Struct ArithmeticEvaluator 

pub struct ArithmeticEvaluator<'a> { /* private fields */ }

Evaluates SQL expressions to compute DataValues (for SELECT clauses) This is different from RecursiveWhereEvaluator which returns boolean

Implementations

impl<'a> ArithmeticEvaluator<'a>

pub fn new(table: &'a DataTable) -> Self

pub fn with_date_notation(table: &'a DataTable, date_notation: String) -> Self

pub fn with_visible_rows(self, rows: Vec<usize>) -> Self

Set visible rows for aggregate functions (for filtered views)

pub fn with_table_aliases(self, aliases: HashMap<String, String>) -> Self

Set table aliases for qualified column resolution

pub fn with_date_notation_and_registry( table: &'a DataTable, date_notation: String, function_registry: Arc<FunctionRegistry>, ) -> Self

pub fn evaluate( &mut self, expr: &SqlExpression, row_index: usize, ) -> Result<DataValue>

Evaluate an SQL expression to produce a DataValue

pub fn get_or_create_window_context( &mut self, spec: &WindowSpec, ) -> Result<Arc<WindowContext>>

Get or create a WindowContext for the given specification Public to allow pre-creation of contexts in query engine (optimization)