ExplainQueryStage class

A single stage of query execution.

Constructors

ExplainQueryStage({String? completedParallelInputs, String? computeMode, String? computeMsAvg, String? computeMsMax, double? computeRatioAvg, double? computeRatioMax, String? endMs, String? id, List<String>? inputStages, String? name, String? parallelInputs, String? readMsAvg, String? readMsMax, double? readRatioAvg, double? readRatioMax, String? recordsRead, String? recordsWritten, String? shuffleOutputBytes, String? shuffleOutputBytesSpilled, String? slotMs, String? startMs, String? status, List<ExplainQueryStep>? steps, String? waitMsAvg, String? waitMsMax, double? waitRatioAvg, double? waitRatioMax, String? writeMsAvg, String? writeMsMax, double? writeRatioAvg, double? writeRatioMax})

ExplainQueryStage.fromJson(Map json_)

Properties

completedParallelInputs ↔ String?

Number of parallel input segments completed.

getter/setter pair

computeMode ↔ String?

Compute mode for this stage.

getter/setter pair

computeMsAvg ↔ String?

Milliseconds the average shard spent on CPU-bound tasks.

getter/setter pair

computeMsMax ↔ String?

Milliseconds the slowest shard spent on CPU-bound tasks.

getter/setter pair

computeRatioAvg ↔ double?

Relative amount of time the average shard spent on CPU-bound tasks.

getter/setter pair

computeRatioMax ↔ double?

Relative amount of time the slowest shard spent on CPU-bound tasks.

getter/setter pair

endMs ↔ String?

Stage end time represented as milliseconds since the epoch.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

id ↔ String?

Unique ID for the stage within the plan.

getter/setter pair

inputStages ↔ List<String>?

IDs for stages that are inputs to this stage.

getter/setter pair

name ↔ String?

Human-readable name for the stage.

getter/setter pair

parallelInputs ↔ String?

Number of parallel input segments to be processed

getter/setter pair

readMsAvg ↔ String?

Milliseconds the average shard spent reading input.

getter/setter pair

readMsMax ↔ String?

Milliseconds the slowest shard spent reading input.

getter/setter pair

readRatioAvg ↔ double?

Relative amount of time the average shard spent reading input.

getter/setter pair

readRatioMax ↔ double?

Relative amount of time the slowest shard spent reading input.

getter/setter pair

recordsRead ↔ String?

Number of records read into the stage.

getter/setter pair

recordsWritten ↔ String?

Number of records written by the stage.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

shuffleOutputBytes ↔ String?

Total number of bytes written to shuffle.

getter/setter pair

shuffleOutputBytesSpilled ↔ String?

Total number of bytes written to shuffle and spilled to disk.

getter/setter pair

slotMs ↔ String?

Slot-milliseconds used by the stage.

getter/setter pair

startMs ↔ String?

Stage start time represented as milliseconds since the epoch.

getter/setter pair

status ↔ String?

Current status for this stage.

getter/setter pair

steps ↔ List<ExplainQueryStep>?

List of operations within the stage in dependency order (approximately chronological).

getter/setter pair

waitMsAvg ↔ String?

Milliseconds the average shard spent waiting to be scheduled.

getter/setter pair

waitMsMax ↔ String?

Milliseconds the slowest shard spent waiting to be scheduled.

getter/setter pair

waitRatioAvg ↔ double?

Relative amount of time the average shard spent waiting to be scheduled.

getter/setter pair

waitRatioMax ↔ double?

Relative amount of time the slowest shard spent waiting to be scheduled.

getter/setter pair

writeMsAvg ↔ String?

Milliseconds the average shard spent on writing output.

getter/setter pair

writeMsMax ↔ String?

Milliseconds the slowest shard spent on writing output.

getter/setter pair

writeRatioAvg ↔ double?

Relative amount of time the average shard spent on writing output.

getter/setter pair

writeRatioMax ↔ double?

Relative amount of time the slowest shard spent on writing output.

getter/setter pair

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited