fix(influxdb): quote number valued tag values, only not quote when operator is > or <, fixes #4885

public/app/plugins/datasource/influxdb/influx_query.ts

@@ -152,7 +152,7 @@ export default class InfluxQuery {
       if (interpolate) {
         value = this.templateSrv.replace(value, this.scopedVars);
       }
-      if (isNaN(+value)) {
+      if (operator !== '>' && operator !== '<') {
         value = "'" + value.replace('\\', '\\\\') + "'";
       }
     } else if (interpolate){

public/app/plugins/datasource/influxdb/specs/influx_query_specs.ts

@@ -101,6 +101,19 @@ describe('InfluxQuery', function() {
     });
   });
 
+  describe('query with value condition', function() {
+    it('should not quote value', function() {
+      var query = new InfluxQuery({
+        measurement: 'cpu',
+        groupBy: [],
+        tags: [{key: 'value', value: '5', operator: '>'}]
+      }, templateSrv, {});
+
+      var queryText = query.render();
+      expect(queryText).to.be('SELECT mean("value") FROM "cpu" WHERE "value" > 5 AND $timeFilter');
+    });
+  });
+
   describe('series with groupByTag', function() {
     it('should generate correct query', function() {
       var query = new InfluxQuery({