presto-mongodb/src/main/java/io/prestosql/plugin/mongodb/MongoMetadata.java/MongoMetadata/getTableHandle
class MongoMetadata:    @Override
    public MongoTableHandle getTableHandle(ConnectorSession session, SchemaTableName tableName)
    {
        requireNonNull(tableName, "tableName is null");
        try {
            return mongoSession.getTable(tableName).getTableHandle();
        }
        catch (TableNotFoundException e) {
            log.debug(e, "Table(%s) not found", tableName);
            return null;
        }
    }