How to use

getFunctionIdentifier

method

in

org.apache.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression

  /**
   * Whether the expression contains a missing filtering
   *
   * @param expr
   * @return true if the expression contains a missing filtering function call; false otherwise.
   */
  private boolean containsMissingFiltering(ILogicalExpression expr) {
    if (expr.getExpressionTag() != LogicalExpressionTag.FUNCTION_CALL) {
      return false;
    }
    ScalarFunctionCallExpression func = (ScalarFunctionCallExpression) expr;
    if (func.getFunctionIdentifier() == AlgebricksBuiltinFunctions.AND) {
      for (Mutable<ILogicalExpression> argumentRef : func.getArguments()) {
        if (containsMissingFiltering(argumentRef.getValue())) {
          return true;
        }
      }
      return false;
    }
    if (func.getFunctionIdentifier() != AlgebricksBuiltinFunctions.IS_MISSING) {
      return false;
    }
    return true;
  }
}

if (func.getFunctionIdentifier() == AlgebricksBuiltinFunctions.AND) {
  for (Mutable<ILogicalExpression> argumentRef : func.getArguments()) {
    if (containsNotMissingFiltering(argumentRef.getValue())) {
if (func.getFunctionIdentifier() != AlgebricksBuiltinFunctions.NOT) {
  return false;
if (func2.getFunctionIdentifier() != AlgebricksBuiltinFunctions.IS_MISSING) {
  return false;

ScalarFunctionCallExpression funcExpr = (ScalarFunctionCallExpression) assignOp.getExpressions()
    .get(expectedRecordIndex).getValue();
fid = funcExpr.getFunctionIdentifier();

if (FUNC_ID_SET_THAT_SHOULD_NOT_BE_APPLIED.contains(expr.getFunctionIdentifier())) {
  return new Pair<>(false, null);
  if (expr.getFunctionIdentifier().equals(BuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR)
      || expr.getFunctionIdentifier().equals(BuiltinFunctions.ORDERED_LIST_CONSTRUCTOR)) {
    AbstractCollectionType listType = (AbstractCollectionType) TypeCastUtils.getRequiredType(expr);
    if (listType != null && (listType.getItemType().getTypeTag() == ATypeTag.ANY
  if (expr.getFunctionIdentifier().equals(BuiltinFunctions.FIELD_ACCESS_BY_NAME)) {
    ARecordType rt = (ARecordType) _emptyTypeEnv.getType(expr.getArguments().get(0).getValue());
    String str = ConstantExpressionUtil.getStringConstant(expr.getArguments().get(1).getValue());
  IAObject c = FUNC_ID_TO_CONSTANT.get(expr.getFunctionIdentifier());
  if (c != null) {
    return new Pair<>(true, new ConstantExpression(new AsterixConstantValue(c)));