Struct ColumnStorageInfo 

pub struct ColumnStorageInfo {

    pub name: String,
    pub dd_type: u64,
    pub column_type: String,
    pub is_nullable: bool,
    pub is_unsigned: bool,
    pub fixed_len: usize,
    pub is_variable: bool,
    pub charset_max_bytes: usize,
    pub datetime_precision: u64,
    pub is_system_column: bool,
    pub elements: Vec<String>,
    pub numeric_precision: u64,
    pub numeric_scale: u64,
}

Physical storage information for a single column.

Fields

name: String

Column name.

dd_type: u64

MySQL dd_type code.

column_type: String

SQL type string (e.g., “int”, “varchar(255)”).

is_nullable: bool

Whether the column allows NULL.

is_unsigned: bool

Whether the column is unsigned.

fixed_len: usize

Fixed-length size in bytes (0 for variable-length).

is_variable: bool

Whether this is a variable-length field.

charset_max_bytes: usize

Maximum bytes per character for string types.

datetime_precision: u64

Fractional seconds precision for DATETIME/TIMESTAMP/TIME.

is_system_column: bool

Whether this is a system column (DB_TRX_ID, DB_ROLL_PTR, DB_ROW_ID).

elements: Vec<String>

ENUM/SET element names (from SDI metadata).

numeric_precision: u64

Numeric precision for DECIMAL.

numeric_scale: u64

Numeric scale for DECIMAL.

Trait Implementations

impl Clone for ColumnStorageInfo

fn clone(&self) -> ColumnStorageInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnStorageInfo

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

Formats the value using the given formatter.