fix: add support for bool values in time series result (SigNoz#2713)

* fix: add support for bool values in time series result

* chore: reserved target column can never be bool so removed obsolete code

---------

Co-authored-by: Ankit Nayan <ankit@signoz.io>
Co-authored-by: Palash Gupta <palashgdev@gmail.com>

Author: 3 people

pkg/query-service/app/clickhouseReader/reader.go

@@ -4096,8 +4096,12 @@ func readRow(vars []interface{}, columnNames []string) ([]string, map[string]str
 				groupBy = append(groupBy, fmt.Sprintf("%v", reflect.ValueOf(v).Elem().Int()))
 				groupAttributes[colName] = fmt.Sprintf("%v", reflect.ValueOf(v).Elem().Int())
 			}
+		case *bool:
+			groupBy = append(groupBy, fmt.Sprintf("%v", *v))
+			groupAttributes[colName] = fmt.Sprintf("%v", *v)
+
 		default:
-			zap.S().Errorf("unsupported var type %v found in metric builder query result for column %s", v, colName)
+			zap.S().Errorf("unsupported var type %v found in query builder query result for column %s", v, colName)
 		}
 	}
 	return groupBy, groupAttributes, point
@@ -4424,4 +4428,4 @@ func (r *ClickHouseReader) GetSpanAttributeKeys(ctx context.Context) (map[string
 		response[tagKey] = key
 	}
 	return response, nil
-}
+}