Struct ColumnMetadata 

pub struct ColumnMetadata {

    pub name: String,
    pub ora_type_num: u8,
    pub csfrm: u8,
    pub precision: i8,
    pub scale: i8,
    pub buffer_size: u32,
    pub max_size: u32,
    pub nulls_allowed: bool,
    pub is_json: bool,
    pub is_oson: bool,
    pub object_schema: Option<String>,
    pub object_type_name: Option<String>,
    pub is_array: bool,
    pub vector_dimensions: Option<u32>,
    pub vector_format: u8,
    pub vector_flags: u8,
    pub domain_schema: Option<String>,
    pub domain_name: Option<String>,
    pub annotations: Option<Vec<(String, String)>>,
}

Fields

name: String

ora_type_num: u8

csfrm: u8

precision: i8

scale: i8

buffer_size: u32

max_size: u32

nulls_allowed: bool

is_json: bool

is_oson: bool

object_schema: Option<String>

object_type_name: Option<String>

is_array: bool

vector_dimensions: Option<u32>

VECTOR columns only: the fixed dimension count, or None for a flexible-dimension column (server sends 0).

vector_format: u8

VECTOR columns only: the storage format byte (VECTOR_FORMAT_*); 0 for a flexible-format column.

vector_flags: u8

VECTOR columns only: the metadata flags byte (sparse / flexible).

domain_schema: Option<String>

SQL data-use-case domain schema (23ai+), or None if the column has no domain.

domain_name: Option<String>

SQL data-use-case domain name (23ai+), or None if the column has no domain.

annotations: Option<Vec<(String, String)>>

Ordered column annotations (23ai+), as (key, value) pairs preserving server order; None if the column has no annotations. A null annotation value is normalized to an empty string, matching python-oracledb.

Trait Implementations

impl Clone for ColumnMetadata

fn clone(&self) -> ColumnMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnMetadata

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

Formats the value using the given formatter.

impl Default for ColumnMetadata

fn default() -> ColumnMetadata

Returns the “default value” for a type.

impl Eq for ColumnMetadata

impl PartialEq for ColumnMetadata

fn eq(&self, other: &ColumnMetadata) -> 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 ColumnMetadata