def is_foreign_expr(self, expr):
from ibis.expr.analysis import ExprValidator
# The expression isn't foreign to us. For example, the parent table set
# in a correlated WHERE subquery
if self.has_ref(expr, parent_contexts=True):
return False
exprs = [self.query.table_set] + self.query.select_set
validator = ExprValidator(exprs)
return not validator.validate(expr)
def is_foreign_expr(self, expr):
from ibis.expr.analysis import ExprValidator
# The expression isn't foreign to us. For example, the parent table set
# in a correlated WHERE subquery
if self.has_ref(expr, parent_contexts=True):
return False
exprs = [self.query.table_set] + self.query.select_set
validator = ExprValidator(exprs)
return not validator.validate(expr)
