Dashboard: replace datasource name with a reference object (#33817)

Co-authored-by: Torkel Ödegaard <torkel@grafana.com>
Co-authored-by: Elfo404 <me@giordanoricci.com>

public/app/plugins/datasource/postgres/datasource.ts

@@ -64,7 +64,7 @@ export class PostgresDatasource extends DataSourceWithBackend<PostgresQuery, Pos
       expandedQueries = queries.map((query) => {
         const expandedQuery = {
           ...query,
-          datasource: this.name,
+          datasource: this.getRef(),
           rawSql: this.templateSrv.replace(query.rawSql, scopedVars, this.interpolateVariable),
           rawQuery: true,
         };