github.com/matrixorigin/matrixone@v0.7.0/pkg/vm/engine/disttae/index.go (about)

     1  // Copyright 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package disttae
    16  
    17  import "github.com/matrixorigin/matrixone/pkg/txn/storage/memorystorage/memtable"
    18  
    19  const (
    20  	index_PrimaryKey         = memtable.Text("primary key")
    21  	index_BlockID_Time_OP    = memtable.Text("block id, time, op")
    22  	index_TableID_PrimaryKey = memtable.Text("table id, primary key")
    23  )
    24  
    25  type ColumnsIndexDef struct {
    26  	Name    memtable.Text
    27  	Columns []int
    28  }
    29  
    30  func NewColumnsIndexDef(name memtable.Text, cols ...int) ColumnsIndexDef {
    31  	return ColumnsIndexDef{
    32  		Name:    name,
    33  		Columns: cols,
    34  	}
    35  }