572 lines
19 KiB
Go
572 lines
19 KiB
Go
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package v3
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import (
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"fmt"
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"strings"
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"go.signoz.io/signoz/pkg/query-service/constants"
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v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
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"go.signoz.io/signoz/pkg/query-service/utils"
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)
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var aggregateOperatorToPercentile = map[v3.AggregateOperator]float64{
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v3.AggregateOperatorP05: 0.05,
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v3.AggregateOperatorP10: 0.10,
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v3.AggregateOperatorP20: 0.20,
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v3.AggregateOperatorP25: 0.25,
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v3.AggregateOperatorP50: 0.50,
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v3.AggregateOperatorP75: 0.75,
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v3.AggregateOperatorP90: 0.90,
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v3.AggregateOperatorP95: 0.95,
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v3.AggregateOperatorP99: 0.99,
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}
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var aggregateOperatorToSQLFunc = map[v3.AggregateOperator]string{
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v3.AggregateOperatorAvg: "avg",
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v3.AggregateOperatorMax: "max",
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v3.AggregateOperatorMin: "min",
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v3.AggregateOperatorSum: "sum",
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v3.AggregateOperatorRateSum: "sum",
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v3.AggregateOperatorRateAvg: "avg",
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v3.AggregateOperatorRateMax: "max",
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v3.AggregateOperatorRateMin: "min",
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}
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var logOperators = map[v3.FilterOperator]string{
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v3.FilterOperatorEqual: "=",
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v3.FilterOperatorNotEqual: "!=",
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v3.FilterOperatorLessThan: "<",
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v3.FilterOperatorLessThanOrEq: "<=",
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v3.FilterOperatorGreaterThan: ">",
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v3.FilterOperatorGreaterThanOrEq: ">=",
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v3.FilterOperatorLike: "ILIKE",
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v3.FilterOperatorNotLike: "NOT ILIKE",
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v3.FilterOperatorContains: "ILIKE",
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v3.FilterOperatorNotContains: "NOT ILIKE",
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v3.FilterOperatorRegex: "match(%s, %s)",
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v3.FilterOperatorNotRegex: "NOT match(%s, %s)",
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v3.FilterOperatorIn: "IN",
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v3.FilterOperatorNotIn: "NOT IN",
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v3.FilterOperatorExists: "has(%s_%s_key, '%s')",
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v3.FilterOperatorNotExists: "not has(%s_%s_key, '%s')",
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}
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const BODY = "body"
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func getClickhouseLogsColumnType(columnType v3.AttributeKeyType) string {
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if columnType == v3.AttributeKeyTypeTag {
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return "attributes"
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}
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return "resources"
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}
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func getClickhouseLogsColumnDataType(columnDataType v3.AttributeKeyDataType) string {
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if columnDataType == v3.AttributeKeyDataTypeFloat64 {
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return "float64"
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}
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if columnDataType == v3.AttributeKeyDataTypeInt64 {
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return "int64"
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}
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if columnDataType == v3.AttributeKeyDataTypeBool {
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return "bool"
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}
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return "string"
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}
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// getClickhouseColumnName returns the corresponding clickhouse column name for the given attribute/resource key
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func getClickhouseColumnName(key v3.AttributeKey) string {
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clickhouseColumn := key.Key
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if key.Key == constants.TIMESTAMP || key.Key == "id" {
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return key.Key
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}
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//if the key is present in the topLevelColumn then it will be only searched in those columns,
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//regardless if it is indexed/present again in resource or column attribute
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if !key.IsColumn {
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columnType := getClickhouseLogsColumnType(key.Type)
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columnDataType := getClickhouseLogsColumnDataType(key.DataType)
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clickhouseColumn = fmt.Sprintf("%s_%s_value[indexOf(%s_%s_key, '%s')]", columnType, columnDataType, columnType, columnDataType, key.Key)
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return clickhouseColumn
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}
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// check if it is a static field
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if key.Type == v3.AttributeKeyTypeUnspecified {
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// name is the column name
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return clickhouseColumn
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}
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// materialized column created from query
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clickhouseColumn = utils.GetClickhouseColumnName(string(key.Type), string(key.DataType), key.Key)
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return clickhouseColumn
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}
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// getSelectLabels returns the select labels for the query based on groupBy and aggregateOperator
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func getSelectLabels(aggregatorOperator v3.AggregateOperator, groupBy []v3.AttributeKey) string {
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var selectLabels string
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if aggregatorOperator == v3.AggregateOperatorNoOp {
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selectLabels = ""
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} else {
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for _, tag := range groupBy {
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columnName := getClickhouseColumnName(tag)
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selectLabels += fmt.Sprintf(" %s as `%s`,", columnName, tag.Key)
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}
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}
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return selectLabels
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}
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func getSelectKeys(aggregatorOperator v3.AggregateOperator, groupBy []v3.AttributeKey) string {
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var selectLabels []string
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if aggregatorOperator == v3.AggregateOperatorNoOp {
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return ""
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} else {
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for _, tag := range groupBy {
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selectLabels = append(selectLabels, "`"+tag.Key+"`")
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}
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}
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return strings.Join(selectLabels, ",")
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}
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func GetExistsNexistsFilter(op v3.FilterOperator, item v3.FilterItem) string {
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if item.Key.Type == v3.AttributeKeyTypeUnspecified {
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top := "!="
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if op == v3.FilterOperatorNotExists {
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top = "="
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}
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if val, ok := constants.StaticFieldsLogsV3[item.Key.Key]; ok {
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// skip for timestamp and id
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if val.Key == "" {
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return ""
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}
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columnName := getClickhouseColumnName(item.Key)
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if val.DataType == v3.AttributeKeyDataTypeString {
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return fmt.Sprintf("%s %s ''", columnName, top)
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} else {
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// we just have two types, number and string
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return fmt.Sprintf("%s %s 0", columnName, top)
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}
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}
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} else if item.Key.IsColumn {
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val := true
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if op == v3.FilterOperatorNotExists {
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val = false
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}
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return fmt.Sprintf("%s_exists`=%v", strings.TrimSuffix(getClickhouseColumnName(item.Key), "`"), val)
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}
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columnType := getClickhouseLogsColumnType(item.Key.Type)
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columnDataType := getClickhouseLogsColumnDataType(item.Key.DataType)
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return fmt.Sprintf(logOperators[op], columnType, columnDataType, item.Key.Key)
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}
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func buildLogsTimeSeriesFilterQuery(fs *v3.FilterSet, groupBy []v3.AttributeKey, aggregateAttribute v3.AttributeKey) (string, error) {
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var conditions []string
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if fs != nil && len(fs.Items) != 0 {
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for _, item := range fs.Items {
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if item.Key.IsJSON {
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filter, err := GetJSONFilter(item)
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if err != nil {
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return "", err
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}
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conditions = append(conditions, filter)
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continue
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}
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op := v3.FilterOperator(strings.ToLower(strings.TrimSpace(string(item.Operator))))
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var value interface{}
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var err error
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if op != v3.FilterOperatorExists && op != v3.FilterOperatorNotExists {
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value, err = utils.ValidateAndCastValue(item.Value, item.Key.DataType)
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if err != nil {
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return "", fmt.Errorf("failed to validate and cast value for %s: %v", item.Key.Key, err)
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}
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}
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if logsOp, ok := logOperators[op]; ok {
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switch op {
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case v3.FilterOperatorExists, v3.FilterOperatorNotExists:
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conditions = append(conditions, GetExistsNexistsFilter(op, item))
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case v3.FilterOperatorRegex, v3.FilterOperatorNotRegex:
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columnName := getClickhouseColumnName(item.Key)
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fmtVal := utils.ClickHouseFormattedValue(value)
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conditions = append(conditions, fmt.Sprintf(logsOp, columnName, fmtVal))
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case v3.FilterOperatorContains, v3.FilterOperatorNotContains:
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columnName := getClickhouseColumnName(item.Key)
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val := utils.QuoteEscapedString(fmt.Sprintf("%v", item.Value))
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if columnName == BODY {
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logsOp = strings.Replace(logsOp, "ILIKE", "LIKE", 1) // removing i from ilike and not ilike
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conditions = append(conditions, fmt.Sprintf("lower(%s) %s lower('%%%s%%')", columnName, logsOp, val))
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} else {
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conditions = append(conditions, fmt.Sprintf("%s %s '%%%s%%'", columnName, logsOp, val))
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}
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default:
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columnName := getClickhouseColumnName(item.Key)
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fmtVal := utils.ClickHouseFormattedValue(value)
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// for use lower for like and ilike
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if op == v3.FilterOperatorLike || op == v3.FilterOperatorNotLike {
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if columnName == BODY {
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logsOp = strings.Replace(logsOp, "ILIKE", "LIKE", 1) // removing i from ilike and not ilike
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columnName = fmt.Sprintf("lower(%s)", columnName)
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fmtVal = fmt.Sprintf("lower(%s)", fmtVal)
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}
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}
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conditions = append(conditions, fmt.Sprintf("%s %s %s", columnName, logsOp, fmtVal))
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}
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} else {
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return "", fmt.Errorf("unsupported operator: %s", op)
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}
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}
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}
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// add group by conditions to filter out log lines which doesn't have the key
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for _, attr := range groupBy {
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if !attr.IsColumn {
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columnType := getClickhouseLogsColumnType(attr.Type)
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columnDataType := getClickhouseLogsColumnDataType(attr.DataType)
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conditions = append(conditions, fmt.Sprintf("has(%s_%s_key, '%s')", columnType, columnDataType, attr.Key))
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} else if attr.Type != v3.AttributeKeyTypeUnspecified {
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// for materialzied columns
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conditions = append(conditions, fmt.Sprintf("%s_exists`=true", strings.TrimSuffix(getClickhouseColumnName(attr), "`")))
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}
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}
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// add conditions for aggregate attribute
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if aggregateAttribute.Key != "" {
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existsFilter := GetExistsNexistsFilter(v3.FilterOperatorExists, v3.FilterItem{Key: aggregateAttribute})
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conditions = append(conditions, existsFilter)
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}
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queryString := strings.Join(conditions, " AND ")
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return queryString, nil
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}
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func buildLogsQuery(panelType v3.PanelType, start, end, step int64, mq *v3.BuilderQuery, graphLimitQtype string, preferRPM bool) (string, error) {
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filterSubQuery, err := buildLogsTimeSeriesFilterQuery(mq.Filters, mq.GroupBy, mq.AggregateAttribute)
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if err != nil {
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return "", err
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}
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if len(filterSubQuery) > 0 {
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filterSubQuery = " AND " + filterSubQuery
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}
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// timerange will be sent in epoch millisecond
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timeFilter := fmt.Sprintf("(timestamp >= %d AND timestamp <= %d)", utils.GetEpochNanoSecs(start), utils.GetEpochNanoSecs(end))
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selectLabels := getSelectLabels(mq.AggregateOperator, mq.GroupBy)
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having := having(mq.Having)
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if having != "" {
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having = " having " + having
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}
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var queryTmpl string
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if graphLimitQtype == constants.FirstQueryGraphLimit {
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queryTmpl = "SELECT"
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} else if panelType == v3.PanelTypeTable {
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queryTmpl =
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"SELECT now() as ts,"
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// step or aggregate interval is whole time period in case of table panel
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step = (utils.GetEpochNanoSecs(end) - utils.GetEpochNanoSecs(start)) / 1000000000
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} else if panelType == v3.PanelTypeGraph || panelType == v3.PanelTypeValue {
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// Select the aggregate value for interval
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queryTmpl =
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fmt.Sprintf("SELECT toStartOfInterval(fromUnixTimestamp64Nano(timestamp), INTERVAL %d SECOND) AS ts,", step)
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}
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queryTmpl =
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queryTmpl + selectLabels +
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" %s as value " +
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"from signoz_logs.distributed_logs " +
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"where " + timeFilter + "%s" +
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"%s%s" +
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"%s"
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// we dont need value for first query
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// going with this route as for a cleaner approach on implementation
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if graphLimitQtype == constants.FirstQueryGraphLimit {
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queryTmpl = "SELECT " + getSelectKeys(mq.AggregateOperator, mq.GroupBy) + " from (" + queryTmpl + ")"
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}
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groupBy := groupByAttributeKeyTags(panelType, graphLimitQtype, mq.GroupBy...)
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if panelType != v3.PanelTypeList && groupBy != "" {
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groupBy = " group by " + groupBy
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}
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orderBy := orderByAttributeKeyTags(panelType, mq.OrderBy, mq.GroupBy)
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if panelType != v3.PanelTypeList && orderBy != "" {
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orderBy = " order by " + orderBy
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}
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if graphLimitQtype == constants.SecondQueryGraphLimit {
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filterSubQuery = filterSubQuery + " AND " + fmt.Sprintf("(%s) GLOBAL IN (", getSelectKeys(mq.AggregateOperator, mq.GroupBy)) + "#LIMIT_PLACEHOLDER)"
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}
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aggregationKey := ""
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if mq.AggregateAttribute.Key != "" {
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aggregationKey = getClickhouseColumnName(mq.AggregateAttribute)
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}
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switch mq.AggregateOperator {
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case v3.AggregateOperatorRate:
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rate := float64(step)
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if preferRPM {
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rate = rate / 60.0
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}
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op := fmt.Sprintf("count(%s)/%f", aggregationKey, rate)
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query := fmt.Sprintf(queryTmpl, op, filterSubQuery, groupBy, having, orderBy)
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return query, nil
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case
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v3.AggregateOperatorRateSum,
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v3.AggregateOperatorRateMax,
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v3.AggregateOperatorRateAvg,
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v3.AggregateOperatorRateMin:
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rate := float64(step)
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if preferRPM {
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rate = rate / 60.0
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}
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op := fmt.Sprintf("%s(%s)/%f", aggregateOperatorToSQLFunc[mq.AggregateOperator], aggregationKey, rate)
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query := fmt.Sprintf(queryTmpl, op, filterSubQuery, groupBy, having, orderBy)
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return query, nil
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case
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v3.AggregateOperatorP05,
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v3.AggregateOperatorP10,
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v3.AggregateOperatorP20,
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v3.AggregateOperatorP25,
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v3.AggregateOperatorP50,
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v3.AggregateOperatorP75,
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v3.AggregateOperatorP90,
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v3.AggregateOperatorP95,
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v3.AggregateOperatorP99:
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op := fmt.Sprintf("quantile(%v)(%s)", aggregateOperatorToPercentile[mq.AggregateOperator], aggregationKey)
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|
|
query := fmt.Sprintf(queryTmpl, op, filterSubQuery, groupBy, having, orderBy)
|
||
|
|
return query, nil
|
||
|
|
case v3.AggregateOperatorAvg, v3.AggregateOperatorSum, v3.AggregateOperatorMin, v3.AggregateOperatorMax:
|
||
|
|
op := fmt.Sprintf("%s(%s)", aggregateOperatorToSQLFunc[mq.AggregateOperator], aggregationKey)
|
||
|
|
query := fmt.Sprintf(queryTmpl, op, filterSubQuery, groupBy, having, orderBy)
|
||
|
|
return query, nil
|
||
|
|
case v3.AggregateOperatorCount:
|
||
|
|
op := "toFloat64(count(*))"
|
||
|
|
query := fmt.Sprintf(queryTmpl, op, filterSubQuery, groupBy, having, orderBy)
|
||
|
|
return query, nil
|
||
|
|
case v3.AggregateOperatorCountDistinct:
|
||
|
|
op := fmt.Sprintf("toFloat64(count(distinct(%s)))", aggregationKey)
|
||
|
|
query := fmt.Sprintf(queryTmpl, op, filterSubQuery, groupBy, having, orderBy)
|
||
|
|
return query, nil
|
||
|
|
case v3.AggregateOperatorNoOp:
|
||
|
|
queryTmpl := constants.LogsSQLSelect + "from signoz_logs.distributed_logs where %s%s order by %s"
|
||
|
|
query := fmt.Sprintf(queryTmpl, timeFilter, filterSubQuery, orderBy)
|
||
|
|
return query, nil
|
||
|
|
default:
|
||
|
|
return "", fmt.Errorf("unsupported aggregate operator")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func buildLogsLiveTailQuery(mq *v3.BuilderQuery) (string, error) {
|
||
|
|
filterSubQuery, err := buildLogsTimeSeriesFilterQuery(mq.Filters, mq.GroupBy, v3.AttributeKey{})
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
|
||
|
|
switch mq.AggregateOperator {
|
||
|
|
case v3.AggregateOperatorNoOp:
|
||
|
|
query := constants.LogsSQLSelect + "from signoz_logs.distributed_logs where "
|
||
|
|
if len(filterSubQuery) > 0 {
|
||
|
|
query = query + filterSubQuery + " AND "
|
||
|
|
}
|
||
|
|
|
||
|
|
return query, nil
|
||
|
|
default:
|
||
|
|
return "", fmt.Errorf("unsupported aggregate operator in live tail")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// groupBy returns a string of comma separated tags for group by clause
|
||
|
|
// `ts` is always added to the group by clause
|
||
|
|
func groupBy(panelType v3.PanelType, graphLimitQtype string, tags ...string) string {
|
||
|
|
if (graphLimitQtype != constants.FirstQueryGraphLimit) && (panelType == v3.PanelTypeGraph || panelType == v3.PanelTypeValue) {
|
||
|
|
tags = append(tags, "ts")
|
||
|
|
}
|
||
|
|
return strings.Join(tags, ",")
|
||
|
|
}
|
||
|
|
|
||
|
|
func groupByAttributeKeyTags(panelType v3.PanelType, graphLimitQtype string, tags ...v3.AttributeKey) string {
|
||
|
|
groupTags := []string{}
|
||
|
|
for _, tag := range tags {
|
||
|
|
groupTags = append(groupTags, "`"+tag.Key+"`")
|
||
|
|
}
|
||
|
|
return groupBy(panelType, graphLimitQtype, groupTags...)
|
||
|
|
}
|
||
|
|
|
||
|
|
// orderBy returns a string of comma separated tags for order by clause
|
||
|
|
// if there are remaining items which are not present in tags they are also added
|
||
|
|
// if the order is not specified, it defaults to ASC
|
||
|
|
func orderBy(panelType v3.PanelType, items []v3.OrderBy, tagLookup map[string]struct{}) []string {
|
||
|
|
var orderBy []string
|
||
|
|
|
||
|
|
for _, item := range items {
|
||
|
|
if item.ColumnName == constants.SigNozOrderByValue {
|
||
|
|
orderBy = append(orderBy, fmt.Sprintf("value %s", item.Order))
|
||
|
|
} else if _, ok := tagLookup[item.ColumnName]; ok {
|
||
|
|
orderBy = append(orderBy, fmt.Sprintf("`%s` %s", item.ColumnName, item.Order))
|
||
|
|
} else if panelType == v3.PanelTypeList {
|
||
|
|
attr := v3.AttributeKey{Key: item.ColumnName, DataType: item.DataType, Type: item.Type, IsColumn: item.IsColumn}
|
||
|
|
name := getClickhouseColumnName(attr)
|
||
|
|
if item.IsColumn {
|
||
|
|
name = "`" + name + "`"
|
||
|
|
}
|
||
|
|
orderBy = append(orderBy, fmt.Sprintf("%s %s", name, item.Order))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return orderBy
|
||
|
|
}
|
||
|
|
|
||
|
|
func orderByAttributeKeyTags(panelType v3.PanelType, items []v3.OrderBy, tags []v3.AttributeKey) string {
|
||
|
|
|
||
|
|
tagLookup := map[string]struct{}{}
|
||
|
|
for _, v := range tags {
|
||
|
|
tagLookup[v.Key] = struct{}{}
|
||
|
|
}
|
||
|
|
|
||
|
|
orderByArray := orderBy(panelType, items, tagLookup)
|
||
|
|
|
||
|
|
if len(orderByArray) == 0 {
|
||
|
|
if panelType == v3.PanelTypeList {
|
||
|
|
orderByArray = append(orderByArray, constants.TIMESTAMP+" DESC")
|
||
|
|
} else {
|
||
|
|
orderByArray = append(orderByArray, "value DESC")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
str := strings.Join(orderByArray, ",")
|
||
|
|
return str
|
||
|
|
}
|
||
|
|
|
||
|
|
func having(items []v3.Having) string {
|
||
|
|
// aggregate something and filter on that aggregate
|
||
|
|
var having []string
|
||
|
|
for _, item := range items {
|
||
|
|
having = append(having, fmt.Sprintf("value %s %s", item.Operator, utils.ClickHouseFormattedValue(item.Value)))
|
||
|
|
}
|
||
|
|
return strings.Join(having, " AND ")
|
||
|
|
}
|
||
|
|
|
||
|
|
func reduceQuery(query string, reduceTo v3.ReduceToOperator, aggregateOperator v3.AggregateOperator) (string, error) {
|
||
|
|
// the timestamp picked is not relevant here since the final value used is show the single
|
||
|
|
// chart with just the query value.
|
||
|
|
switch reduceTo {
|
||
|
|
case v3.ReduceToOperatorLast:
|
||
|
|
query = fmt.Sprintf("SELECT anyLast(value) as value, now() as ts FROM (%s)", query)
|
||
|
|
case v3.ReduceToOperatorSum:
|
||
|
|
query = fmt.Sprintf("SELECT sum(value) as value, now() as ts FROM (%s)", query)
|
||
|
|
case v3.ReduceToOperatorAvg:
|
||
|
|
query = fmt.Sprintf("SELECT avg(value) as value, now() as ts FROM (%s)", query)
|
||
|
|
case v3.ReduceToOperatorMax:
|
||
|
|
query = fmt.Sprintf("SELECT max(value) as value, now() as ts FROM (%s)", query)
|
||
|
|
case v3.ReduceToOperatorMin:
|
||
|
|
query = fmt.Sprintf("SELECT min(value) as value, now() as ts FROM (%s)", query)
|
||
|
|
default:
|
||
|
|
return "", fmt.Errorf("unsupported reduce operator")
|
||
|
|
}
|
||
|
|
return query, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func addLimitToQuery(query string, limit uint64) string {
|
||
|
|
if limit == 0 {
|
||
|
|
return query
|
||
|
|
}
|
||
|
|
return fmt.Sprintf("%s LIMIT %d", query, limit)
|
||
|
|
}
|
||
|
|
|
||
|
|
func addOffsetToQuery(query string, offset uint64) string {
|
||
|
|
return fmt.Sprintf("%s OFFSET %d", query, offset)
|
||
|
|
}
|
||
|
|
|
||
|
|
type Options struct {
|
||
|
|
GraphLimitQtype string
|
||
|
|
IsLivetailQuery bool
|
||
|
|
PreferRPM bool
|
||
|
|
}
|
||
|
|
|
||
|
|
func isOrderByTs(orderBy []v3.OrderBy) bool {
|
||
|
|
if len(orderBy) == 1 && (orderBy[0].Key == constants.TIMESTAMP || orderBy[0].ColumnName == constants.TIMESTAMP) {
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
|
||
|
|
// PrepareLogsQuery prepares the query for logs
|
||
|
|
// start and end are in epoch millisecond
|
||
|
|
// step is in seconds
|
||
|
|
func PrepareLogsQuery(start, end int64, queryType v3.QueryType, panelType v3.PanelType, mq *v3.BuilderQuery, options Options) (string, error) {
|
||
|
|
|
||
|
|
// adjust the start and end time to the step interval
|
||
|
|
// NOTE: Disabling this as it's creating confusion between charts and actual data
|
||
|
|
// if panelType != v3.PanelTypeList {
|
||
|
|
// start = start - (start % (mq.StepInterval * 1000))
|
||
|
|
// end = end - (end % (mq.StepInterval * 1000))
|
||
|
|
// }
|
||
|
|
|
||
|
|
if options.IsLivetailQuery {
|
||
|
|
query, err := buildLogsLiveTailQuery(mq)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
return query, nil
|
||
|
|
} else if options.GraphLimitQtype == constants.FirstQueryGraphLimit {
|
||
|
|
// give me just the groupby names
|
||
|
|
query, err := buildLogsQuery(panelType, start, end, mq.StepInterval, mq, options.GraphLimitQtype, options.PreferRPM)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
query = addLimitToQuery(query, mq.Limit)
|
||
|
|
|
||
|
|
return query, nil
|
||
|
|
} else if options.GraphLimitQtype == constants.SecondQueryGraphLimit {
|
||
|
|
query, err := buildLogsQuery(panelType, start, end, mq.StepInterval, mq, options.GraphLimitQtype, options.PreferRPM)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
return query, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
query, err := buildLogsQuery(panelType, start, end, mq.StepInterval, mq, options.GraphLimitQtype, options.PreferRPM)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
if panelType == v3.PanelTypeValue {
|
||
|
|
query, err = reduceQuery(query, mq.ReduceTo, mq.AggregateOperator)
|
||
|
|
}
|
||
|
|
|
||
|
|
if panelType == v3.PanelTypeList {
|
||
|
|
// check if limit exceeded
|
||
|
|
if mq.Limit > 0 && mq.Offset >= mq.Limit {
|
||
|
|
return "", fmt.Errorf("max limit exceeded")
|
||
|
|
}
|
||
|
|
|
||
|
|
if mq.PageSize > 0 {
|
||
|
|
if mq.Limit > 0 && mq.Offset+mq.PageSize > mq.Limit {
|
||
|
|
query = addLimitToQuery(query, mq.Limit-mq.Offset)
|
||
|
|
} else {
|
||
|
|
query = addLimitToQuery(query, mq.PageSize)
|
||
|
|
}
|
||
|
|
|
||
|
|
// add offset to the query only if it is not orderd by timestamp.
|
||
|
|
if !isOrderByTs(mq.OrderBy) {
|
||
|
|
query = addOffsetToQuery(query, mq.Offset)
|
||
|
|
}
|
||
|
|
|
||
|
|
} else {
|
||
|
|
query = addLimitToQuery(query, mq.Limit)
|
||
|
|
}
|
||
|
|
} else if panelType == v3.PanelTypeTable {
|
||
|
|
query = addLimitToQuery(query, mq.Limit)
|
||
|
|
}
|
||
|
|
|
||
|
|
return query, err
|
||
|
|
}
|