Struct InferredParamType 

pub struct InferredParamType {
    pub data_type: SqlDataType,
    pub int_width: Option<IntWidth>,
    pub float_width: Option<FloatWidth>,
}

A parameter type the statement pins down.

Carries the declared numeric width alongside the logical type because the two are not interchangeable on the wire: a column declared INT must be advertised as int4 (OID 23), not int8 (OID 20), and one declared REAL as float4 (OID 700), not float8 (OID 701). The client encodes its bind value at exactly the width the ParameterDescription names, so collapsing every integer to int8 or every float to float8 here would put a 4-byte column behind an 8-byte promise — the precise failure the catalog’s resolved IntWidth / FloatWidth exist to prevent.

Fields

data_type: SqlDataType

The logical type this position resolves to.

int_width: Option<IntWidth>

Declared width for an integer position, or None when the form that resolved it had no catalog column behind it.

float_width: Option<FloatWidth>

Declared width for a floating-point position, or None when the form that resolved it had no catalog column behind it.

Trait Implementations

impl Clone for InferredParamType

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 InferredParamType

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

Formats the value using the given formatter.

impl PartialEq for InferredParamType

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for InferredParamType