Struct ProjectionRequest 

pub struct ProjectionRequest<'a> {
    pub view: &'a str,
    pub projection: Option<&'a SqlProjectionHint>,
    pub where_clause: Option<&'a WhereClause>,
    pub order_by: Option<&'a [OrderByClause]>,
    pub limit: Option<u32>,
    pub offset: Option<u32>,
}

Parameters for an execute_with_projection_arc call (F043).

Consolidates the six positional parameters of the projection-execution path into a single borrowed struct so adapters and callers cannot reorder them by mistake. All fields borrow from the caller; the struct is constructed per-request on the stack and discarded after the call.

Field ordering

The field order mirrors a SQL SELECT … FROM view WHERE … ORDER BY … LIMIT … OFFSET … clause, top-to-bottom, so that reading the struct mirrors the query it produces.

Intentionally not #[non_exhaustive]: the struct is the call shape of the trait method and any field addition is a breaking trait change regardless. Callers construct it with a struct literal so that omitting a field is a hard compile error.

Fields

view: &'a str

View or table name (e.g. "v_user").

projection: Option<&'a SqlProjectionHint>

Projection hint (SELECT shape). None falls back to SELECT data.

where_clause: Option<&'a WhereClause>

WHERE clause AST. None means no filter.

order_by: Option<&'a [OrderByClause]>

ORDER BY clauses. Empty slice (or None) means unordered.

limit: Option<u32>

Row limit. None means no limit.

offset: Option<u32>

Row offset. None means no offset.

Implementations

impl<'a> ProjectionRequest<'a>

pub const fn new(view: &'a str) -> Self

Construct a ProjectionRequest from a view name with no filters, pagination or projection. Useful for tests and simple table scans.

Trait Implementations

impl<'a> Clone for ProjectionRequest<'a>

fn clone(&self) -> ProjectionRequest<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ProjectionRequest<'a>

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

Formats the value using the given formatter.

impl<'a> Copy for ProjectionRequest<'a>