How to write incrementally to html template in go - go

Question

I'm building a web based data browser called Mavgo Flight.
I want large tables from sqlite to print continuously instead of the default behavior of only printing when all the data is available. I tried running the template per row of data which fails.
func renderHTMLTable(w http.ResponseWriter, result *sqlx.Rows) {
cols, err := result.Columns()
if err != nil {
log.Println(err, "renderHTMLTable")
return
}
tmpl, err := template.ParseFiles("./templates/2d.html")
if err != nil {
log.Println("template failed", err)
return
}
data := HTMLTable{}
data.Cols = cols
for result.Next() {
cols, err := result.SliceScan()
if err != nil {
log.Println(w, err)
break
}
s := make([]string, len(cols))
for i, v := range cols {
s[i] = fmt.Sprint(v)
}
tmpl.Execute(w, s)
}
}

Answer 1

I gave up on being clever did exactly what Cerise suggested
The function that writes rows incrementally:
func renderHTMLTable(w http.ResponseWriter, result *sqlx.Rows) {
cols, err := result.Columns()
if err != nil {
log.Println(err, "renderHTMLTable")
return
}
head, err := template.ParseFiles("./templates/head.html")
if err != nil {
log.Println("template failed", err)
return
}
row, err := template.ParseFiles("./templates/row.html")
if err != nil {
log.Println("template failed", err)
return
}
foot := ` </tbody>
</table>
</div>
</body>
</html>`
head.Execute(w, cols)
s := make([]string, len(cols))
for result.Next() {
values, err := result.SliceScan()
if err != nil {
log.Println(w, err)
break
}
for i, v := range values {
s[i] = fmt.Sprint(v)
}
row.Execute(w, s)
}
fmt.Fprint(w, foot)
}