46 lines
961 B
Go
46 lines
961 B
Go
package main
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import (
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"database/sql"
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"fmt"
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"log"
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"github.com/mattn/go-sqlite3"
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)
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func main() {
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sql.Register("sqlite3_with_extensions", &sqlite3.SQLiteDriver{
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ConnectHook: func(conn *sqlite3.SQLiteConn) error {
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return conn.CreateModule("series", &seriesModule{})
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},
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})
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db, err := sql.Open("sqlite3_with_extensions", ":memory:")
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if err != nil {
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log.Fatal(err)
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}
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defer db.Close()
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for _, query := range []string{
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"select value from series where value between 3 and 5",
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"select value from series where start = 10 and stop = 20 and step = 5",
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"select value from series where start = 3 and stop = -3 and step = -2",
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} {
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fmt.Println(query)
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rows, err := db.Query(query)
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if err != nil {
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log.Fatal(err)
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}
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for rows.Next() {
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var value int
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if err := rows.Scan(&value); err != nil {
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log.Fatal(err)
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}
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fmt.Printf("value: %d\n", value)
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}
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if err := rows.Err(); err != nil {
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log.Fatal(err)
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}
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rows.Close()
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}
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}
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