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https://github.com/chaisql/chai
Modern embedded SQL database
https://github.com/chaisql/chai
database embedded-database go golang sql
Last synced: 11 days ago
JSON representation
Modern embedded SQL database
- Host: GitHub
- URL: https://github.com/chaisql/chai
- Owner: chaisql
- License: mit
- Created: 2018-06-23T15:12:03.000Z (almost 6 years ago)
- Default Branch: main
- Last Pushed: 2024-03-14T09:53:11.000Z (3 months ago)
- Last Synced: 2024-04-19T21:15:22.485Z (about 2 months ago)
- Topics: database, embedded-database, go, golang, sql
- Language: Go
- Homepage:
- Size: 4.68 MB
- Stars: 1,452
- Watchers: 34
- Forks: 82
- Open Issues: 28
-
Metadata Files:
- Readme: README.md
- Contributing: .github/CONTRIBUTING.md
- License: LICENSE
Lists
- awesome-stars - chaisql/chai - `★1489` Modern embedded SQL database (Go)
- go-awesome - genji - 文档内嵌型数据库 (开源类库 / 数据库)
- awesome-ccamel - chaisql/chai - Modern embedded SQL database (Go)
README
# ChaiSQL
ChaiSQL is a modern embedded SQL database, focusing on flexibility and ease of use for developers.
[](https://github.com/chaisql/chai/actions/workflows/go.yml)
[](https://pkg.go.dev/github.com/chaisql/chai)
## Key Features
- **PostgreSQL API**: ChaiSQL SQL API is compatible with PostgreSQL
- **Optimized for Go**: Native Go implementation with no CGO dependency.
- **Storage flexibility**: Store data on-disk or in-memory.
- **Solid foundations**: ChaiSQL is backed by [Pebble](https://github.com/cockroachdb/pebble) for native Go toolchains, and [RocksDB](https://rocksdb.org/) for non-Go or CGO builds (coming soon).
## Roadmap
ChaiSQL is work in progress and is not ready yet for production.
Here is a high level list of features that we want to implement in the near future, in no particular order:
- [ ] Stable storage format (90% completed)
- [ ] Implement most of the SQL-92 standard (detailed roadmap coming soon)
- [ ] Provide clients for other languages (JS/TS, Python, etc) and add support for RocksDB as the backend
- [ ] Compatibility with PostgreSQL drivers and ORMs
## Installation
Install the ChaiSQL database
```bash
go install github.com/chaisql/chai
```
## Quickstart
```go
package main
import (
"context"
"fmt"
"log"
"github.com/chaisql/chai"
)
func main() {
// Create a database instance, here we'll store everything on-disk
db, err := chai.Open("mydb")
if err != nil {
log.Fatal(err)
}
defer db.Close()
err = db.Exec(`
CREATE TABLE user (
id INT PRIMARY KEY,
name TEXT NOT NULL UNIQUE,
created_at TIMESTAMP NOT NULL
)
`)
err = db.Exec(`INSERT INTO user (id, name, age) VALUES ($1, $2, $3)`, 20, "foo", 40)
rows, err := db.Query("SELECT id, name, age, address FROM user WHERE age >= $1", 18)
defer rows.Close()
err = rows.Iterate(func(r *chai.Row) error {
// scan each column
var id, name, age
err = r.Scan(&id, &name, &age)
// or into a struct
var u User
err = r.StructScan(&u)
// or even a map
var m map[string]any
err = r.MapScan(&m)
return nil
})
}
```
Checkout the [Go doc](https://pkg.go.dev/github.com/chaisql/chai) and the [usage example](#usage) in the README to get started quickly.
### In-memory database
For in-memory operations, simply use `:memory:`:
```go
db, err := chai.Open(":memory:")
```
### Using database/sql
```go
// import chai as a blank import
import _ "github.com/chaisql/chai/driver"
// Create a sql/database DB instance
db, err := sql.Open("chai", "mydb")
if err != nil {
log.Fatal(err)
}
defer db.Close()
// Then use db as usual
res, err := db.ExecContext(...)
res, err := db.Query(...)
res, err := db.QueryRow(...)
// use the driver.Scanner to scan into a struct
var u User
err = res.Scan(driver.Scanner(&u))
```
## chai shell
The chai command line provides an SQL shell for database management:
```bash
go install github.com/chaisql/chai/cmd/chai@latest
```
Usage example:
```bash
# For in-memory database:
chai
# For disk-based database:
chai dirName
```
## Contributing
Contributions are welcome!
A big thanks to our [contributors](https://github.com/chaisql/chai/graphs/contributors)!
Made with [contrib.rocks](https://contrib.rocks).
For any questions or discussions, open an [issue](https://github.com/chaisql/chai/issues/new).