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:mod:`airflow.providers.apache.hive.transfers.mssql_to_hive`
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.. py:module:: airflow.providers.apache.hive.transfers.mssql_to_hive
.. autoapi-nested-parse::
This module contains operator to move data from MSSQL to Hive.
Module Contents
---------------
.. py:class:: MsSqlToHiveOperator(*, sql: str, hive_table: str, create: bool = True, recreate: bool = False, partition: Optional[Dict] = None, delimiter: str = chr(1), mssql_conn_id: str = 'mssql_default', hive_cli_conn_id: str = 'hive_cli_default', tblproperties: Optional[Dict] = None, **kwargs)
Bases: :class:`airflow.models.BaseOperator`
Moves data from Microsoft SQL Server to Hive. The operator runs
your query against Microsoft SQL Server, stores the file locally
before loading it into a Hive table. If the ``create`` or
``recreate`` arguments are set to ``True``,
a ``CREATE TABLE`` and ``DROP TABLE`` statements are generated.
Hive data types are inferred from the cursor's metadata.
Note that the table generated in Hive uses ``STORED AS textfile``
which isn't the most efficient serialization format. If a
large amount of data is loaded and/or if the table gets
queried considerably, you may want to use this operator only to
stage the data into a temporary table before loading it into its
final destination using a ``HiveOperator``.
:param sql: SQL query to execute against the Microsoft SQL Server
database. (templated)
:type sql: str
:param hive_table: target Hive table, use dot notation to target a specific
database. (templated)
:type hive_table: str
:param create: whether to create the table if it doesn't exist
:type create: bool
:param recreate: whether to drop and recreate the table at every execution
:type recreate: bool
:param partition: target partition as a dict of partition columns and
values. (templated)
:type partition: dict
:param delimiter: field delimiter in the file
:type delimiter: str
:param mssql_conn_id: source Microsoft SQL Server connection
:type mssql_conn_id: str
:param hive_conn_id: destination hive connection
:type hive_conn_id: str
:param tblproperties: TBLPROPERTIES of the hive table being created
:type tblproperties: dict
.. attribute:: template_fields
:annotation: = ['sql', 'partition', 'hive_table']
.. attribute:: template_ext
:annotation: = ['.sql']
.. attribute:: ui_color
:annotation: = #a0e08c
.. classmethod:: type_map(cls, mssql_type: int)
Maps MsSQL type to Hive type.
.. method:: execute(self, context: Dict[str, str])