Asynchronous DQL Data Query¶
POST /api/v1/df/asynchronous/query_data
Overview¶
Body Request Parameters¶
Parameter Name | Type | Required | Description |
---|---|---|---|
queries | array | Multiple command queries, its content is a list composed of query objects Allow null: False |
|
fieldTagDescNeeded | boolean | Whether field or tag description information is needed Allow null: False |
Additional Parameter Explanation¶
Query Explanation
- Parameter Description
Parameter Name | Type | Required | Description |
---|---|---|---|
queries | array | Y | Multiple command queries, its content is a list composed of query objects |
fieldTagDescNeeded | boolean | Whether field or tag description information is needed |
- Structure Explanation of
queries[*]
Member Parameters *** Note, theasync_id
parameter has been added based on the "DQL Data Query" interface ***
Parameter Name | Type | Required | Description |
---|---|---|---|
async_id |
string | N | Asynchronous query task ID, this value comes from the content.data[*].async_id in the previous DQL query result; if this value exists in the previous query response, it must be included in this query |
qtype | string | Y | Query statement type dql: indicates a DQL type query statement; promql: indicates a PromQL type query statement |
query | json | Y | Query structure |
query.q | string | Query statement consistent with the qtype, for example, a DQL or PromQL query statement | |
query.promqlType | enum | Effective when qtype=promql, PromQL query type, optional values are instantQuery and rangeQuery , default value is rangeQuery |
|
query.highlight | boolean | Whether to display highlighted data | |
query.timeRange | array | List of timestamps for time range | |
query.disableMultipleField | bool | Whether to enable single-column mode, default is true |
|
query.showLabel | bool | Whether to display object labels, default is none | |
query.funcList | array | Re-aggregates DQL return values, note that this parameter is invalid when disableMultipleField=False | |
query.slimit | integer | Time series group size, only valid for metrics queries | |
query.soffset | integer | Time series group offset | |
query.limit | integer | Page size | |
query.offset | integer | Page offset | |
query.orderby | array | Sort list, {fieldName:method} , note that sorting for Measurement queries only supports fieldName=time; method in ["desc", "asc"]; note that sorting for Measurement queries only supports fieldName=time |
|
query.sorderby | array | Sort list, sorderby column is an expression supporting all aggregation functions that return a single value min max last avg p90 p95 count, {fieldName:method} , structure is the same as orderby |
|
query.order_by | array | Sort list, structure is [{"column": "field", "order": "DESC"}] , compatible with Doris engine fields |
|
query.sorder_by | array | Sort list, structure is [{"column": "field", "order": "DESC"}] , compatible with Doris engine fields |
|
query.density | string | Response point density, priority is less than autoDensity and greater than the density set in the DQL statement | |
query.interval | integer | Unit is seconds, time slice interval used to calculate the number of response points; calculated number of points is less than or equal to the number of points when density=high, then it is valid, otherwise it is invalid | |
query.search_after | array | Pagination query marker. The search_after value from the previous request response with identical parameters should be used as the parameter for this request. | |
query.maxPointCount | integer | Maximum number of points | |
query.workspaceUUID | string | UUID of the workspace to query | |
query.workspaceUUIDs | array | UUIDs of the workspaces to query, takes precedence over query.workspaceUUID | |
query.output_format | string | lineprotocol: line protocol output, defaults to existing output format if not specified | |
query.cursor_time | integer | Segment query threshold: For the first segmented query, set cursor_time to end_time; for subsequent segmented queries, set cursor_time to next_cursor_time in the response | |
query.disable_sampling | bool | Sampling disable switch, default value is false |
- Explanation of Response Point Density
density
Parameter Values
Optional Value | Description |
---|---|
lower | Low, 60 points |
low | Lower, 180 points |
medium | Medium, 360 points |
high | Higher, 720 points |
-
Note the priority of the point density parameter, maximum density
density[high]
maxPointCount > interval > density > control parameters in the DQL statement -
Common Query Explanations
-
Unrecovered Event Query Note: When performing data queries via the openapi interface, the default role is Administrator. Be aware that data access rules may apply.