fix: classify numeric columns as aggregation in readAsScalar

Pie charts and scalar panels break when ClickHouse queries use custom aggregation aliases (e.g. `count() AS total_requests`) because readAsScalar only recognised __result_N pattern columns as aggregations, returning columnType "group" for everything else. Apply the same fallback logic already used in readAsTimeSeries: if a column doesn't match an explicit marker (__result_N or a legacy alias), infer aggregation from numeric DB type. Closes #8844 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-28 21:00:32 +01:00 · 2026-05-27 11:39:35 +05:30
5 changed files with 9 additions and 4 deletions
--- a/deploy/docker-swarm/docker-compose.ha.yaml
+++ b/deploy/docker-swarm/docker-compose.ha.yaml
@@ -190,7 +190,7 @@ services:
      # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
  signoz:
    !!merge <<: *db-depend
-    image: signoz/signoz:v0.126.0
+    image: signoz/signoz:v0.125.1
    ports:
      - "8080:8080" # signoz port
    #   - "6060:6060"     # pprof port
--- a/deploy/docker-swarm/docker-compose.yaml
+++ b/deploy/docker-swarm/docker-compose.yaml
@@ -117,7 +117,7 @@ services:
      # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
  signoz:
    !!merge <<: *db-depend
-    image: signoz/signoz:v0.126.0
+    image: signoz/signoz:v0.125.1
    ports:
      - "8080:8080" # signoz port
    volumes:
--- a/deploy/docker/docker-compose.ha.yaml
+++ b/deploy/docker/docker-compose.ha.yaml
@@ -181,7 +181,7 @@ services:
      # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
  signoz:
    !!merge <<: *db-depend
-    image: signoz/signoz:${VERSION:-v0.126.0}
+    image: signoz/signoz:${VERSION:-v0.125.1}
    container_name: signoz
    ports:
      - "8080:8080" # signoz port
--- a/deploy/docker/docker-compose.yaml
+++ b/deploy/docker/docker-compose.yaml
@@ -109,7 +109,7 @@ services:
      # - ../common/clickhouse/storage.xml:/etc/clickhouse-server/config.d/storage.xml
  signoz:
    !!merge <<: *db-depend
-    image: signoz/signoz:${VERSION:-v0.126.0}
+    image: signoz/signoz:${VERSION:-v0.125.1}
    container_name: signoz
    ports:
      - "8080:8080" # signoz port
--- a/pkg/querier/consume.go
+++ b/pkg/querier/consume.go
@@ -292,6 +292,11 @@ func readAsScalar(rows driver.Rows, queryName string) (*qbtypes.ScalarData, erro
 		colType := qbtypes.ColumnTypeGroup
 		if aggRe.MatchString(name) {
 			colType = qbtypes.ColumnTypeAggregation
+		} else if slices.Contains(legacyReservedColumnTargetAliases, name) {
+			colType = qbtypes.ColumnTypeAggregation
+		} else if numericKind(colTypes[i].ScanType().Kind()) {
+			// Custom alias or unnamed aggregation: infer from numeric type.
+			colType = qbtypes.ColumnTypeAggregation
 		}
 		cd[i] = &qbtypes.ColumnDescriptor{
 			TelemetryFieldKey: telemetrytypes.TelemetryFieldKey{Name: name},