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115 lines
6.6 KiB
Markdown
115 lines
6.6 KiB
Markdown
# Go bindings to SQLite using Wazero
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[](https://pkg.go.dev/github.com/ncruces/go-sqlite3)
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[](https://goreportcard.com/report/github.com/ncruces/go-sqlite3)
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[](https://github.com/ncruces/go-sqlite3/wiki/Test-coverage-report)
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Go module `github.com/ncruces/go-sqlite3` is a `cgo`-free [SQLite](https://sqlite.org/) wrapper.\
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It provides a [`database/sql`](https://pkg.go.dev/database/sql) compatible driver,
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as well as direct access to most of the [C SQLite API](https://sqlite.org/cintro.html).
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It wraps a [Wasm](https://webassembly.org/) [build](embed/) of SQLite,
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and uses [wazero](https://wazero.io/) as the runtime.\
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Go, wazero and [`x/sys`](https://pkg.go.dev/golang.org/x/sys) are the _only_ runtime dependencies [^1].
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### Packages
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- [`github.com/ncruces/go-sqlite3`](https://pkg.go.dev/github.com/ncruces/go-sqlite3)
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wraps the [C SQLite API](https://sqlite.org/cintro.html)
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([example usage](https://pkg.go.dev/github.com/ncruces/go-sqlite3#example-package)).
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- [`github.com/ncruces/go-sqlite3/driver`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/driver)
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provides a [`database/sql`](https://pkg.go.dev/database/sql) driver
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([example usage](https://pkg.go.dev/github.com/ncruces/go-sqlite3/driver#example-package)).
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- [`github.com/ncruces/go-sqlite3/embed`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/embed)
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embeds a build of SQLite into your application.
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- [`github.com/ncruces/go-sqlite3/vfs`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs)
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wraps the [C SQLite VFS API](https://sqlite.org/vfs.html) and provides a pure Go implementation.
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- [`github.com/ncruces/go-sqlite3/gormlite`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/gormlite)
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provides a [GORM](https://gorm.io) driver.
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### Extensions
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- [`github.com/ncruces/go-sqlite3/ext/array`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/array)
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provides the [`array`](https://sqlite.org/carray.html) table-valued function.
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- [`github.com/ncruces/go-sqlite3/ext/blobio`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/blobio)
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simplifies [incremental BLOB I/O](https://sqlite.org/c3ref/blob_open.html).
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- [`github.com/ncruces/go-sqlite3/ext/bloom`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/bloom)
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provides a [Bloom filter](https://github.com/nalgeon/sqlean/issues/27#issuecomment-1002267134) virtual table.
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- [`github.com/ncruces/go-sqlite3/ext/csv`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/csv)
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reads [comma-separated values](https://sqlite.org/csv.html).
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- [`github.com/ncruces/go-sqlite3/ext/fileio`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/fileio)
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reads, writes and lists files.
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- [`github.com/ncruces/go-sqlite3/ext/hash`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/hash)
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provides cryptographic hash functions.
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- [`github.com/ncruces/go-sqlite3/ext/lines`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/lines)
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reads data [line-by-line](https://github.com/asg017/sqlite-lines).
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- [`github.com/ncruces/go-sqlite3/ext/pivot`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/pivot)
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creates [pivot tables](https://github.com/jakethaw/pivot_vtab).
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- [`github.com/ncruces/go-sqlite3/ext/statement`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/statement)
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creates [parameterized views](https://github.com/0x09/sqlite-statement-vtab).
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- [`github.com/ncruces/go-sqlite3/ext/stats`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/stats)
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provides [statistics](https://www.oreilly.com/library/view/sql-in-a/9780596155322/ch04s02.html) functions.
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- [`github.com/ncruces/go-sqlite3/ext/unicode`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/unicode)
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provides [Unicode aware](https://sqlite.org/src/dir/ext/icu) functions.
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- [`github.com/ncruces/go-sqlite3/ext/zorder`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/ext/zorder)
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maps multidimensional data to one dimension.
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- [`github.com/ncruces/go-sqlite3/vfs/adiantum`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/adiantum)
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wraps a VFS to offer encryption at rest.
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- [`github.com/ncruces/go-sqlite3/vfs/memdb`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/memdb)
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implements an in-memory VFS.
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- [`github.com/ncruces/go-sqlite3/vfs/readervfs`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/readervfs)
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implements a VFS for immutable databases.
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### Advanced features
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- [incremental BLOB I/O](https://sqlite.org/c3ref/blob_open.html)
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- [nested transactions](https://sqlite.org/lang_savepoint.html)
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- [custom functions](https://sqlite.org/c3ref/create_function.html)
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- [virtual tables](https://sqlite.org/vtab.html)
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- [custom VFSes](https://sqlite.org/vfs.html)
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- [online backup](https://sqlite.org/backup.html)
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- [JSON support](https://sqlite.org/json1.html)
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- [math functions](https://sqlite.org/lang_mathfunc.html)
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- [full-text search](https://sqlite.org/fts5.html)
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- [geospatial search](https://sqlite.org/geopoly.html)
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- [encryption at rest](vfs/adiantum/README.md)
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- [and more…](embed/README.md)
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### Caveats
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This module replaces the SQLite [OS Interface](https://sqlite.org/vfs.html)
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(aka VFS) with a [pure Go](vfs/) implementation,
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which has advantages and disadvantages.
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Read more about the Go VFS design [here](vfs/README.md).
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### Testing
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This project aims for [high test coverage](https://github.com/ncruces/go-sqlite3/wiki/Test-coverage-report).
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It also benefits greatly from [SQLite's](https://sqlite.org/testing.html) and
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[wazero's](https://tetrate.io/blog/introducing-wazero-from-tetrate/#:~:text=Rock%2Dsolid%20test%20approach) thorough testing.
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Every commit is [tested](.github/workflows/test.yml) on
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Linux (amd64/arm64/386/riscv64/s390x), macOS (amd64/arm64),
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Windows (amd64), FreeBSD (amd64), illumos (amd64), and Solaris (amd64).
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The Go VFS is tested by running SQLite's
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[mptest](https://github.com/sqlite/sqlite/blob/master/mptest/mptest.c).
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### Performance
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Perfomance of the [`database/sql`](https://pkg.go.dev/database/sql) driver is
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[competitive](https://github.com/cvilsmeier/go-sqlite-bench) with alternatives.
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The Wasm and VFS layers are also tested by running SQLite's
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[speedtest1](https://github.com/sqlite/sqlite/blob/master/test/speedtest1.c).
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### Alternatives
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- [`modernc.org/sqlite`](https://pkg.go.dev/modernc.org/sqlite)
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- [`crawshaw.io/sqlite`](https://pkg.go.dev/crawshaw.io/sqlite)
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- [`github.com/mattn/go-sqlite3`](https://pkg.go.dev/github.com/mattn/go-sqlite3)
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- [`github.com/zombiezen/go-sqlite`](https://pkg.go.dev/github.com/zombiezen/go-sqlite)
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[^1]: anything else you find in `go.mod` is either a test dependency,
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or needed by one of the extensions.
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