public com.google.spanner.v1.ResultSetMetadata getMetadata() {
    return metadata_ == null
        ? com.google.spanner.v1.ResultSetMetadata.getDefaultInstance()
        : metadata_;
  }
public com . google . spanner . v1 . ResultSetMetadata getMetadata ( ) { return metadata_ == null ? com . google . spanner . v1 . ResultSetMetadata . getDefaultInstance ( ) : metadata_ ; }
<pre>
Metadata about the result set, such as row type information.
Only present in the first response.
</pre>

<code>.google.spanner.v1.ResultSetMetadata metadata = 1;</code>