Issues

• PromQL label lookups fail on TimeSeries tables created by ClickHouse 26.10 (schema version 8)

  external
  ClickHouse/ClickStack#3580 · Filter by author bcanvural opened on Nov 6, 2026

• missed evaluation in raw SQL alerts compare multi-window results to a single window threshold

  bugNeeds Feedback
  ClickHouse/ClickStack#3578 · Filter by author tommyzli opened on Nov 5, 2026

• Maintain relative date selection for saved/linked searches

  enhancementexternalImprovement
  ClickHouse/ClickStack#3567 · Filter by author czephyr opened on Nov 5, 2026
  4

• emerging_signals: compare both windows in one Drain tree, and report new variants of baseline patterns

  external
  ClickHouse/ClickStack#3556 · Filter by author bcanvural opened on Nov 4, 2026

• emerging_signals reports dated log lines as both "new" and "gone": Drain keeps the literal date, and each window is mined separately

  external
  ClickHouse/ClickStack#3544 · Filter by author bcanvural opened on Nov 4, 2026
  2

• MCP builder tools return wrong results without an error: min/max of a DateTime is 0, and unknown options such as having are silently ignored

  external
  ClickHouse/ClickStack#3543 · Filter by author bcanvural opened on Nov 4, 2026

• MCP response trimming replaces the largest values whole (often the top result) and ignores topN; clickstack_table has no limit, having or default order

  external
  ClickHouse/ClickStack#3542 · Filter by author bcanvural opened on Nov 4, 2026
  1

• Log and trace charts read the whole attribute map for GROUP BY and aggregates, even when a materialized column exists

  external
  ClickHouse/ClickStack#3539 · Filter by author bcanvural opened on Nov 4, 2026
  

• Timestamp-only SELECT could open the wrong event

  bugexternalNeeds Feedback
  ClickHouse/ClickStack#3518 · Filter by author libbkmz opened on Nov 2, 2026
  4

• Metric charts read data points flagged "no recorded value" (Prometheus staleness markers) as zeros

  external
  ClickHouse/ClickStack#3511 · Filter by author bcanvural opened on Nov 1, 2026
  1

• Grouped alerts: getPreviousAlertHistories reads every history row of the last 7 days, so check-alerts slows down and runs out of memory as history grows

  external
  ClickHouse/ClickStack#3508 · Filter by author bcanvural opened on Oct 31, 2026
  1

• Series limit isn't applied in SQL for metric charts: every series is fetched, then capped in the browser

  external
  ClickHouse/ClickStack#3502 · Filter by author bcanvural opened on Oct 30, 2026

• Formula over a sum/gauge select and a histogram select gives 0 or null when the chart has a group-by

  external
  ClickHouse/ClickStack#3501 · Filter by author bcanvural opened on Oct 30, 2026

• Number tile on a gauge changes with the time range: sum adds up every sample in short ranges

  external
  ClickHouse/ClickStack#3500 · Filter by author bcanvural opened on Oct 30, 2026
  1

• Metric selects ignore valueExpression: gauge and sum charts always aggregate the raw value

  external
  ClickHouse/ClickStack#3499 · Filter by author bcanvural opened on Oct 30, 2026
  1

• Include the geoip processor in clickstack-otel-collector

  enhancementexternalNeeds Feedback
  ClickHouse/ClickStack#3494 · Filter by author s-summers opened on Oct 30, 2026

• Security hardening: Next.js patch release, MCP SDK advisories, pre-auth body size, CSP, readonly gaps

  external
  ClickHouse/ClickStack#3491 · Filter by author jplorier opened on Oct 29, 2026

• Materialized views for cumulative metrics (counter increase/rate, histograms)

  external
  ClickHouse/ClickStack#3483 · Filter by author bcanvural opened on Oct 28, 2026

• Materialized view support for Metric sources (gauges)

  external
  ClickHouse/ClickStack#3482 · Filter by author bcanvural opened on Oct 28, 2026
  9

• Metric chart with aggFn increase and a multi-column group-by fails: toString() gets several arguments

  external
  ClickHouse/ClickStack#3477 · Filter by author bcanvural opened on Oct 26, 2026
  1

• Silence and unsilence alerts through the external API v2

  external
  ClickHouse/ClickStack#3469 · Filter by author andrewdunndev opened on Oct 25, 2026
  2

• Filter sidebar ServiceName values are incomplete — unordered LIMIT sample misses services as ingest volume grows

  bugexternalNeeds Feedback
  ClickHouse/ClickStack#3465 · Filter by author routayush1 opened on Oct 24, 2026
  1

• Fixedstring type for SpanId and ParentId traces for better compression

  enhancementexternalNeeds Feedback
  ClickHouse/ClickStack#3454 · Filter by author czephyr opened on Oct 23, 2026
  2

• Collector auth enforcement doesn't cover the fluentforward receiver (port 24225)

  bugexternalNeeds Feedback
  ClickHouse/ClickStack#3453 · Filter by author Aryainguz opened on Oct 23, 2026
  1

• Slack notifications for inline alerts fail when the chart-explorer link passes Slack's 3000-character block limit

  alertingbugexternal
  ClickHouse/ClickStack#3452 · Filter by author jorik opened on Oct 23, 2026