github.com/codingfuture/orig-energi3@v0.8.4/swarm/storage/schema.go (about)

     1  // Copyright 2018 The Energi Core Authors
     2  // Copyright 2018 The go-ethereum Authors
     3  // This file is part of the Energi Core library.
     4  //
     5  // The Energi Core library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The Energi Core library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the Energi Core library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package storage
    19  
    20  // The DB schema we want to use. The actual/current DB schema might differ
    21  // until migrations are run.
    22  const CurrentDbSchema = DbSchemaHalloween
    23  
    24  // There was a time when we had no schema at all.
    25  const DbSchemaNone = ""
    26  
    27  // "purity" is the first formal schema of LevelDB we release together with Swarm 0.3.5
    28  const DbSchemaPurity = "purity"
    29  
    30  // "halloween" is here because we had a screw in the garbage collector index.
    31  // Because of that we had to rebuild the GC index to get rid of erroneous
    32  // entries and that takes a long time. This schema is used for bookkeeping,
    33  // so rebuild index will run just once.
    34  const DbSchemaHalloween = "halloween"