0.1.5

v0.1.5

SQLite support

Full SQLite database support with type codecs via the new wasm-sql:sqlite/host WIT world.

SQLite codecs:

• Raw storage types: int64, float64, string, blob
• Semantic types: bool, json, uuid, date, time, datetime, datetime-utc

Usage:

[dependencies]
wasm-sql = { version = "0.1.5", features = ["sqlite"] }

Shared codec utilities

Common codec logic (json, uuid, date, time) extracted into codec_utils module, shared between PostgreSQL and SQLite implementations. This reduces duplication and ensures consistent behavior across databases.

PostgreSQL dependency cleanup

PostgreSQL-only dependencies (bigdecimal, ipnet, mac_address) are now behind the postgres feature flag and no longer pulled in for SQLite builds.

0.1.0

🚀 v0.1.0 - Initial Release

First public release of wasm-sql — Wasmtime host capability for SQL database access from WebAssembly components.

✨ Features

Core

• Connection pooling via sqlx
• Full transaction support (begin/commit/rollback) with automatic rollback on drop
• Async API using wasmtime component model
• Explicit release() for connection resources (useful for guest languages with GC)
• Pool state inspection

🐘 PostgreSQL Codecs

Full set of type codecs for encoding query arguments and decoding results:

Category	Types
Integers	int16, int32, int64
Floats	float32, float64
Text	string, json
Boolean	bool
Identifiers	uuid
Key-Value	hstore
Date/Time	date, time, timestamp, timestamptz, interval
Network	inet, cidr, macaddr
Numeric	numeric (arbitrary precision)

All codecs support NULL values via Option types.

⚠️ Requirements

This library uses experimental async features from the wasmtime component model:

• wasmtime 0.41+
• wit-bindgen 0.51+

📦 Installation

[dependencies]
wasm-sql = { version = "0.1", features = ["postgres"] }

🔜 Roadmap

• SQLite support (driver ready, codecs pending)
• MySQL support (driver ready, codecs pending)