Struct ConstraintEntity 

pub struct ConstraintEntity {
    pub custom_features: Option<HashMap<String, Value>>,
    pub name: Option<String>,
    pub reference_columns: Option<Vec<String>>,
    pub reference_table: Option<String>,
    pub table_columns: Option<Vec<String>>,
    pub table_name: Option<String>,
    pub type_: Option<String>,
}

Constraint is not used as an independent entity, it is retrieved as part of another entity such as Table or View.

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

Fields

custom_features: Option<HashMap<String, Value>>

Custom engine specific features.

name: Option<String>

The name of the table constraint.

reference_columns: Option<Vec<String>>

Reference columns which may be associated with the constraint. For example, if the constraint is a FOREIGN_KEY, this represents the list of full names of referenced columns by the foreign key.

reference_table: Option<String>

Reference table which may be associated with the constraint. For example, if the constraint is a FOREIGN_KEY, this represents the list of full name of the referenced table by the foreign key.

table_columns: Option<Vec<String>>

Table columns used as part of the Constraint, for example primary key constraint should list the columns which constitutes the key.

table_name: Option<String>

Table which is associated with the constraint. In case the constraint is defined on a table, this field is left empty as this information is stored in parent_name. However, if constraint is defined on a view, this field stores the table name on which the view is defined.

type_: Option<String>

Type of constraint, for example unique, primary key, foreign key (currently only primary key is supported).

Trait Implementations

impl Clone for ConstraintEntity

fn clone(&self) -> ConstraintEntity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintEntity

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

Formats the value using the given formatter.

impl Default for ConstraintEntity

fn default() -> ConstraintEntity

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ConstraintEntity

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ConstraintEntity

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 ConstraintEntity