docstr: Execute and fetch all rows as a pandas DataFrame
  
  Returns:
      pandas.DataFrame:
docstr_tok: ["Execute","and","fetch","all","rows","as","a","pandas","DataFrame","Returns",":","pandas.DataFrame",":"]
code: def show(self) -> pandas.DataFrame:
      """Execute and fetch all rows as a pandas DataFrame
  
      Returns:
          pandas.DataFrame:
      """
      batch = self.execute()
      assert batch is not None, "relation execute failed"
      return batch.frames
  
imports: from typing import Union
  import pandas
  from evadb.database import EvaDBDatabase
  from evadb.interfaces.relational.utils import create_limit_expression, create_star_expression, handle_select_clause, sql_predicate_to_expresssion_tree, sql_string_to_expresssion_list, string_to_lateral_join, try_binding
  from evadb.models.storage.batch import Batch
  from evadb.parser.alias import Alias
  from evadb.parser.select_statement import SelectStatement
  from evadb.parser.statement import AbstractStatement
  from evadb.parser.table_ref import JoinNode, TableRef
  from evadb.parser.types import JoinType
  from evadb.parser.utils import parse_sql_orderby_expr
  from evadb.server.command_handler import execute_statement
label_desc: Use image node_id 10 for calling the EvaDBQuery obj's underlying member method code with example usage: obj.show() and returns: batch