Package org.apache.drill.exec.metastore.analyze

Interface MetadataInfoCollector

All Known Implementing Classes:
FileMetadataInfoCollector
public interface MetadataInfoCollector
Interface for obtaining information about segments, files etc which should be handled in Metastore when producing incremental analyze.

  • Method Summary

    Modifier and Type
    Method
    Description
    List<MetadataInfo>
    getAllMetaToHandle()
    Returns list of all metadata info instances which should be handled either producing analyze or when fetching from the Metastore.
    List<MetadataInfo>
    getFilesInfo()
    Returns list of files metadata info which should be fetched from the Metastore.
    List<MetadataInfo>
    getMetadataToRemove()
    Returns list of all metadata info which corresponds to top-level segments and should be removed from the Metastore.
    org.apache.calcite.rel.core.TableScan
    getPrunedScan()
    Returns TableScan instance which will be used when produced incremental analyze.
    List<MetadataInfo>
    getRowGroupsInfo()
    Returns list of row groups metadata info which should be fetched from the Metastore.
    org.apache.drill.shaded.guava.com.google.common.collect.Multimap<Integer,MetadataInfo>
    getSegmentsInfo()
    Returns list of segments metadata info which should be fetched from the Metastore.
    boolean
    isOutdated()
    Returns true if table metadata is outdated.

  • Method Details

    • getRowGroupsInfo

      List<MetadataInfo> getRowGroupsInfo()
      Returns list of row groups metadata info which should be fetched from the Metastore.
      Returns:
      list of row groups metadata info

    • getFilesInfo

      List<MetadataInfo> getFilesInfo()
      Returns list of files metadata info which should be fetched from the Metastore.
      Returns:
      list of files metadata info

    • getSegmentsInfo

      org.apache.drill.shaded.guava.com.google.common.collect.Multimap<Integer,MetadataInfo> getSegmentsInfo()
      Returns list of segments metadata info which should be fetched from the Metastore.
      Returns:
      list of segments metadata info

    • getAllMetaToHandle

      List<MetadataInfo> getAllMetaToHandle()
      Returns list of all metadata info instances which should be handled either producing analyze or when fetching from the Metastore.
      Returns:
      list of all metadata info

    • getMetadataToRemove

      List<MetadataInfo> getMetadataToRemove()
      Returns list of all metadata info which corresponds to top-level segments and should be removed from the Metastore.
      Returns:
      list of all metadata info which should be removed

    • getPrunedScan

      org.apache.calcite.rel.core.TableScan getPrunedScan()
      Returns TableScan instance which will be used when produced incremental analyze. Table scan will contain minimal selection required for obtaining correct metadata.
      Returns:
      TableScan instance

    • isOutdated

      boolean isOutdated()
      Returns true if table metadata is outdated.
      Returns:
      true if table metadata is outdated