Enum DdlPreflight 

pub enum DdlPreflight {
    Present,
    MissingNoOp(Vec<(String, String)>),
    Mixed {
        existing: Vec<(String, String)>,
        missing: Vec<(String, String)>,
    },
}

Result of checking DDL targets for existence before execution.

Variants

Present

All mutated targets exist; proceed with snapshot + DDL.

MissingNoOp(Vec<(String, String)>)

All mutated targets are missing AND the statement says IF EXISTS: audited local no-op — no DDL is sent to the server.

Mixed

Some targets exist and some are missing under IF EXISTS: execute ONLY the preflight-approved existing subset — as a REWRITTEN statement naming exactly those targets (never the original multi-target statement, which would also drop any target created between preflight and execution); the missing list must be audited as absent (never silently suppressed).

Fields

existing: Vec<(String, String)>

missing: Vec<(String, String)>

Trait Implementations

impl Clone for DdlPreflight

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 DdlPreflight

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

Formats the value using the given formatter.

impl PartialEq for DdlPreflight

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DdlPreflight