



'''simple docstring'''

import multiprocessing
from typing import TYPE_CHECKING, Optional, Union

from .. import Dataset, Features, config
from ..formatting import query_table
from ..packaged_modules.sql.sql import Sql
from ..utils import logging
from .abc import AbstractDatasetInputStream


if TYPE_CHECKING:
				import sqlitea

				import sqlalchemy

class __snake_case(				_lowerCAmelCase ):


						'''simple docstring'''



						def __init__( self     ,	A_     ,	A_     ,	A_ = None     ,	A_ = None     ,	A_ = False     ,	**A_     ,	)     ->     Union[str, Any]:
							super().__init__(features=A_     ,	cache_dir=A_     ,	keep_in_memory=A_     ,	**A_				)
							lowerCAmelCase   =     Sql(
							    cache_dir=A_     ,	features=A_     ,	sql=A_     ,	con=A_     ,	**A_     ,	)




						def     __snake_case   ( self				)     ->     Optional[Any]:
							lowerCAmelCase   =     None
							lowerCAmelCase   =     None
							lowerCAmelCase   =     None
							lowerCAmelCase   =     None

							self.builder.download_and_prepare(
							    download_config=A_     ,	download_mode=A_     ,	verification_mode=A_     ,	base_path=A_     ,	)

							# Build dataset for splits
							lowerCAmelCase   =     self.builder.as_dataset(
							    split="""train"""     ,	verification_mode=A_     ,	in_memory=self.keep_in_memory				)
							return dataset







class __snake_case:


						'''simple docstring'''



						def __init__( self     ,	A_     ,	A_     ,	A_     ,	A_ = None     ,	A_ = None     ,	**A_     ,	)     ->     Tuple:
							if num_proc is not None and num_proc <= 0:
								raise ValueError(f'num_proc {num_proc} must be an integer > 0.'				)

							lowerCAmelCase   =     dataset
							lowerCAmelCase   =     name
							lowerCAmelCase   =     con
							lowerCAmelCase   =     batch_size if batch_size else config.DEFAULT_MAX_BATCH_SIZE
							lowerCAmelCase   =     num_proc
							lowerCAmelCase   =     to_sql_kwargs


						def     __snake_case   ( self				)     ->     int:
							lowerCAmelCase   =     self.to_sql_kwargs.pop("""sql"""     ,	A_				)
							lowerCAmelCase   =     self.to_sql_kwargs.pop("""con"""     ,	A_				)
							lowerCAmelCase   =     self.to_sql_kwargs.pop("""index"""     ,	A_				)

							lowerCAmelCase   =     self._write(index=A_     ,	**self.to_sql_kwargs				)
							return written


						def     __snake_case   ( self     ,	A_				)     ->     Optional[Any]:
							lowerCAmelCase,       lowerCAmelCase,       lowerCAmelCase   =     args
							lowerCAmelCase   =     {**to_sql_kwargs, """if_exists""": """append"""} if offset > 0 else to_sql_kwargs
							lowerCAmelCase   =     query_table(
							    table=self.dataset.data     ,	key=slice(A_     ,	offset + self.batch_size				)     ,	indices=self.dataset._indices     ,	)
							lowerCAmelCase   =     batch.to_pandas()
							lowerCAmelCase   =     df.to_sql(self.name     ,	self.con     ,	index=A_     ,	**A_				)
							return num_rows or len(A_				)




						def     __snake_case   ( self     ,	A_     ,	**A_				)     ->     int:
							lowerCAmelCase   =     0

							if self.num_proc is None or self.num_proc == 1:
								for offset in logging.tqdm(
								    range(0     ,	len(self.dataset				)     ,	self.batch_size				)     ,	unit="""ba"""     ,	disable=not logging.is_progress_bar_enabled()     ,	desc="""Creating SQL from Arrow format"""     ,	):
									written += self._batch_sql((offset, index, to_sql_kwargs)				)
							else:
								lowerCAmelCase,       lowerCAmelCase   =     len(self.dataset				), self.batch_size
								with multiprocessing.Pool(self.num_proc				) as pool:
									for num_rows in logging.tqdm(
									    pool.imap(
									        self._batch_sql     ,	[(offset, index, to_sql_kwargs) for offset in range(0     ,	A_     ,	A_				)]     ,	)     ,	total=(num_rows // batch_size) + 1 if num_rows % batch_size else num_rows // batch_size     ,	unit="""ba"""     ,	disable=not logging.is_progress_bar_enabled()     ,	desc="""Creating SQL from Arrow format"""     ,	):
										written += num_rows

							return written




'''simple docstring'''

class __snake_case:


						'''simple docstring'''



						def __init__( self				)     ->     None:
							lowerCAmelCase   =     {}  # Mapping from char to TrieNode
							lowerCAmelCase   =     False


						def     __snake_case   ( self     ,	A_				)     ->     None:
							for word in words:
								self.insert(A_				)


						def     __snake_case   ( self     ,	A_				)     ->     None:
							lowerCAmelCase   =     self
							for char in word:
								if char not in curr.nodes:
									lowerCAmelCase   =     TrieNode()
								lowerCAmelCase   =     curr.nodes[char]
							lowerCAmelCase   =     True


						def     __snake_case   ( self     ,	A_				)     ->     bool:
							lowerCAmelCase   =     self
							for char in word:
								if char not in curr.nodes:
									return False
								lowerCAmelCase   =     curr.nodes[char]
							return curr.is_leaf




						def     __snake_case   ( self     ,	A_				)     ->     None:

							def _delete(A_     ,	A_     ,	A_				) -> bool:
								if index == len(A_				):
									# If word does not exist
									if not curr.is_leaf:
										return False
									lowerCAmelCase   =     False
									return len(curr.nodes				) == 0
								lowerCAmelCase   =     word[index]
								lowerCAmelCase   =     curr.nodes.get(A_				)
								# If char not in current trie node
								if not char_node:
									return False
								# Flag to check if node can be deleted
								lowerCAmelCase   =     _delete(A_     ,	A_     ,	index + 1				)
								if delete_curr:
									del curr.nodes[char]
									return len(curr.nodes				) == 0
								return delete_curr

							_delete(self     ,	A_     ,	0				)







def 		_snake_case		( _SCREAMING_SNAKE_CASE					:						TrieNode							,		_SCREAMING_SNAKE_CASE					:						str							)      ->						None:







	"""simple docstring"""
	if node.is_leaf:
		print(_SCREAMING_SNAKE_CASE							,		end=""" """							)

	for key, value in node.nodes.items():
		print_words(_SCREAMING_SNAKE_CASE							,		word + key							)






def 		_snake_case		( )      ->						bool:







	"""simple docstring"""
	lowerCAmelCase   =     """banana bananas bandana band apple all beast""".split()
	lowerCAmelCase   =     TrieNode()
	root.insert_many(_SCREAMING_SNAKE_CASE							)
	# print_words(root, "")
	assert all(root.find(_SCREAMING_SNAKE_CASE							) for word in words							)
	assert root.find("""banana"""							)
	assert not root.find("""bandanas"""							)
	assert not root.find("""apps"""							)
	assert root.find("""apple"""							)
	assert root.find("""all"""							)
	root.delete("""all"""							)
	assert not root.find("""all"""							)
	root.delete("""banana"""							)
	assert not root.find("""banana"""							)
	assert root.find("""bananas"""							)
	return True






def 		_snake_case		( _SCREAMING_SNAKE_CASE					:						str							,		_SCREAMING_SNAKE_CASE					:						bool							)      ->						None:







	"""simple docstring"""
	print(str(_SCREAMING_SNAKE_CASE							)							,		"""works!""" if passes else """doesn't work :("""							)






def 		_snake_case		( )      ->						None:







	"""simple docstring"""
	assert test_trie()






def 		_snake_case		( )      ->						None:







	"""simple docstring"""
	print_results("""Testing trie functionality"""							,		test_trie()							)


if __name__ == "__main__":
				main()