query:      `select _2 from S3object where _2 IS NULL`,
			wantResult: ``,
		},
		{
			name:  "select-is_null_results",
			input: testInput,
			query: `select _2 from S3object WHERE _100 IS NULL`,
			wantResult: `{"_2":"2010-01-01T"}
{"_2":"2017-01-02T03:04Z"}`,
		},
		{
			name:  "select-is_not_null_results",
			input: testInput,
			query: `select _2 from S3object where _2 IS NOT NULL`,

                        gradleWrapper {
                            name = "GRADLE_RUNNER${if (repeatIndex == 0) "" else "_2"}"
                            tasks = ""
                            workingDir = os.perfTestWorkingDir

                            val typeExtraParameters = if (type.extraParameters.isEmpty()) "" else " ${type.extraParameters}"

`,
			totalFields: 308*2 + 1,
		}, {
			file:            "nyc-taxi-data-noheader-100k.csv",
			recordDelimiter: "\n",
			fieldDelimiter:  ",",
			header:          false,

  }

  public void testIteratorRemove_actualMap() {
    // Override to avoid using mocks.
    multiset = ConcurrentHashMultiset.create();

    multiset.add(KEY);
    multiset.add(KEY + "_2");
    multiset.add(KEY);

    int mutations = 0;
    for (Iterator<String> it = multiset.iterator(); it.hasNext(); ) {
      it.next();
      it.remove();
      mutations++;
    }