Struct SingleColumnChange 

#[non_exhaustive]
pub struct SingleColumnChange {

    pub data_type: String,
    pub charset: String,
    pub collation: String,
    pub length: i64,
    pub precision: i32,
    pub scale: i32,
    pub fractional_seconds_precision: i32,
    pub array: bool,
    pub array_length: i32,
    pub nullable: bool,
    pub auto_generated: bool,
    pub udt: bool,
    pub custom_features: Option<Struct>,
    pub set_values: Vec<String>,
    pub comment: String,
    /* private fields */
}

Options to configure rule type SingleColumnChange. The rule is used to change the properties of a column.

The rule filter field can refer to one entity.

The rule scope can be one of: Column.

When using this rule, if a field is not specified than the destination column’s configuration will be the same as the one in the source column..

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

data_type: String

Optional. Column data type name.

charset: String

Optional. Charset override - instead of table level charset.

collation: String

Optional. Collation override - instead of table level collation.

length: i64

Optional. Column length - e.g. 50 as in varchar (50) - when relevant.

precision: i32

Optional. Column precision - e.g. 8 as in double (8,2) - when relevant.

scale: i32

Optional. Column scale - e.g. 2 as in double (8,2) - when relevant.

fractional_seconds_precision: i32

Optional. Column fractional seconds precision - e.g. 2 as in timestamp (2)

• when relevant.

array: bool

Optional. Is the column of array type.

array_length: i32

Optional. The length of the array, only relevant if the column type is an array.

nullable: bool

Optional. Is the column nullable.

auto_generated: bool

Optional. Is the column auto-generated/identity.

udt: bool

Optional. Is the column a UDT (User-defined Type).

custom_features: Option<Struct>

Optional. Custom engine specific features.

set_values: Vec<String>

Optional. Specifies the list of values allowed in the column.

comment: String

Optional. Comment associated with the column.

Implementations

impl SingleColumnChange

pub fn new() -> Self

pub fn set_data_type<T: Into<String>>(self, v: T) -> Self

Sets the value of data_type.

pub fn set_charset<T: Into<String>>(self, v: T) -> Self

Sets the value of charset.

pub fn set_collation<T: Into<String>>(self, v: T) -> Self

Sets the value of collation.

pub fn set_length<T: Into<i64>>(self, v: T) -> Self

Sets the value of length.

pub fn set_precision<T: Into<i32>>(self, v: T) -> Self

Sets the value of precision.

pub fn set_scale<T: Into<i32>>(self, v: T) -> Self

Sets the value of scale.

pub fn set_fractional_seconds_precision<T: Into<i32>>(self, v: T) -> Self

Sets the value of fractional_seconds_precision.

pub fn set_array<T: Into<bool>>(self, v: T) -> Self

Sets the value of array.

pub fn set_array_length<T: Into<i32>>(self, v: T) -> Self

Sets the value of array_length.

pub fn set_nullable<T: Into<bool>>(self, v: T) -> Self

Sets the value of nullable.

pub fn set_auto_generated<T: Into<bool>>(self, v: T) -> Self

Sets the value of auto_generated.

pub fn set_udt<T: Into<bool>>(self, v: T) -> Self

Sets the value of udt.

pub fn set_custom_features<T>(self, v: T) -> Self

where T: Into<Struct>,

Sets the value of custom_features.

pub fn set_or_clear_custom_features<T>(self, v: Option<T>) -> Self

where T: Into<Struct>,

Sets or clears the value of custom_features.

pub fn set_set_values<T, V>(self, v: T) -> Self

where T: IntoIterator<Item = V>, V: Into<String>,

Sets the value of set_values.

pub fn set_comment<T: Into<String>>(self, v: T) -> Self

Sets the value of comment.

Trait Implementations

impl Clone for SingleColumnChange

fn clone(&self) -> SingleColumnChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SingleColumnChange

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

Formats the value using the given formatter.

impl Default for SingleColumnChange

fn default() -> SingleColumnChange

Returns the “default value” for a type.

impl Message for SingleColumnChange

fn typename() -> &'static str

The typename of this message.

impl PartialEq for SingleColumnChange

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SingleColumnChange