Struct QueryDef 

pub struct QueryDef {
    pub name: String,
    pub table: String,
    pub fields: Vec<QbeField>,
}

A query definition: source table plus QBE columns.

Fields

name: String

Query name (unique in its database, case-insensitive).

table: String

Source table (whitelisted against the database).

fields: Vec<QbeField>

QBE columns in grid order. The list may be any subset in any order of the source’s fields: shown names resolve by name and must be unique (case-insensitive) and known, or execution answers a precise EngineError.

Implementations

impl QueryDef

pub fn new(name: impl Into<String>, table: impl Into<String>) -> Self

Creates an empty query over table (may be empty until chosen).

pub fn set_cell( &mut self, row: QbeRow, col: usize, value: QbeValue, ) -> Result<(), QueryError>

Structural cell edit (no whitelist — dispatch owns that).

Trait Implementations

impl Clone for QueryDef

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 QueryDef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QueryDef

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for QueryDef

impl PartialEq for QueryDef

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for QueryDef

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for QueryDef