Column

Utilties to access a column and one field of a column if the column is composite.

class col.ColumnField

Bases: Expr

Inherited from Expr.

Representation of a field of a Column of composite type. This type allows to access to the fields in a dict-like manner.

class col.Column

Bases: Expr

Inherited from Expr.

Representation of a Python object Column.

__getitem__(field_name)

Get access to a field of the current column.

Parameters

field_name (str) – str

Returns

Field of the column with the specified name.

Return type

ColumnField