{{define "copyfromCodeGoSqlDriver"}}
{{range .GoQueries}}
{{if eq .Cmd ":copyfrom" }}
var readerHandlerSequenceFor{{.MethodName}} uint32 = 1

func convertRowsFor{{.MethodName}}(w *io.PipeWriter, {{.Arg.SlicePair}}) {
	e := mysqltsv.NewEncoder(w, {{ len .Arg.CopyFromMySQLFields }}, nil)
	for _, row := range {{.Arg.Name}} {
{{- with $arg := .Arg }}
{{- range $arg.CopyFromMySQLFields}}
{{- if eq .Type "string"}}
	e.AppendString({{if $arg.Struct}}row.{{.Name}}{{else}}row{{end}})
{{- else if or (eq .Type "[]byte") (eq .Type "json.RawMessage")}}
	e.AppendBytes({{if $arg.Struct}}row.{{.Name}}{{else}}row{{end}})
{{- else}}
	e.AppendValue({{if $arg.Struct}}row.{{.Name}}{{else}}row{{end}})
{{- end}}
{{- end}}
{{- end}}
	}
	w.CloseWithError(e.Close())
}

{{range .Comments}}//{{.}}
{{end -}}
// {{.MethodName}} uses MySQL's LOAD DATA LOCAL INFILE and is not atomic.
//
// Errors and duplicate keys are treated as warnings and insertion will
// continue, even without an error for some cases.  Use this in a transaction
// and use SHOW WARNINGS to check for any problems and roll back if you want to.
//
// Check the documentation for more information:
// https://dev.mysql.com/doc/refman/8.0/en/load-data.html#load-data-error-handling
func (q *Queries) {{.MethodName}}(ctx context.Context{{if $.EmitMethodsWithDBArgument}}, db DBTX{{end}}, {{.Arg.SlicePair}}) (int64, error) {
	pr, pw := io.Pipe()
	defer pr.Close()
	rh := fmt.Sprintf("{{.MethodName}}_%d", atomic.AddUint32(&readerHandlerSequenceFor{{.MethodName}}, 1))
	mysql.RegisterReaderHandler(rh, func() io.Reader { return pr })
	defer mysql.DeregisterReaderHandler(rh)
	go convertRowsFor{{.MethodName}}(pw, {{.Arg.Name}})
	// The string interpolation is necessary because LOAD DATA INFILE requires
	// the file name to be given as a literal string.
	result, err := {{if (not $.EmitMethodsWithDBArgument)}}q.{{end}}db.ExecContext(ctx, fmt.Sprintf("LOAD DATA LOCAL INFILE '%s' INTO TABLE {{.TableIdentifierForMySQL}} %s ({{range $index, $name := .Arg.ColumnNames}}{{if gt $index 0}}, {{end}}{{$name}}{{end}})", "Reader::" + rh, mysqltsv.Escaping))
	if err != nil {
		return 0, err
	}
	return result.RowsAffected()
}

{{end}}
{{end}}
{{end}}