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boolean	isOutdated() Returns true if table metadata is outdated.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

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