Struct TableMetadata 

pub struct TableMetadata {
    pub column_names: Vec<String>,
    pub column_types: Vec<DataType>,
}

Metadata describing table structure and column types

Provides semantic information about table columns that can be used by formatters to produce richer output (e.g., type-aware JSON schemas).

Fields

column_names: Vec<String>

Column names (headers)

column_types: Vec<DataType>

Column data types

Implementations

impl TableMetadata

pub fn new(column_names: Vec<String>) -> Self

Create new metadata with column names and default String types

pub fn with_types( column_names: Vec<String>, column_types: Vec<DataType>, ) -> Self

Create metadata with explicit column types

Trait Implementations

impl Clone for TableMetadata

fn clone(&self) -> TableMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableMetadata

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

Formats the value using the given formatter.