/** 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()));
}
}
public void validateCall(
SqlCall call,
SqlValidator validator,
SqlValidatorScope scope,
SqlValidatorScope operandScope) {
// The base method validates all operands. We override because
// we don't want to validate the identifier.
final SqlNode[] operands = call.operands;
assert operands.length == 2;
assert operands[1] instanceof SqlIdentifier;
operands[0].validateExpr(validator, scope);
SqlIdentifier id = (SqlIdentifier) operands[1];
if (!id.isSimple()) {
throw validator.newValidationError(
id, EigenbaseResource.instance().AliasMustBeSimpleIdentifier.ex());
}
}