Enum IssueKind 

#[non_exhaustive]
pub enum IssueKind {
    MissingTable,
    MissingColumn,
    TypeMismatch,
    NullabilityMismatch,
    WrongPrimaryKey,
    ExtraDbColumn,
    QueryFailed,
}

Discrete failure mode for a single drift point.

#[non_exhaustive] so commit 4+ can add new kinds (CHECK constraint mismatch, FK target missing, etc.) without breaking downstream pattern matches.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MissingTable

The table named by the Rust contract does not exist in information_schema.columns.

MissingColumn

A Rust column has no corresponding DB column.

TypeMismatch

Rust column’s RustType is not compatible with the DB column’s data_type / udt_name (per RustType::is_compatible_with).

NullabilityMismatch

Rust says nullable, DB says NOT NULL — or vice versa.

WrongPrimaryKey

The DB’s primary key column(s) don’t match the contract’s declared primary_key.

ExtraDbColumn

A DB column exists that the Rust contract doesn’t declare. Emitted as a warning — could be a deliberate audit column, could be drift.

QueryFailed

Introspection query failed (network, permissions, malformed schema). Reported as an error so the operator knows the validator couldn’t actually verify anything.

Trait Implementations

impl Clone for IssueKind

fn clone(&self) -> IssueKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IssueKind

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

Formats the value using the given formatter.

impl PartialEq for IssueKind

fn eq(&self, other: &IssueKind) -> 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 Copy for IssueKind

impl Eq for IssueKind

impl StructuralPartialEq for IssueKind