana-plugin-backend-upgrade…
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Grafana is an open-source platform for monitoring and observability, allowing users to query, visualize, alert on, and understand metrics from various data sources.