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Analytics Query Responses

    When you use Analytics Workbench, the Analytics Service returns a JSON array containing just the query results, separate from the query metrics or the query plan.

    When you use the Service API or the cbq Shell, the Analytics Service returns a JSON object, which includes the query results, query metrics, any warnings or errors, and the query plan. These are described on this page.

    Common Responses

    The Analytics Service returns the following responses in common with the Query Service.

    For more information on these common responses, refer to the Response Body section on the SQL++ for Query REST API page.

    Property Schema

    requestID
    optional

    A unique identifier for the response.

    UUID (UUID)

    clientContextID
    optional

    The client context ID of the request, if one was supplied — refer to client_context_id in Query Parameters.

    String

    signature
    optional

    The schema of the results. Present only when the query completes successfully.

    Object

    results
    optional

    An array of all the objects returned by the query. An object can be any JSON value.

    Any Type array

    status
    optional

    The status of the request.

    Values: "success", "running", "failed", "timeout", "fatal"

    String

    errors
    optional

    An array of error objects. Present only if 1 or more errors are returned during processing of the request. Each error is represented by an object in this list.

    Errors array

    warnings
    optional

    An array of warning objects. Present only if 1 or more warnings are returned during processing of the request. Each warning is represented by an object in this list.

    Note that you can specify the maximum number of warning messages to be returned in the query response — refer to max-warnings in Query Parameters. By default, no warnings are returned, even if warnings have occurred during processing.

    Warnings array

    metrics
    optional

    An object containing metrics about the request.

    Common Metrics

    Errors

    Property Schema

    code
    optional

    A number that identifies the error.

    Integer

    msg
    optional

    A message describing the error in detail. Refer to Error Codes.

    String

    Warnings

    Property Schema

    code
    optional

    A number that identifies the warning.

    Integer

    msg
    optional

    A message describing the warning in detail.

    String

    Common Metrics

    Property Schema

    elapsedTime
    optional

    The total time taken for the request, that is the time from when the request was received until the results were returned.

    String

    executionTime
    optional

    The time taken for the execution of the request, that is the time from when query execution started until the results were returned.

    String

    resultCount
    optional

    The total number of objects in the results.

    Integer (unsigned)

    resultSize
    optional

    The total number of bytes in the results.

    Integer (unsigned)

    errorCount
    optional

    The number of errors that occurred during the request.

    Integer (unsigned)

    warningCount
    optional

    The number of warnings that occurred during the request.

    Integer (unsigned)

    Analytics Responses

    In addition, the Analytics Service returns the following responses which are unique to Analytics.

    Property Schema

    plans
    optional

    An object containing the query plans, if requested.

    Plans

    metrics
    optional

    An object containing metrics about the request.

    Analytics Metrics

    Plans

    Property Schema

    logicalPlan
    optional

    The logical plan.

    Object

    optimizedLogicalPlan
    optional

    The optimized logical plan.

    Object

    rewrittenExpressionTree
    optional

    The rewritten expression tree.

    String

    expressionTree
    optional

    The expression tree.

    String

    job
    optional

    The job details.

    Object
    The structure and content of query plans is expected to change as development of the query processor progresses.

    Analytics Metrics

    Property Schema

    processedObjects
    optional

    Number of processed tuples during query execution.

    Long (int64)