go rename

examples/simple-go-cgo/.gitignore

@@ -0,0 +1 @@
+demo

examples/simple-go-cgo/Makefile

@@ -0,0 +1,2 @@
+demo: demo.go go.mod go.sum
+	go build -o $@

examples/simple-go-cgo/demo.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+
+	sqlite_vec "github.com/asg017/sqlite-vec-go-bindings/cgo"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+func main() {
+	sqlite_vec.Auto()
+	db, err := sql.Open("sqlite3", ":memory:")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+
+	var sqliteVersion string
+	var vecVersion string
+	err = db.QueryRow("select sqlite_version(), vec_version()").Scan(&sqliteVersion, &vecVersion)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Printf("sqlite_version=%s, vec_version=%s\n", sqliteVersion, vecVersion)
+
+	_, err = db.Exec("CREATE VIRTUAL TABLE vec_items USING vec0(embedding float[4])")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	items := map[int][]float32{
+		1: {0.1, 0.1, 0.1, 0.1},
+		2: {0.2, 0.2, 0.2, 0.2},
+		3: {0.3, 0.3, 0.3, 0.3},
+		4: {0.4, 0.4, 0.4, 0.4},
+		5: {0.5, 0.5, 0.5, 0.5},
+	}
+	q := []float32{0.3, 0.3, 0.3, 0.3}
+
+	for id, values := range items {
+		v, err := sqlite_vec.SerializeFloat32(values)
+		if err != nil {
+			log.Fatal(err)
+		}
+		_, err = db.Exec("INSERT INTO vec_items(rowid, embedding) VALUES (?, ?)", id, v)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	query, err := sqlite_vec.SerializeFloat32(q)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	rows, err := db.Query(`
+		SELECT
+			rowid,
+			distance
+		FROM vec_items
+		WHERE embedding MATCH ?
+		ORDER BY distance
+		LIMIT 3
+	`, query)
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for rows.Next() {
+		var rowid int64
+		var distance float64
+		err = rows.Scan(&rowid, &distance)
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Printf("rowid=%d, distance=%f\n", rowid, distance)
+	}
+	err = rows.Err()
+	if err != nil {
+		log.Fatal((err))
+	}
+
+}

examples/simple-go-cgo/go.mod

@@ -0,0 +1,7 @@
+module github.com/asg017/sqlite-vec/examples/go
+
+go 1.22.5
+
+require github.com/mattn/go-sqlite3 v1.14.22
+
+require github.com/asg017/sqlite-vec-go-bindings v0.0.1-alpha.36 // indirect

examples/simple-go-cgo/go.sum

@@ -0,0 +1,6 @@
+github.com/asg017/sqlite-vec-go-bindings v0.0.1-alpha.36 h1:FMGkKAA7nZL8gr/dvIx1uc54J3v2gbLVa+mLqZDCvjk=
+github.com/asg017/sqlite-vec-go-bindings v0.0.1-alpha.36/go.mod h1:A8+cTt/nKFsYCQF6OgzSNpKZrzNo5gQsXBTfsXHXY0Q=
+github.com/asg017/sqlite-vec/bindings/go/cgo v0.0.0-20240511043328-3d763f499859 h1:6jeFy/tSnyNJUrTHoIaFTYkjrHtwVAojvCGkr9G8d4o=
+github.com/asg017/sqlite-vec/bindings/go/cgo v0.0.0-20240511043328-3d763f499859/go.mod h1:Go89G54PaautWRwxvAa1fmKeYoSuUyIvSYpvlfXQaNU=
+github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o4kU=
+github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=