Enum LogicalPlan 

pub enum LogicalPlan {
    Scan {
        collection: String,
    },
    RangeScan {
        collection: String,
        start_key: Option<Vec<u8>>,
        end_key: Option<Vec<u8>>,
    },
    Filter {
        input: Box<LogicalPlan>,
        predicate: Predicate,
    },
    Project {
        input: Box<LogicalPlan>,
        columns: Vec<String>,
    },
    Limit {
        input: Box<LogicalPlan>,
        count: usize,
    },
    PointLookup {
        collection: String,
        key: Key,
    },
}

Logical query plan node

Represents the intent of a query before physical execution details are decided. The logical plan is the subject of optimization rewrites.

Variants

Scan

Full table/collection scan

Fields

collection: String

Name of the collection to scan

RangeScan

Range scan with start/end keys

Fields

collection: String

Name of the collection

start_key: Option<Vec<u8>>

Inclusive start key (None = beginning)

end_key: Option<Vec<u8>>

Exclusive end key (None = end)

Filter

Filter with predicate (operates on encrypted data via FHE)

Fields

input: Box<LogicalPlan>

Input plan to filter

predicate: Predicate

Predicate to evaluate

Project

Projection (select specific columns)

Fields

input: Box<LogicalPlan>

Input plan to project

columns: Vec<String>

Column names to retain

Limit

Limit number of results

Fields

input: Box<LogicalPlan>

Input plan to limit

count: usize

Maximum number of results

PointLookup

Point lookup by key

Fields

collection: String

Collection name

key: Key

Key to look up

Trait Implementations

impl Clone for LogicalPlan

fn clone(&self) -> LogicalPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogicalPlan

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

Formats the value using the given formatter.

impl Display for LogicalPlan

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

Formats the value using the given formatter.