Struct SearchFilter 

#[non_exhaustive]
pub struct SearchFilter {
    pub source_type: Option<String>,
    pub kind: Option<String>,
    pub created_after: Option<i64>,
    pub status: Option<String>,
    pub attributes: Vec<(String, String)>,
}

G10 — closed metadata filter for Engine::search_filtered (Slice 10).

All fields are optional; a None field imposes no constraint, and an all-None filter (or None filter) is the unfiltered path whose phase-1 SQL is byte-identical to 0.7.2. This is a closed struct, not an open filter DSL (ADR-0.8.0-agent-memory-retrieval-and-identity Q1); the filter-grammar / list decision stays a later-slice concern.

created_after is a created_at >= bound lower bound in unix seconds. status is wired through to the vec0 status metadata column. vec0 TEXT metadata columns are NOT NULL-able, so the “no real population yet” state is an empty-string sentinel '' (a forced deviation from the planned “NULL plumbing”; a real population source is reserved-gap candidate 13). A status = Some("open")-style filter therefore prunes every row until that population slice lands.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

source_type: Option<String>

kind: Option<String>

created_after: Option<i64>

status: Option<String>

attributes: Vec<(String, String)>

0.8.20 Slice 15e (R-20-PR, ADR-0.8.11 D3) — declared-filterable-attribute equality predicates, each (attribute_name, value). Lowered into the indexed pre-KNN vec0 metadata column attr_<hex> by [vector_filter_clause] (NOT a post-KNN json_extract). Empty ⇒ the byte-identical unfiltered path is preserved. attribute_name is the registry projection name; the encoded column is derived by [attr_vec0_column].

Trait Implementations

impl Clone for SearchFilter

fn clone(&self) -> SearchFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SearchFilter

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

Formats the value using the given formatter.

impl Default for SearchFilter

fn default() -> SearchFilter

Returns the “default value” for a type.

impl Eq for SearchFilter

impl PartialEq for SearchFilter

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SearchFilter

impl TryFrom<&SearchFilter> for Filter

fn try_from(sf: &SearchFilter) -> Result<Self, Self::Error>

D4 sugar lowering — the shipped G10 SearchFilter re-expressed as the unified Filter. Attribute equality is intentionally not part of the unified grammar, so it is refused rather than silently discarded. Field → term uses canonical order (source_type, kind, created_after, status) so an attribute-free round-trip stays byte-identical.

type Error = EngineError

The type returned in the event of a conversion error.