Enum StatementKind 

pub enum StatementKind {
    ReadOnly,
    Ddl,
    Dml,
    TransactionControl,
    Other,
}

Coarse classification of a single SQL statement, comment-aware.

Used by the atomic-batch execute tool to enforce the rule “a batch must be either all-DDL singletons or all-DML; mixing the two aborts the transaction with SQLSTATE 0A000”. The first-keyword heuristic matches what is_read_only_sql already trusts elsewhere in the codebase.

Variants

ReadOnly

SELECT / WITH / EXPLAIN / SHOW / VALUES.

Ddl

CREATE / DROP / ALTER / TRUNCATE / RENAME — Hyper auto-commits.

Dml

INSERT / UPDATE / DELETE / COPY / MERGE — transactional.

TransactionControl

BEGIN / START / COMMIT / END / ROLLBACK / ABORT / SAVEPOINT / RELEASE. Rejected inside a batch because the execute tool already manages the transaction; an explicit COMMIT mid-batch would defeat atomicity.

Other

Empty/comment-only input or an unrecognized first keyword. Treated as opaque by the batch validator (passed through to Hyper).

Trait Implementations

impl Clone for StatementKind

fn clone(&self) -> StatementKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StatementKind

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

Formats the value using the given formatter.

impl PartialEq for StatementKind

fn eq(&self, other: &StatementKind) -> 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 StatementKind

impl Eq for StatementKind

impl StructuralPartialEq for StatementKind