Merge branch 'master' of github.com:Altinity/clickhouse-grafana into …

…editor-fix
Altinity · Jun 25, 2024 · 1490cca · 1490cca
2 parents 44fa066 + ce12dab
commit 1490cca
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/datasource/sql_series.ts b/src/datasource/sql_series.ts
@@ -293,6 +293,11 @@ export default class SqlSeries {
       if (keyColumns.length > 0) {
         metricKey = keyColumns.map((name: string) => {
           const value = row[name];
+
+          if (typeof value === 'undefined') {
+            return undefined;
+          }
+
           if (typeof value === 'object') {
             return JSON.stringify(value);
           } else {