Struct DbIndex 

pub struct DbIndex {
    pub name: String,
    pub is_unique: bool,
    pub method: String,
    pub columns: Vec<String>,
    pub predicate: Option<String>,
    pub key: Option<String>,
}

Fields

name: String

is_unique: bool

method: String

columns: Vec<String>

The columns the index is keyed on, in order. Postgres auto-names an index created without one, so a name is no basis for deciding whether the database already has what the schema asks for – the columns are. Empty for an index over an expression, which is matched by name.

predicate: Option<String>

The WHERE of a partial index, already compiled to SQL. An exclusive declared unless= covers only the rows the condition excludes, and an index built without it would refuse rows the constraint allows.

key: Option<String>

The whole (...) key as SQL, for an index whose key is not a plain column list – a computed pointer, or an expression index. columns stays empty then, and this is what decides whether it already exists.

Trait Implementations

impl Clone for DbIndex

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DbIndex

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DbIndex

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DbIndex

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

where __S: Serializer,

Serialize this value into the given Serde serializer.