Module lance_datafusion::logical_expr

Extends logical expression.

Traits

• ExprExt

Functions

• coerce_expr
  Coerce expression of literals to column type.
• coerce_filter_type_to_boolean
  Coerce logical expression for filters to boolean.
• get_as_string_scalar_opt
  A simple helper function that interprets an Expr as a string scalar or returns None if it is not.
• resolve_column_type
  Given a Expr::Column or Expr::GetIndexedField, get the data type of referenced field in the schema.
• resolve_expr
  Resolve logical expression expr.