When should I call Close on connection?

[pankajsoni19]

I am setting up the connection as

conn, _ := clickhouse.Open(
		&clickhouse.Options{
			Addr: []string{
				fmt.Sprintf("%s:9000", conf.Hostname),
			},
			MaxOpenConns:    5,
			MaxIdleConns:    1,
			ConnMaxLifetime: 10 * time.Minute,
			Auth: clickhouse.Auth{
				Database: conf.Database,
				Username: conf.Username,
				Password: conf.Password,
			}})
	

Do I need to call conn.Close() after conn.Exec ?
Do I need to call conn.Close() after conn.Select ?
Do I need to call conn.Close() after conn.QueryRow().ScanStruct() ?

[pankajsoni19]

Logged as a ticket here #1347
As this is more of an issue with pooling