Schema(mapping=None, *, ignore_unknown_fields=False, **kwargs)Schema information describing the structure and layout of the data.
Attributes |
|
|---|---|
| Name | Description |
user_managed |
bool
Required. Set to true if user-managed or false if
managed by Dataplex Universal Catalog. The default is
false (managed by Dataplex Universal Catalog).
- Set to false\ to enable Dataplex Universal Catalog
discovery to update the schema. including new data
discovery, schema inference, and schema evolution. Users
retain the ability to input and edit the schema. Dataplex
Universal Catalog treats schema input by the user as
though produced by a previous Dataplex Universal Catalog
discovery operation, and it will evolve the schema and
take action based on that treatment.
- Set to true to fully manage the entity schema. This
setting guarantees that Dataplex Universal Catalog will
not change schema fields.
|
fields |
MutableSequence[google.cloud.dataplex_v1.types.Schema.SchemaField]
Optional. The sequence of fields describing data in table entities. **Note:** BigQuery SchemaFields are immutable. |
partition_fields |
MutableSequence[google.cloud.dataplex_v1.types.Schema.PartitionField]
Optional. The sequence of fields describing the partition structure in entities. If this field is empty, there are no partitions within the data. |
partition_style |
google.cloud.dataplex_v1.types.Schema.PartitionStyle
Optional. The structure of paths containing partition data within the entity. |
Classes
Mode
Mode(value)Additional qualifiers to define field semantics.
PartitionField
PartitionField(mapping=None, *, ignore_unknown_fields=False, **kwargs)Represents a key field within the entity's partition structure. You could have up to 20 partition fields, but only the first 10 partitions have the filtering ability due to performance consideration. Note: Partition fields are immutable.
PartitionStyle
PartitionStyle(value)The structure of paths within the entity, which represent partitions.
SchemaField
SchemaField(mapping=None, *, ignore_unknown_fields=False, **kwargs)Represents a column field within a table schema.
Type
Type(value)Type information for fields in schemas and partition schemas.