Fokko commented on PR #7710:
URL: https://github.com/apache/iceberg/pull/7710#issuecomment-1575557040
Alright, now I have it right:
```python
class TableRequirement(BaseModel):
name: Optional[str] = None
class AssertCreate(TableRequirement):
"""
The table must not already exist; used for create transactions
"""
type: Literal['assert-create']
class AssertTableUUID(TableRequirement):
"""
The table UUID must match the requirement's `uuid`
"""
type: Literal['assert-table-uuid']
uuid: str
class AssertRefSnapshotId(TableRequirement):
"""
The table branch or tag identified by the requirement's `ref` must
reference the requirement's `snapshot-id`; if `snapshot-id` is `null` or
missing, the ref must not already exist
"""
type: Literal['assert-ref-snapshot-id']
ref: str
snapshot_id: int = Field(..., alias='snapshot-id')
class AssertLastAssignedFieldId(TableRequirement):
"""
The table's last assigned column id must match the requirement's
`last-assigned-field-id`
"""
type: Literal['assert-last-assigned-field-id']
last_assigned_field_id: int = Field(..., alias='last-assigned-field-id')
class AssertCurrentSchemaId(TableRequirement):
"""
The table's current schema id must match the requirement's
`current-schema-id`
"""
type: Literal['assert-current-schema-id']
current_schema_id: int = Field(..., alias='current-schema-id')
class AssertLastAssignedPartitionId(TableRequirement):
"""
The table's last assigned partition id must match the requirement's
`last-assigned-partition-id`
"""
type: Literal['assert-last-assigned-partition-id']
last_assigned_partition_id: int = Field(...,
alias='last-assigned-partition-id')
class AssertDefaultSpecId(TableRequirement):
"""
The table's default spec id must match the requirement's
`default-spec-id`
"""
type: Literal['assert-default-spec-id']
default_spec_id: int = Field(..., alias='default-spec-id')
class AssertDefaultSortOrderId(TableRequirement):
"""
The table's default sort order id must match the requirement's
`default-sort-order-id`
"""
type: Literal['assert-default-sort-order-id']
default_sort_order_id: int = Field(..., alias='default-sort-order-id')
```
The inheritance tree now checks out.
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