/**
* Retrieve schema from the server
*/
private void retrieveSchema() throws SQLException {
try {
TGetResultSetMetadataReq metadataReq = new TGetResultSetMetadataReq(stmtHandle);
// TODO need session handle
TGetResultSetMetadataResp metadataResp = client.GetResultSetMetadata(metadataReq);
Utils.verifySuccess(metadataResp.getStatus());
StringBuilder namesSb = new StringBuilder();