chore: add related values

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

@@ -51,6 +51,9 @@ const (
 	defaultTraceLocalTableName  string = "signoz_index_v3"
 	defaultTraceResourceTableV3 string = "distributed_traces_v3_resource"
 	defaultTraceSummaryTable    string = "distributed_trace_summary"
+
+	defaultMetadataDB    string = "signoz_metadata"
+	defaultMetadataTable string = "distributed_attributes_metadata"
 )
 
 // NamespaceConfig is Clickhouse's internal configuration data
@@ -94,6 +97,9 @@ type namespaceConfig struct {
 	TraceLocalTableNameV3 string
 	TraceResourceTableV3  string
 	TraceSummaryTable     string
+
+	MetadataDB    string
+	MetadataTable string
 }
 
 // Connecto defines how to connect to the database
@@ -192,6 +198,9 @@ func NewOptions(
 			TraceLocalTableNameV3: defaultTraceLocalTableName,
 			TraceResourceTableV3:  defaultTraceResourceTableV3,
 			TraceSummaryTable:     defaultTraceSummaryTable,
+
+			MetadataDB:    defaultMetadataDB,
+			MetadataTable: defaultMetadataTable,
 		},
 		others: make(map[string]*namespaceConfig, len(otherNamespaces)),
 	}

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

@@ -156,6 +156,9 @@ type ClickHouseReader struct {
 	traceLocalTableName  string
 	traceResourceTableV3 string
 	traceSummaryTable    string
+
+	metadataDB    string
+	metadataTable string
 }
 
 // NewTraceReader returns a TraceReader for the database
@@ -276,6 +279,9 @@ func NewReaderFromClickhouseConnection(
 		traceTableName:       traceTableName,
 		traceResourceTableV3: options.primary.TraceResourceTableV3,
 		traceSummaryTable:    options.primary.TraceSummaryTable,
+
+		metadataDB:    options.primary.MetadataDB,
+		metadataTable: options.primary.MetadataTable,
 	}
 }
 
@@ -3610,6 +3616,62 @@ func (r *ClickHouseReader) GetLogAttributeKeys(ctx context.Context, req *v3.Filt
 	return &response, nil
 }
 
+func (r *ClickHouseReader) FetchRelatedValues(ctx context.Context, req *v3.FilterAttributeValueRequest) ([]string, error) {
+	var conditions []string
+
+	if len(req.SelectedAttributeValues) != 0 {
+		for _, item := range req.SelectedAttributeValues {
+			fmtVal := utils.ClickHouseFormattedValue(item.Value)
+			var colName string
+			switch item.Key.Type {
+			case v3.AttributeKeyTypeResource:
+				colName = "resource_attributes"
+			case v3.AttributeKeyTypeTag:
+				colName = "attributes"
+			default:
+				colName = "attributes"
+			}
+			conditions = append(conditions, fmt.Sprintf("mapContains(%s, '%s') AND %s['%s'] IN %s", colName, item.Key.Key, colName, item.Key.Key, fmtVal))
+		}
+	}
+	whereClause := strings.Join(conditions, " OR ")
+
+	var selectColumn string
+	switch req.TagType {
+	case v3.TagTypeResource:
+		selectColumn = "resource_attributes" + "['" + req.FilterAttributeKey + "']"
+	case v3.TagTypeTag:
+		selectColumn = "attributes" + "['" + req.FilterAttributeKey + "']"
+	default:
+		selectColumn = "attributes" + "['" + req.FilterAttributeKey + "']"
+	}
+
+	filterSubQuery := fmt.Sprintf(
+		"SELECT DISTINCT %s FROM %s.%s WHERE %s",
+		selectColumn,
+		r.metadataDB,
+		r.metadataTable,
+		whereClause,
+	)
+
+	rows, err := r.db.Query(ctx, filterSubQuery)
+	if err != nil {
+		return nil, fmt.Errorf("error while executing query: %s", err.Error())
+	}
+	defer rows.Close()
+
+	var attributeValues []string
+	for rows.Next() {
+		var value string
+		if err := rows.Scan(&value); err != nil {
+			return nil, fmt.Errorf("error while scanning rows: %s", err.Error())
+		}
+		attributeValues = append(attributeValues, value)
+	}
+
+	return attributeValues, nil
+}
+
 func (r *ClickHouseReader) GetLogAttributeValues(ctx context.Context, req *v3.FilterAttributeValueRequest) (*v3.FilterAttributeValueResponse, error) {
 	var err error
 	var filterValueColumn string
@@ -3711,6 +3773,11 @@ func (r *ClickHouseReader) GetLogAttributeValues(ctx context.Context, req *v3.Fi
 		}
 	}
 
+	relatedValues, _ := r.FetchRelatedValues(ctx, req)
+	attributeValues.RelatedValues = &v3.FilterAttributeValueResponse{
+		StringAttributeValues: relatedValues,
+	}
+
 	return &attributeValues, nil
 
 }

pkg/query-service/app/parser.go

@@ -740,7 +740,8 @@ func parseFilterAttributeValueRequest(r *http.Request) (*v3.FilterAttributeValue
 	filterAttributeKeyDataType := v3.AttributeKeyDataType(r.URL.Query().Get("filterAttributeKeyDataType")) // can be empty
 	aggregateAttribute := r.URL.Query().Get("aggregateAttribute")
 	tagType := v3.TagType(r.URL.Query().Get("tagType")) // can be empty
-
+	selectedAttributeValuesStr := r.URL.Query().Get("selectedAttributeValues")
+	metricNamesStr := r.URL.Query().Get("metricNames")
 	limit, err := strconv.Atoi(r.URL.Query().Get("limit"))
 	if err != nil {
 		limit = 50
@@ -756,6 +757,24 @@ func parseFilterAttributeValueRequest(r *http.Request) (*v3.FilterAttributeValue
 		}
 	}
 
+	// parse json string to []FilterItem
+	var selectedAttributeValues []v3.FilterItem
+	if len(selectedAttributeValuesStr) > 0 {
+		err := json.Unmarshal([]byte(selectedAttributeValuesStr), &selectedAttributeValues)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// parse json string to []string
+	var metricNames []string
+	if len(metricNamesStr) > 0 {
+		err := json.Unmarshal([]byte(metricNamesStr), &metricNames)
+		if err != nil {
+			return nil, err
+		}
+	}
+
 	req = v3.FilterAttributeValueRequest{
 		DataSource:                 dataSource,
 		AggregateOperator:          aggregateOperator,
@@ -765,6 +784,8 @@ func parseFilterAttributeValueRequest(r *http.Request) (*v3.FilterAttributeValue
 		SearchText:                 r.URL.Query().Get("searchText"),
 		FilterAttributeKey:         r.URL.Query().Get("attributeKey"),
 		FilterAttributeKeyDataType: filterAttributeKeyDataType,
+		SelectedAttributeValues:    selectedAttributeValues,
+		MetricNames:                metricNames,
 	}
 	return &req, nil
 }

pkg/query-service/model/v3/v3.go

@@ -305,6 +305,8 @@ type FilterAttributeValueRequest struct {
 	TagType                    TagType              `json:"tagType"`
 	SearchText                 string               `json:"searchText"`
 	Limit                      int                  `json:"limit"`
+	SelectedAttributeValues    []FilterItem         `json:"selectedAttributeValues"`
+	MetricNames                []string             `json:"metricNames"`
 }
 
 type AggregateAttributeResponse struct {
@@ -368,6 +370,8 @@ type FilterAttributeValueResponse struct {
 	StringAttributeValues []string      `json:"stringAttributeValues"`
 	NumberAttributeValues []interface{} `json:"numberAttributeValues"`
 	BoolAttributeValues   []bool        `json:"boolAttributeValues"`
+
+	RelatedValues *FilterAttributeValueResponse `json:"relatedValues"`
 }
 
 type QueryRangeParamsV3 struct {