Struct ParamSpec 

pub struct ParamSpec {
    pub var_id: Option<VarId>,
    pub display_name: Option<String>,
    pub name: String,
    pub position: usize,
    pub occurrences: Vec<usize>,
    pub rust_type: Option<&'static str>,
    pub sql_type: Option<String>,
    pub source: ParamSource,
}

Metadata for one logical planned SQL parameter.

Fields

var_id: Option<VarId>

Stable placeholder identity for var(...) parameters.

display_name: Option<String>

Optional user-facing placeholder name.

name: String

Stable parameter name.

position: usize

One-based first placeholder position in the rendered SQL.

occurrences: Vec<usize>

Every one-based placeholder position for this logical parameter.

rust_type: Option<&'static str>

Rust type name inferred from the expression context.

sql_type: Option<String>

Optional SQL type hint reserved for future code generation.

source: ParamSource

Whether this parameter came from val(...) or var(...).

Trait Implementations

impl Clone for ParamSpec

fn clone(&self) -> ParamSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParamSpec

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

Formats the value using the given formatter.