def create_table_sentence(hash)
      thrift_method = "createTable"
      thrift_table = hash[:table]
      thrift_columns = []
      hash[:columns].each do |col_name|
        col_descriptor = Hbase::ColumnDescriptor.new
        col_descriptor.name = col_name
        thrift_columns << col_descriptor
      end
      
      HipsterSqlToHbase::ThriftCallGroup.new([{:method => thrift_method,:arguments => [thrift_table,thrift_columns]}])
    end
def create_table_sentence(hash)
      thrift_method = "createTable"
      thrift_table = hash[:table]
      thrift_columns = []
      hash[:columns].each do |col_name|
        col_descriptor = Hbase::ColumnDescriptor.new
        col_descriptor.name = col_name
        thrift_columns << col_descriptor
      end
      
      HipsterSqlToHbase::ThriftCallGroup.new([{:method => thrift_method,:arguments => [thrift_table,thrift_columns]}])
    end
When SQL sentence is a CREATE TABLE query generate the Thrift column descriptors/families
 in accordance to the specified query values.