Copy Column

Smoke Test:

>>> import shutil
>>> shutil.copy("examples/fintech/database.csv.zip", "examples/fintech/data/processed/database.csv.zip")
'examples/fintech/data/processed/database.csv.zip'

>>> from techminer2.operations import CopyColumn
>>> (
...     CopyColumn()
...     .with_source_field("author_keywords")
...     .with_target_field("author_keywords_copy")
...     .where_root_directory("examples/fintech/")
...     .run()
... )

>>> # Query the database to test the operator
>>> from techminer2.io import Query
>>> (
...     Query()
...     .with_query_expression("SELECT author_keywords_copy FROM database LIMIT 5;")
...     .where_root_directory("examples/fintech/")
...     .where_database("main")
...     .where_record_years_range(None, None)
...     .where_record_citations_range(None, None)
...     #
...     .run()
... )
                                author_keywords_copy
0  ELABORATION_LIKELIHOOD_MODEL; FINTECH; K_PAY; ...
1  ACTOR_NETWORK_THEORY; CHINESE_TELECOM; FINTECH...
2  FINANCIAL_INCLUSION; FINANCIAL_SCENARIZATION; ...
3                 BANKING_INNOVATIONS; FINTECH; RISK
4  BEHAVIOURAL_ECONOMICS; DIGITAL_TECHNOLOGIES; F...

>>> # Deletes the field
>>> from techminer2.database.operators import DeleteOperator
>>> DeleteOperator(
...     field="author_keywords_copy",
...     root_directory="examples/fintech/",
... ).run()

class techminer2.operations.copy_column.CopyColumn(**kwargs)

Bases: ParamsMixin

run() → int