func AddPrepared(prepared *Prepared) errors.Error {
if cache.peek(prepared) {
return errors.NewPreparedNameError(
fmt.Sprintf("duplicate name: %s", prepared.Name()))
}
cache.add(prepared)
return nil
}
func (this *builder) VisitPrepare(stmt *algebra.Prepare) (interface{}, error) {
pl, err := BuildPrepared(stmt.Statement(), this.datastore, this.systemstore, this.namespace, false)
if err != nil {
return nil, err
}
if stmt.Name() == "" {
uuid, err := util.UUID()
if err != nil {
return nil, errors.NewPreparedNameError(err.Error())
}
pl.SetName(uuid)
} else {
pl.SetName(stmt.Name())
}
pl.SetText(stmt.Text())
json_bytes, err := pl.MarshalJSON()
if err != nil {
return nil, err
}
var b bytes.Buffer
w := gzip.NewWriter(&b)
w.Write(json_bytes)
w.Close()
str := base64.StdEncoding.EncodeToString(b.Bytes())
pl.SetEncodedPlan(str)
val := value.NewValue(json_bytes)
err = val.SetField("encoded_plan", value.NewValue(str))
if err != nil {
return nil, err
}
err = plan.AddPrepared(pl)
if err != nil {
return nil, err
}
return plan.NewPrepare(val), nil
}