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loki/pkg/engine/stats.go

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package engine
import "github.com/grafana/loki/v3/pkg/xcap"
var (
// Top-level phase durations
statLogicalPlanDuration = xcap.NewStatisticInt64("plan.logical.duration", xcap.AggregationTypeSum)
statPhysicalPlanDuration = xcap.NewStatisticInt64("plan.physical.duration", xcap.AggregationTypeSum)
statPrepareDuration = xcap.NewStatisticInt64("prepare.duration", xcap.AggregationTypeSum)
statExecutionDuration = xcap.NewStatisticInt64("execution.duration", xcap.AggregationTypeSum)
statCloseDuration = xcap.NewStatisticInt64("close.duration", xcap.AggregationTypeSum)
// Physical plan subphases
statPhysicalIndexQueryDuration = xcap.NewStatisticInt64("plan.physical.index_query.duration", xcap.AggregationTypeSum)
statPhysicalOptimizeDuration = xcap.NewStatisticInt64("plan.physical.optimize.duration", xcap.AggregationTypeSum)
// Execution subphases
statReadBatchDuration = xcap.NewStatisticInt64("execute.read_batch.duration", xcap.AggregationTypeSum)
statProcessBatchDuration = xcap.NewStatisticInt64("execute.process_batch.duration", xcap.AggregationTypeSum)
// Result-collection stats, recorded once per query in (*Engine).execute and
// surfaced on the execution-summary log line.
statResultRows = xcap.NewStatisticInt64("execute.result.rows", xcap.AggregationTypeSum)
statTimeToFirstBatch = xcap.NewStatisticInt64("execute.result.time_to_first_batch", xcap.AggregationTypeSum)
statResultSizeBytes = xcap.NewStatisticInt64("execute.result.size_bytes", xcap.AggregationTypeSum)
)