Struct DatasetSchema 

pub struct DatasetSchema {
    pub name: String,
    pub columns: Vec<ColumnInfo>,
    pub by_name: HashMap<String, usize>,
}

Fields

name: String

columns: Vec<ColumnInfo>

by_name: HashMap<String, usize>

lowercase name → index in columns.

Implementations

impl DatasetSchema

pub fn new(name: impl Into<String>, columns: Vec<ColumnInfo>) -> Self

pub fn find(&self, name: &str) -> Result<&ColumnInfo, AppError>

Case-insensitive lookup. Returns the canonical ColumnInfo.

pub fn quote_ident(name: &str) -> String

Quoted identifier safe for WHERE / SELECT clauses. Double-quotes embedded " per SQL spec.

Trait Implementations

impl Clone for DatasetSchema

fn clone(&self) -> DatasetSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DatasetSchema

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

Formats the value using the given formatter.