<RequestProgress>
        <Enabled>FALSE</Enabled>
    </RequestProgress>
</SelectObjectContentRequest>`),
			wantResult: `"[""foo"",""bar"",""whatever""]"`,
		},
		{
			name:  "document",
			query: "",
			requestXML: []byte(`
<?xml version="1.0" encoding="UTF-8"?>
<SelectObjectContentRequest>
    <Expression>select * from s3object[*].elements[*] s where s.element_type = '__elem__merfu'</Expression>

	progressReader *progressReader
	recordReader   recordReader
}

var legacyXMLName = "SelectObjectContentRequest"

// UnmarshalXML - decodes XML data.
func (s3Select *S3Select) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	// S3 also supports the older SelectObjectContentRequest tag,
	// though it is no longer found in documentation. This is
	// checked and renamed below to allow older clients to also