Code review comment: If these variables aren't defined by user, we would use default config values in of FE

Code under review:
public void initFuzzyModeVariables() {
        Random random = new Random(System.currentTimeMillis());
        this.parallelExecInstanceNum = random.nextInt(8) + 1;
        this.parallelPipelineTaskNum = random.nextInt(8);
        this.enableCommonExprPushdown = random.nextBoolean();
        this.enableLocalExchange = random.nextBoolean();
        
        
        this.disableStreamPreaggregations = random.nextBoolean();
        this.partitionedHashJoinRowsThreshold = random.nextBoolean() ? 8 : 1048576;
        this.partitionedHashAggRowsThreshold = random.nextBoolean() ? 8 : 1048576;
        this.enableShareHashTableForBroadcastJoin = random.nextBoolean();
        
        int randomInt = random.nextInt(4);
        if (randomInt % 2 == 0) {
            this.rewriteOrToInPredicateThreshold = 100000;
            this.enableFunctionPushdown = false;
            this.enableDeleteSubPredicateV2 = false;
        } else {
            this.rewriteOrToInPredicateThreshold = 2;
            this.enableFunctionPushdown = true;
            this.enableDeleteSubPredicateV2 = true;
        }
        this.runtimeFilterType = 1 << randomInt;
        /*
        switch (randomInt) {
            case 0:
                this.externalSortBytesThreshold = 0;
                this.externalAggBytesThreshold = 0;
                break;
            case 1:
                this.externalSortBytesThreshold = 1;
                this.externalAggBytesThreshold = 1;
                this.externalAggPartitionBits = 6;
                break;
            case 2:
                this.externalSortBytesThreshold = 1024 * 1024;
                this.externalAggBytesThreshold = 1024 * 1024;
                this.externalAggPartitionBits = 8;
                break;
            default:
                this.externalSortBytesThreshold = 100 * 1024 * 1024 * 1024;
                this.externalAggBytesThreshold = 100 * 1024 * 1024 * 1024;
                this.externalAggPartitionBits = 4;
                break;
        }
        */
        
        if (Config.pull_request_id > 0) {
            this.enablePipelineEngine = true;
            this.enableNereidsPlanner = true;

            switch (Config.pull_request_id % 4) {
                case 0:
                    this.runtimeFilterType |= TRuntimeFilterType.BITMAP.getValue();
                    break;
                case 1:
                    this.runtimeFilterType |= TRuntimeFilterType.BITMAP.getValue();
                    break;
                case 2:
                    this.runtimeFilterType &= ~TRuntimeFilterType.BITMAP.getValue();
                    break;
                case 3:
                    this.runtimeFilterType &= ~TRuntimeFilterType.BITMAP.getValue();
                    break;
                default:
                    break;
            }
        }

        if (Config.fuzzy_test_type.equals("p0")) {
            if (Config.pull_request_id > 0) {
                if (Config.pull_request_id % 2 == 1) {
                    this.batchSize = 4064;
                } else {
                    this.batchSize = 50;
                }
            }
        }

        
        
        
        
        this.topnOptLimitThreshold = 0;
    }

Line commented on: this.rewriteOrToInPredicateThreshold = 100000;

Revised code:
public void initFuzzyModeVariables() {
        Random random = new Random(System.currentTimeMillis());
        this.parallelExecInstanceNum = random.nextInt(8) + 1;
        this.parallelPipelineTaskNum = random.nextInt(8);
        this.enableCommonExprPushdown = random.nextBoolean();
        this.enableLocalExchange = random.nextBoolean();
        
        
        this.disableStreamPreaggregations = random.nextBoolean();
        this.partitionedHashJoinRowsThreshold = random.nextBoolean() ? 8 : 1048576;
        this.partitionedHashAggRowsThreshold = random.nextBoolean() ? 8 : 1048576;
        this.enableShareHashTableForBroadcastJoin = random.nextBoolean();
        
        int randomInt = random.nextInt(4);
        if (randomInt % 2 == 0) {
            this.rewriteOrToInPredicateThreshold = 100000;
            this.enableFunctionPushdown = false;
            this.enableDeleteSubPredicateV2 = false;
        } else {
            this.rewriteOrToInPredicateThreshold = 2;
            this.enableFunctionPushdown = true;
            this.enableDeleteSubPredicateV2 = true;
        }
        this.runtimeFilterType = 1 << randomInt;
        /*
        switch (randomInt) {
            case 0:
                this.externalSortBytesThreshold = 0;
                this.externalAggBytesThreshold = 0;
                break;
            case 1:
                this.externalSortBytesThreshold = 1;
                this.externalAggBytesThreshold = 1;
                this.externalAggPartitionBits = 6;
                break;
            case 2:
                this.externalSortBytesThreshold = 1024 * 1024;
                this.externalAggBytesThreshold = 1024 * 1024;
                this.externalAggPartitionBits = 8;
                break;
            default:
                this.externalSortBytesThreshold = 100 * 1024 * 1024 * 1024;
                this.externalAggBytesThreshold = 100 * 1024 * 1024 * 1024;
                this.externalAggPartitionBits = 4;
                break;
        }
        */
        
        if (Config.pull_request_id > 0) {
            this.enablePipelineEngine = true;
            this.enableNereidsPlanner = true;

            switch (Config.pull_request_id % 4) {
                case 0:
                    this.runtimeFilterType |= TRuntimeFilterType.BITMAP.getValue();
                    break;
                case 1:
                    this.runtimeFilterType |= TRuntimeFilterType.BITMAP.getValue();
                    break;
                case 2:
                    this.runtimeFilterType &= ~TRuntimeFilterType.BITMAP.getValue();
                    break;
                case 3:
                    this.runtimeFilterType &= ~TRuntimeFilterType.BITMAP.getValue();
                    break;
                default:
                    break;
            }
        }

        if (Config.fuzzy_test_type.equals("p0")) {
            if (Config.pull_request_id > 0) {
                if (Config.pull_request_id % 2 == 1) {
                    this.batchSize = 4064;
                } else {
                    this.batchSize = 50;
                }
            }
        }

        
        
        
        
        this.topnOptLimitThreshold = 0;
    }