Struct PlanColumnSpec 

pub struct PlanColumnSpec {
    pub name: String,
    pub data_type: DataType,
    pub nullable: bool,
    pub primary_key: bool,
    pub unique: bool,
    pub check_expr: Option<String>,
}

Column specification produced by the logical planner.

This struct flows from the planner into the runtime/executor so callers can reason about column metadata without duplicating field definitions.

Fields

name: String

data_type: DataType

nullable: bool

primary_key: bool

unique: bool

check_expr: Option<String>

Optional CHECK constraint expression (SQL string). Example: “t.t=42” for CHECK(t.t=42)

Implementations

impl PlanColumnSpec

pub fn new( name: impl Into<String>, data_type: DataType, nullable: bool, ) -> PlanColumnSpec

pub fn with_primary_key(self, primary_key: bool) -> PlanColumnSpec

pub fn with_unique(self, unique: bool) -> PlanColumnSpec

pub fn with_check(self, check_expr: Option<String>) -> PlanColumnSpec

Trait Implementations

impl Clone for PlanColumnSpec

fn clone(&self) -> PlanColumnSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlanColumnSpec

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

Formats the value using the given formatter.

impl IntoPlanColumnSpec for PlanColumnSpec

fn into_plan_column_spec(self) -> PlanColumnSpec