Struct ColumnEntity

pub struct ColumnEntity {

    pub array: Option<bool>,
    pub array_length: Option<i32>,
    pub auto_generated: Option<bool>,
    pub charset: Option<String>,
    pub collation: Option<String>,
    pub comment: Option<String>,
    pub custom_features: Option<HashMap<String, Value>>,
    pub data_type: Option<String>,
    pub default_value: Option<String>,
    pub fractional_seconds_precision: Option<i32>,
    pub length: Option<i64>,
    pub name: Option<String>,
    pub nullable: Option<bool>,
    pub ordinal_position: Option<i32>,
    pub precision: Option<i32>,
    pub scale: Option<i32>,
    pub set_values: Option<Vec<String>>,
    pub udt: Option<bool>,
}

Column is not used as an independent entity, it is retrieved as part of a Table entity.

This type is not used in any activity, and only used as part of another schema.

Fields

array: Option<bool>

Is the column of array type.

array_length: Option<i32>

If the column is array, of which length.

auto_generated: Option<bool>

Is the column auto-generated/identity.

charset: Option<String>

Charset override - instead of table level charset.

collation: Option<String>

Collation override - instead of table level collation.

comment: Option<String>

Comment associated with the column.

custom_features: Option<HashMap<String, Value>>

Custom engine specific features.

data_type: Option<String>

Column data type.

default_value: Option<String>

Default value of the column.

fractional_seconds_precision: Option<i32>

Column fractional second precision - used for timestamp based datatypes.

length: Option<i64>

Column length - e.g. varchar (50).

name: Option<String>

Column name.

nullable: Option<bool>

Is the column nullable.

ordinal_position: Option<i32>

Column order in the table.

precision: Option<i32>

Column precision - when relevant.

scale: Option<i32>

Column scale - when relevant.

set_values: Option<Vec<String>>

Specifies the list of values allowed in the column. Only used for set data type.

udt: Option<bool>

Is the column a UDT.

Trait Implementations

impl Clone for ColumnEntity

fn clone(&self) -> ColumnEntity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnEntity

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

Formats the value using the given formatter.

impl Default for ColumnEntity

fn default() -> ColumnEntity

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ColumnEntity

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ColumnEntity

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Part for ColumnEntity