Struct TableHierarchy 

pub struct TableHierarchy {
    pub parents: Vec<String>,
    pub parent_sequence_numbers: Vec<i32>,
    pub partition_spec: Option<PartitionSpec>,
    pub partition_bound: Option<PartitionBound>,
    pub local_columns: Vec<String>,
    pub partition_identity_overrides: Vec<PartitionIdentityOverride>,
    pub partition_inherited_key_constraints: Vec<TableKeyConstraint>,
    pub partition_inherited_foreign_keys: Vec<ForeignKey>,
}

Metadata shared by ordinary inheritance and declarative partitioning.

Fields

parents: Vec<String>

Direct parents in declaration order. Names are parse-time identities in the statement AST and canonical catalog identities after registration.

parent_sequence_numbers: Vec<i32>

Durable pg_inherits.inhseqno values aligned with parents. Catalogs written before ALTER inheritance support leave this empty and therefore use the declaration-order sequence 1..=parents.len().

partition_spec: Option<PartitionSpec>

Partition key owned by a partitioned relation.

partition_bound: Option<PartitionBound>

Bound owned by a child declared with PARTITION OF.

local_columns: Vec<String>

Columns declared by this relation before inherited columns were merged into its stored row type. PostgreSQL exposes this provenance through pg_attribute.attislocal; keeping it in durable hierarchy metadata distinguishes an explicitly redeclared inherited column from a purely inherited one after reopen.

partition_identity_overrides: Vec<PartitionIdentityOverride>

Original local sequence metadata hidden while an attached partition uses a parent’s identity generator. PostgreSQL keeps a pre-existing SERIAL default and restores its behavior after DETACH.

partition_inherited_key_constraints: Vec<TableKeyConstraint>

Key constraints materialized during partition attachment. Local catalog identities bind provenance to the retained rows through schema changes; detachment clears external provenance while preserving the constraints.

partition_inherited_foreign_keys: Vec<ForeignKey>

Foreign keys materialized during partition attachment. Local catalog identities bind provenance to each row; detachment retains the rows and separates their enforcement family from the former parent.

Implementations

impl TableHierarchy

pub const fn is_partition(&self) -> bool

pub fn parent_sequence_number(&self, index: usize) -> i32

pub fn next_parent_sequence_number(&self) -> i32

Trait Implementations

impl Clone for TableHierarchy

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableHierarchy

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

Formats the value using the given formatter.

impl Default for TableHierarchy

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TableHierarchy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TableHierarchy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.