Enum TableRequirement

pub enum TableRequirement {
    AssertCreate,
    AssertTableUuid {
        uuid: Uuid,
    },
    AssertRefSnapshotId {
        ref: String,
        snapshot_id: i64,
    },
    AssertLastAssignedFieldId {
        last_assigned_field_id: i32,
    },
    AssertCurrentSchemaId {
        current_schema_id: i32,
    },
    AssertLastAssignedPartitionId {
        last_assigned_partition_id: i32,
    },
    AssertDefaultSpecId {
        default_spec_id: i32,
    },
    AssertDefaultSortOrderId {
        default_sort_order_id: i32,
    },
}

Requirements that must be met before applying updates to table metadata

This enum defines preconditions that must be satisfied before a table update can be committed. Requirements are checked atomically to prevent concurrent modifications from corrupting table state.

Requirements Types

• Table existence checks
• UUID validation
• Reference state validation
• Schema and partition spec version checks
• Sort order validation
• Column and partition ID validation

Each variant includes the specific values that must match the current table state.

Variants

AssertCreate

The table must not already exist; used for create transactions

AssertTableUuid

The table UUID must match the requirement’s uuid

Fields

uuid: Uuid

Uuid to assert

AssertRefSnapshotId

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

Fields

ref: String

Name of ref

snapshot_id: i64

Snapshot id

AssertLastAssignedFieldId

The table’s last assigned column id must match the requirement’s last-assigned-field-id

Fields

last_assigned_field_id: i32

Id of last assigned id

AssertCurrentSchemaId

The table’s current schema id must match the requirement’s current-schema-id

Fields

current_schema_id: i32

Current schema id

AssertLastAssignedPartitionId

The table’s last assigned partition id must match the requirement’s last-assigned-partition-id

Fields

last_assigned_partition_id: i32

id of last assigned partition

AssertDefaultSpecId

The table’s default spec id must match the requirement’s default-spec-id

Fields

default_spec_id: i32

Default spec id

AssertDefaultSortOrderId

The table’s default sort order id must match the requirement’s default-sort-order-id

Fields

default_sort_order_id: i32

Default sort order id

Trait Implementations

impl Clone for TableRequirement

fn clone(&self) -> TableRequirement

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TableRequirement

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TableRequirement

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TableRequirement

fn eq(&self, other: &TableRequirement) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for TableRequirement

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TableRequirement