Struct ColumnData 

pub struct ColumnData {
    pub name: String,
    pub type_id: TypeId,
    pub col_type: u8,
    pub flags: u16,
    pub user_type: u32,
    pub type_info: TypeInfo,
}

Column definition within metadata.

Fields

name: String

Column name.

type_id: TypeId

Column data type ID.

col_type: u8

Column data type raw byte (for unknown types).

flags: u16

Column flags.

user_type: u32

User type ID.

type_info: TypeInfo

Type-specific metadata.

Implementations

impl ColumnData

pub fn is_nullable(&self) -> bool

Check if this column is nullable.

pub fn fixed_size(&self) -> Option<usize>

Get the fixed size in bytes for this column, if applicable.

Returns None for variable-length types.

Trait Implementations

impl Clone for ColumnData

fn clone(&self) -> ColumnData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnData

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

Formats the value using the given formatter.