Representation of a column within a schema. Columns could be
nested inside other columns.
Attributes
Name
Description
column
str
Required. Name of the column.
type_
str
Required. Type of the column.
description
str
Optional. Description of the column. Default
value is an empty string.
mode
str
Optional. A column's mode indicates whether the values in
this column are required, nullable, etc. Only ``NULLABLE``,
``REQUIRED`` and ``REPEATED`` are supported. Default mode is
``NULLABLE``.
subcolumns
Sequence[google.cloud.datacatalog_v1beta1.types.ColumnSchema]
Optional. Schema of sub-columns. A column can
have zero or more sub-columns.