/
aggregation.go
37 lines (33 loc) · 1.29 KB
/
aggregation.go
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//
// This source code is a modified form of original source from the TiDB project, which has the following copyright header(s):
//
// Copyright 2016 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package aggregation
// AggFunctionMode stands for the aggregation function's mode.
type AggFunctionMode int
// |-----------------|--------------|--------------|
// | AggFunctionMode | input | output |
// |-----------------|--------------|--------------|
// | CompleteMode | origin data | final result |
// | FinalMode | partial data | final result |
// | Partial1Mode | origin data | partial data |
// | Partial2Mode | partial data | partial data |
// | DedupMode | origin data | origin data |
// |-----------------|--------------|--------------|
const (
CompleteMode AggFunctionMode = iota
FinalMode
Partial1Mode
Partial2Mode
)