go-base

Simple database engine created with golang just for fun.

Note: Currently query based db not working properly, any kind of contributions are welcome.

Todo:

• Create cli (querydb)
• Execute query file (querydb)
• implement writing data (querydb)
• implement b-tree for reading data (querydb)

Usage

In-memory key value based db

Run simple key value db from command line:

go run main.go mapdb-cli

query based db

Run query on command line:

go run main.go cli

Run query from file

go run main.go run file.sql

Supported commands:

• Database oparations

  • Create database

    create db [blog]

  • Drop database

    drop db [blog]

  • Select database

    set db [blog]

• Document oparations

  • Create document:

    create doc [user]

  • Insert data into document:

    insert [user] {firstName} 'sojeb' {lastName} 'sikder'

How go-base query based db works under the hood

In the first place go-base takes query. Then go-base engine splits query into statement using semi-clone (;) seperator. Each statements goes to tokenizer for generating tokens. All the tokens goes to perser. Perser perse the statement with brackets, quotation delimiter etc. And all the parsed data goes to main operation unit for processing.