github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/sql/opt/telemetry.go (about)

     1  // Copyright 2019 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  package opt
    12  
    13  import (
    14  	"github.com/cockroachdb/cockroach/pkg/server/telemetry"
    15  	"github.com/cockroachdb/cockroach/pkg/sql/sqltelemetry"
    16  	"github.com/cockroachdb/errors"
    17  )
    18  
    19  // OpTelemetryCounters stores telemetry counters for operators marked with the
    20  // "Telemetry" tag. All other operators have nil values.
    21  var OpTelemetryCounters [NumOperators]telemetry.Counter
    22  
    23  func init() {
    24  	for _, op := range TelemetryOperators {
    25  		OpTelemetryCounters[op] = sqltelemetry.OptNodeCounter(op.String())
    26  	}
    27  }
    28  
    29  // JoinTypeToUseCounter returns the JoinTypeXyzUseCounter for the given join
    30  // operator.
    31  func JoinTypeToUseCounter(op Operator) telemetry.Counter {
    32  	switch op {
    33  	case InnerJoinOp:
    34  		return sqltelemetry.JoinTypeInnerUseCounter
    35  	case LeftJoinOp, RightJoinOp:
    36  		return sqltelemetry.JoinTypeLeftUseCounter
    37  	case FullJoinOp:
    38  		return sqltelemetry.JoinTypeFullUseCounter
    39  	case SemiJoinOp:
    40  		return sqltelemetry.JoinTypeSemiUseCounter
    41  	case AntiJoinOp:
    42  		return sqltelemetry.JoinTypeAntiUseCounter
    43  	default:
    44  		panic(errors.AssertionFailedf("unhandled join op %s", op))
    45  	}
    46  }