ds-findBestTask.dot

digraph ds_findBestTask {
  node[shape=box];
  newrank=true;
  rankdir=LR;
  findBestTask -> {
    skylinePruning;
    storeTask;
    convertToPartialIndexScan;
    convertToTableScan;
    convertToIndexScan;
    convertToIndexMergeScan;
    tryToGetDualTask;
  };

  subgraph cluster_Index {
    graph[label="Index";fontsize=20;];
    getIndexMergeCandidate;
    getIndexCandidate;
    getOriginalPhysicalIndexScan;
    convertToIndexMergeScan;
    convertToPartialIndexScan;
    PhysicalIndexScan;
    convertToIndexScan;
    buildIndexMergeTableScan;
  }

  subgraph cluster_table {
    graph[label="table";fontsize=20;];
    convertToTableScan;
    convertToPartialTableScan;
    getOriginalPhysicalTableScan;
    getTableCandidate;
  }

  subgraph cluster_stat {
    graph[label="stat";fontsize=20;];
    GetTableAvgRowSize;
    Selectivity;
    Histogram;
    
  }
  buildIndexMergeTableScan -> {
    PhysicalTableScan;
    PhysicalSelection;
    GetTableAvgRowSize;
    Selectivity;
    Histogram;
  }

  skylinePruning -> {
    getIndexMergeCandidate;
    getTableCandidate;
    getIndexCandidate;
    compareCandidates;
  };

  convertToIndexMergeScan -> {
    buildIndexMergeTableScan;
    finishCopTask;
    convertToPartialIndexScan;
    convertToPartialTableScan;
  };

  convertToPartialTableScan -> {
    getOriginalPhysicalTableScan;
    PhysicalSelection;
  };

  convertToPartialIndexScan -> {
    getOriginalPhysicalIndexScan;
    PhysicalSelection;
  };

  convertToIndexScan -> {
    getOriginalPhysicalIndexScan;
    addPushedDownSelection;
  }

  convertToTableScan -> {
    getOriginalPhysicalTableScan;
    addPushedDownSelection;
  }

  getOriginalPhysicalIndexScan -> PhysicalIndexScan;
  getOriginalPhysicalTableScan -> PhysicalTableScan;
  addPushedDownSelection -> {
    splitSelCondsWithVirtualColumn;
    PhysicalSelection;
  }

}