Struct ColumnInfo 

pub struct ColumnInfo {
    pub name: String,
    pub column_type: String,
    pub is_primary_key: bool,
    pub key_position: Option<u16>,
    pub is_static: bool,
    pub is_clustering: bool,
    pub clustering_reversed: bool,
}

Information about a column in the table

Fields

name: String

Column name

column_type: String

Column type (CQL type name)

is_primary_key: bool

Whether the column is part of the primary key

key_position: Option<u16>

Column position in the primary key (if applicable)

is_static: bool

Whether the column is static

is_clustering: bool

Whether the column is clustering

clustering_reversed: bool

Clustering sort order is descending (Issue #759).

Cassandra’s serialization header encodes a DESC clustering column by wrapping its comparator class in ReversedType(...). This flag captures that authoritative signal so schema discovery can report ClusteringOrder::Desc. Always false for non-clustering columns and for ASC clustering columns. #[serde(default)] keeps previously serialized headers (without the field) deserializable.

Trait Implementations

impl Clone for ColumnInfo

fn clone(&self) -> ColumnInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnInfo

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnInfo

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ColumnInfo

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

where __S: Serializer,

Serialize this value into the given Serde serializer.