Class DelimitedKey (2.43.0)

DelimitedKey(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Row key definition based on fields from the message.

Attributes

Name Description
key_fields :noindex: MutableSequence[str]
Required. The key fields to construct from the row key. The fields must be present in the message as a top-level field, i.e. JSON path expressions will not traverse into nested objects.
delimiter :noindex: bytes
Optional. Byte sequence used to delimit concatenated fields. Must be specified if multiple key fields are used. The delimiter must contain at least 1 character and at most 50 characters.