Method describe_table

tests/comparison/db_connection.py:419–429

Return a Table with table and col names always in lowercase.

(self, table_name)

    return table

  def describe_table(self, table_name):
    '''Return a Table with table and col names always in lowercase.'''
    describe_rows = self.execute_and_fetchall(self.make_describe_table_sql(table_name))
    table = self.create_table_from_describe(table_name, describe_rows)
    # IMPALA-14398: Commenting this because, testing with Python 3.8, it hit
    #   dbm.error: db type could not be determined
    # Commenting it does not affect any existing infra tests.
    # Need to revisit if persist_unique_col_metadata and load_unique_col_metadata
    # is still needed.
    # self.load_unique_col_metadata(table)
    return table

  def make_describe_table_sql(self, table_name):
    return 'DESCRIBE ' + table_name