class PandasCursor(BaseCursor, CursorIterator, WithResultSet):
def __init__(self,
connection,
s3_staging_dir,
schema_name,
work_group,
poll_interval,
encryption_option,
kms_key,
converter,
formatter,
retry_config,
kill_on_interrupt=True,
**kwargs):
super(PandasCursor, self).__init__(connection=connection,
s3_staging_dir=s3_staging_dir,
schema_name=schema_name,
work_group=work_group,
poll_interval=poll_interval,
encryption_option=encryption_option,
kms_key=kms_key,
converter=converter,
formatter=formatter,
retry_config=retry_config,
kill_on_interrupt=kill_on_interrupt,
**kwargs)
@property
def rownumber(self):
return self._result_set.rownumber if self._result_set else None
def close(self):
if self._result_set and not self._result_set.is_closed:
self._result_set.close()
@synchronized
def execute(
self,
operation,
parameters=None,
work_group=None,
s3_staging_dir=None,
cache_size=0,
keep_default_na=False,
na_values=None,
quoting=1,
):
self._reset_state()
self._query_id = self._execute(
operation,
parameters=parameters,
work_group=work_group,
s3_staging_dir=s3_staging_dir,
cache_size=cache_size,
)
query_execution = self._poll(self._query_id)
if query_execution.state == AthenaQueryExecution.STATE_SUCCEEDED:
self._result_set = AthenaPandasResultSet(
connection=self._connection,
converter=self._converter,
query_execution=query_execution,
arraysize=self.arraysize,
retry_config=self._retry_config,
keep_default_na=keep_default_na,
na_values=na_values,
quoting=quoting,
)
else:
raise OperationalError(query_execution.state_change_reason)
return self
def executemany(self, operation, seq_of_parameters):
for parameters in seq_of_parameters:
self.execute(operation, parameters)
# Operations that have result sets are not allowed with executemany.
self._reset_state()
@synchronized
def cancel(self):
if not self._query_id:
raise ProgrammingError("QueryExecutionId is none or empty.")
self._cancel(self._query_id)
@synchronized
def fetchone(self):
if not self.has_result_set:
raise ProgrammingError("No result set.")
return self._result_set.fetchone()
@synchronized
def fetchmany(self, size=None):
if not self.has_result_set:
raise ProgrammingError("No result set.")
return self._result_set.fetchmany(size)
@synchronized
def fetchall(self):
if not self.has_result_set:
raise ProgrammingError("No result set.")
return self._result_set.fetchall()
@synchronized
def as_pandas(self):
if not self.has_result_set:
raise ProgrammingError("No result set.")
return self._result_set.as_pandas()
class PandasCursor(BaseCursor, CursorIterator, WithResultSet):
def __init__(self, connection, s3_staging_dir, schema_name, work_group,
poll_interval, encryption_option, kms_key, converter,
formatter, retry_config, **kwargs):
super(PandasCursor, self).__init__(connection=connection,
s3_staging_dir=s3_staging_dir,
schema_name=schema_name,
work_group=work_group,
poll_interval=poll_interval,
encryption_option=encryption_option,
kms_key=kms_key,
converter=converter,
formatter=formatter,
retry_config=retry_config,
**kwargs)
@property
def rownumber(self):
return self._result_set.rownumber if self._result_set else None
def close(self):
if self._result_set and not self._result_set.is_closed:
self._result_set.close()
@synchronized
def execute(self,
operation,
parameters=None,
work_group=None,
s3_staging_dir=None,
cache_size=0):
self._reset_state()
self._query_id = self._execute(operation,
parameters=parameters,
work_group=work_group,
s3_staging_dir=s3_staging_dir,
cache_size=cache_size)
query_execution = self._poll(self._query_id)
if query_execution.state == AthenaQueryExecution.STATE_SUCCEEDED:
self._result_set = AthenaPandasResultSet(self._connection,
self._converter,
query_execution,
self.arraysize,
self._retry_config)
else:
raise OperationalError(query_execution.state_change_reason)
return self
def executemany(self, operation, seq_of_parameters):
raise NotSupportedError
@synchronized
def cancel(self):
if not self._query_id:
raise ProgrammingError('QueryExecutionId is none or empty.')
self._cancel(self._query_id)
@synchronized
def fetchone(self):
if not self.has_result_set:
raise ProgrammingError('No result set.')
return self._result_set.fetchone()
@synchronized
def fetchmany(self, size=None):
if not self.has_result_set:
raise ProgrammingError('No result set.')
return self._result_set.fetchmany(size)
@synchronized
def fetchall(self):
if not self.has_result_set:
raise ProgrammingError('No result set.')
return self._result_set.fetchall()
@synchronized
def as_pandas(self):
if not self.has_result_set:
raise ProgrammingError('No result set.')
return self._result_set.as_pandas()