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https://github.com/infinivision/gaeadb
Fast Database engine in Go.
https://github.com/infinivision/gaeadb
Last synced: 11 days ago
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Fast Database engine in Go.
- Host: GitHub
- URL: https://github.com/infinivision/gaeadb
- Owner: infinivision
- License: gpl-3.0
- Created: 2019-12-04T07:44:11.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2019-12-24T01:21:14.000Z (over 4 years ago)
- Last Synced: 2024-04-30T11:46:12.417Z (about 2 months ago)
- Language: Go
- Size: 91.8 KB
- Stars: 16
- Watchers: 13
- Forks: 3
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Lists
- go-awesome - gaeadb
- go-awesome - gaeadb
- go-awesome - gaeadb
README
# gaeadb
gaeadb is a pure Go Database engine designed by nnsgmsone.
The goal of the project is to provide a database engine for table or other complex data structures.
## Table of Contents
* [Getting Started](#getting-started)
+ [Opening a Database engine](#opening-a-database-engine)
+ [DB interface](#db-interface)
+ [Transaction interface](#transaction-interface)
* [Benchmarks](#benchmarks)
* [Caveats & Limitations](#caveats--limitations)
## Getting Started
### Opening a database
The top-level object in gaeadb is a `DB`. It represents multiple files on disk
in specific directories, which contain the data for a single database.
```go
package main
import (
"log"
"gaeadb/db"
)
func main() {
// Open the gaeadb database located in the /tmp/gaea.db directory.
// It will be created if it doesn't exist.
cfg := db.DefaultConfig()
cfg.DirName = "/tmp/gaea.db"
db, err := db.Open(cfg)
if err != nil {
log.Fatal(err)
}
defer db.Close()
// Your code here…
}
```
### DB interface
```go
type DB interface {
Close() error
Del([]byte) error
Set([]byte, []byte) error
Get([]byte) ([]byte, error)
NewTransaction(readOnly bool) (Transaction, error)
}
```
### Transaction interface
```go
type Transaction interface {
Commit() error
Rollback() error
Del([]byte) error
Set([]byte, []byte) error
Get([]byte) ([]byte, error)
NewForwardIterator([]byte) (Iterator, error)
NewBackwardIterator([]byte) (Iterator, error)
}
type Iterator interface {
Close() error
Next() error
Valid() bool
Key() []byte // can use outside
Value() ([]byte, error) // can use outside
}
```
## Benchmarks
I have run comprehensive benchmarks against Bolt and Badger, The
benchmarking code, and the detailed logs for the benchmarks can be found in the
[gaeadbBench] repo.
[gaeadbBench]: https://github.com/infinivision/gaeadbBench
## Caveats & Limitations
### Caveats
sync is always on and not allowed to close
### Limitations
The maximum value of key is 4074 and the maximum value of value is 64k.