public Void visit(SqlCall call) {
final SqlOperator operator = call.getOperator();
if (operator == SqlStdOperatorTable.andOperator) {
throw new Found();
}
return super.visit(call);
}
/** Throws a validation error if a DISTINCT or ALL quantifier is present but not allowed. */
protected void validateQuantifier(SqlValidator validator, SqlCall call) {
if ((null != call.getFunctionQuantifier()) && !isQuantifierAllowed()) {
throw validator.newValidationError(
call.getFunctionQuantifier(),
EigenbaseResource.instance()
.FunctionQuantifierNotAllowed
.ex(call.getOperator().getName()));
}
}
