badgerquery

enchance badger db with index and query

• db
  • seq
    • meta:seq
• table
  • config
    • meta:table:config:$tableName
  • record
    • data
      • $tableDataID:$dataKey
    • index
      • $tableIndexID:$dataKey
• index
  • config
    • meta:table:index:config:$tableName:$indexName
  • seq
    • meta:table:index:seq:$tableName:$indexName
  • data
    • $indexID:$dataKey:$indexSeq

- GC
    - badger's gc
    - clean deleted table, index , data

• create item
• create index

• save item
• add changed index
• delete old index

• delete item
• delete index

• create default id index

• delete items
• delete index
• delete index data
• delete

• build index on exists items

• delete index data

• get queue

• do not update more than 1000 items in one update.