fix: FluxRecord.Table() returns value of the table column (#301)

CHANGELOG.md

@@ -1,10 +1,11 @@
 ## unreleased
 ### Features 
-- [#297](https://github.com/influxdata/influxdb-client-go/pull/297),[#298](https://github.com/influxdata/influxdb-client-go/pull/298) Optimized `WriteRecord` of [WriteAPIBlocking](https://pkg.go.dev/github.com/influxdata/influxdb-client-go/v2/api#WriteAPIBlocking). 
+- [#297](https://github.com/influxdata/influxdb-client-go/pull/297),[#298](https://github.com/influxdata/influxdb-client-go/pull/298) Optimized `WriteRecord` of [WriteAPIBlocking](https://pkg.go.dev/github.com/influxdata/influxdb-client-go/v2/api#WriteAPIBlocking). Custom batch can be written by single argument. 
 
 ### Bug fixes
 - [#294](https://github.com/influxdata/influxdb-client-go/pull/294)  `WritePoint` and `WriteRecord` of [WriteAPIBlocking](https://pkg.go.dev/github.com/influxdata/influxdb-client-go/v2/api#WriteAPIBlocking) returns always full error information.
-
+- [300](https://github.com/influxdata/influxdb-client-go/pull/300) Closing the response body after write batch.
+- [302](https://github.com/influxdata/influxdb-client-go/pull/302) FluxRecord.Table() returns value of the table column.
 
 ## 2.6.0[2021-11-26]
 ### Features

api/query/table.go

@@ -7,6 +7,7 @@ package query
 
 import (
 	"fmt"
+	"sort"
 	"strings"
 	"time"
 )
@@ -146,9 +147,10 @@ func NewFluxRecord(table int, values map[string]interface{}) *FluxRecord {
 	return &FluxRecord{table: table, values: values}
 }
 
-// Table returns index of the table record belongs to
+// Table returns value of the table column
+// It returns zero if the table column is not found
 func (r *FluxRecord) Table() int {
-	return r.table
+	return int(intValue(r.values, "table"))
 }
 
 // Start returns the inclusive lower time bound of all records in the current table.
@@ -204,15 +206,23 @@ func (r *FluxRecord) ValueByKey(key string) interface{} {
 
 // String returns FluxRecord string dump
 func (r *FluxRecord) String() string {
-	var buffer strings.Builder
+	if len(r.values) == 0 {
+		return ""
+	}
+
 	i := 0
-	for k, v := range r.values {
-		if i > 0 {
-			buffer.WriteString(",")
-		}
-		buffer.WriteString(fmt.Sprintf("%s:%v", k, v))
+	keys := make([]string, len(r.values))
+	for k := range r.values {
+		keys[i] = k
 		i++
 	}
+	sort.Strings(keys)
+	var buffer strings.Builder
+	buffer.WriteString(fmt.Sprintf("%s:%v", keys[0], r.values[keys[0]]))
+	for _, k := range keys[1:] {
+		buffer.WriteString(",")
+		buffer.WriteString(fmt.Sprintf("%s:%v", k, r.values[k]))
+	}
 	return buffer.String()
 }
 
@@ -227,7 +237,7 @@ func timeValue(values map[string]interface{}, key string) time.Time {
 	return time.Time{}
 }
 
-// timeValue returns string value from values map according to the key
+// stringValue returns string value from values map according to the key
 // Empty string is returned if key is not found
 func stringValue(values map[string]interface{}, key string) string {
 	if val, ok := values[key]; ok {
@@ -237,3 +247,14 @@ func stringValue(values map[string]interface{}, key string) string {
 	}
 	return ""
 }
+
+// intValue returns int64 value from values map according to the key
+// Zero value is returned if key is not found
+func intValue(values map[string]interface{}, key string) int64 {
+	if val, ok := values[key]; ok {
+		if i, ok := val.(int64); ok {
+			return i
+		}
+	}
+	return 0
+}

api/query/table_test.go

@@ -70,7 +70,7 @@ func TestRecord(t *testing.T) {
 	record := &FluxRecord{table: 2,
 		values: map[string]interface{}{
 			"result":       "_result",
-			"_table":       int64(0),
+			"table":        int64(2),
 			"_start":       mustParseTime("2020-02-17T22:19:49.747562847Z"),
 			"_stop":        mustParseTime("2020-02-18T22:19:49.747562847Z"),
 			"_time":        mustParseTime("2020-02-18T10:34:08.135814545Z"),

api/query_test.go

@@ -35,8 +35,8 @@ func TestQueryCVSResultSingleTable(t *testing.T) {
 #group,false,false,true,true,false,false,true,true,true,true
 #default,_result,,,,,,,,,
 ,result,table,_start,_stop,_time,_value,_field,_measurement,a,b
-,,0,2020-02-17T22:19:49.747562847Z,2020-02-18T22:19:49.747562847Z,2020-02-18T10:34:08.135814545Z,1.4,f,test,1,adsfasdf
-,,0,2020-02-17T22:19:49.747562847Z,2020-02-18T22:19:49.747562847Z,2020-02-18T22:08:44.850214724Z,6.6,f,test,1,adsfasdf
+,,1,2020-02-17T22:19:49.747562847Z,2020-02-18T22:19:49.747562847Z,2020-02-18T10:34:08.135814545Z,1.4,f,test,1,adsfasdf
+,,1,2020-02-17T22:19:49.747562847Z,2020-02-18T22:19:49.747562847Z,2020-02-18T22:08:44.850214724Z,6.6,f,test,1,adsfasdf
 
 `
 	expectedTable := query.NewFluxTableMetadataFull(0,
@@ -56,7 +56,7 @@ func TestQueryCVSResultSingleTable(t *testing.T) {
 	expectedRecord1 := query.NewFluxRecord(0,
 		map[string]interface{}{
 			"result":       "_result",
-			"table":        int64(0),
+			"table":        int64(1),
 			"_start":       mustParseTime("2020-02-17T22:19:49.747562847Z"),
 			"_stop":        mustParseTime("2020-02-18T22:19:49.747562847Z"),
 			"_time":        mustParseTime("2020-02-18T10:34:08.135814545Z"),
@@ -71,7 +71,7 @@ func TestQueryCVSResultSingleTable(t *testing.T) {
 	expectedRecord2 := query.NewFluxRecord(0,
 		map[string]interface{}{
 			"result":       "_result",
-			"table":        int64(0),
+			"table":        int64(1),
 			"_start":       mustParseTime("2020-02-17T22:19:49.747562847Z"),
 			"_stop":        mustParseTime("2020-02-18T22:19:49.747562847Z"),
 			"_time":        mustParseTime("2020-02-18T22:08:44.850214724Z"),
@@ -100,6 +100,8 @@ func TestQueryCVSResultSingleTable(t *testing.T) {
 	assert.False(t, queryResult.tableChanged)
 	require.NotNil(t, queryResult.Record())
 	require.Equal(t, queryResult.Record(), expectedRecord2)
+	assert.Equal(t, "_result", queryResult.Record().Result())
+	assert.Equal(t, 1, queryResult.Record().Table())
 
 	require.False(t, queryResult.Next())
 	require.Nil(t, queryResult.Err())
@@ -383,6 +385,7 @@ func TestQueryCVSResultMultiTables(t *testing.T) {
 	require.NotNil(t, queryResult.Record())
 	require.Equal(t, queryResult.Record(), expectedRecord42)
 	assert.Equal(t, "_result4", queryResult.Record().Result())
+	assert.Equal(t, 3, queryResult.Record().Table())
 
 	require.False(t, queryResult.Next())
 	require.Nil(t, queryResult.Err())