Struct Column 

pub struct Column {
    pub name: CompactString,
    pub description: Option<String>,
    pub nullable: bool,
    pub data_type: CompactString,
    pub nominal_type: CompactString,
    pub max_length: Option<i32>,
    pub default: Option<String>,
    pub enum_values: SmallVec<[String; 8]>,
    pub is_composite: bool,
    pub composite_type_schema: Option<CompactString>,
    pub composite_type_name: Option<CompactString>,
}

Column metadata

Represents a PostgreSQL column with its type and constraints.

Fields

name: CompactString

Column name

description: Option<String>

Description from pg_description

nullable: bool

Whether NULL values are allowed

data_type: CompactString

The “coerced” data type (e.g., “character varying” instead of “varchar”)

nominal_type: CompactString

The actual declared type as written

max_length: Option<i32>

Maximum length for character types

default: Option<String>

Default value expression

enum_values: SmallVec<[String; 8]>

Enum values if this is an enum type

is_composite: bool

Whether this is a composite type

composite_type_schema: Option<CompactString>

Composite type schema (if composite)

composite_type_name: Option<CompactString>

Composite type name (if composite)

Implementations

impl Column

pub fn has_default(&self) -> bool

Check if the column has a default value

pub fn is_generated(&self) -> bool

Check if this is an auto-generated column (serial, identity, generated)

pub fn is_enum(&self) -> bool

Check if this is an enum column

pub fn is_text_type(&self) -> bool

Check if this is a text/character type

pub fn is_numeric_type(&self) -> bool

Check if this is a numeric type

pub fn is_boolean_type(&self) -> bool

Check if this is a boolean type

pub fn is_json_type(&self) -> bool

Check if this is a JSON type

pub fn is_array_type(&self) -> bool

Check if this is an array type

pub fn is_temporal_type(&self) -> bool

Check if this is a timestamp/date type

pub fn is_uuid_type(&self) -> bool

Check if this is a UUID type

pub fn is_composite_type(&self) -> bool

Check if this is a composite type

Trait Implementations

impl Clone for Column

fn clone(&self) -> Column

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Column

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

Formats the value using the given formatter.