cycquery.ops.Keep¶

class Keep(cols)[source]¶

Keep only the specified columns in a table.

Parameters:: cols (Union[str, List[str]]) – The columns to keep.

Examples

>>> Keep("col1")(table)
>>> Keep(["col1", "col2"])(table)

Methods

__call__(table)[source]¶

Process the table.

Parameters:: table (Union[Select, Subquery, Table, DBTable]) – Table on which to perform the operation.
Returns:: Processed table.
Return type:: sqlalchemy.sql.selectable.Subquery