XPLAINable
RealAnyResultSetStatistics
, RealBasicNoPutResultSetStatistics
, RealCurrentOfStatistics
, RealDeleteCascadeResultSetStatistics
, RealDeleteResultSetStatistics
, RealDeleteVTIResultSetStatistics
, RealDistinctScalarAggregateStatistics
, RealDistinctScanStatistics
, RealGroupedAggregateStatistics
, RealHashJoinStatistics
, RealHashLeftOuterJoinStatistics
, RealHashScanStatistics
, RealHashTableStatistics
, RealIndexRowToBaseRowStatistics
, RealInsertResultSetStatistics
, RealInsertVTIResultSetStatistics
, RealJoinResultSetStatistics
, RealLastIndexKeyScanStatistics
, RealMaterializedResultSetStatistics
, RealNestedLoopJoinStatistics
, RealNestedLoopLeftOuterJoinStatistics
, RealNoPutResultSetStatistics
, RealNormalizeResultSetStatistics
, RealNoRowsResultSetStatistics
, RealOnceResultSetStatistics
, RealProjectRestrictStatistics
, RealRowCountStatistics
, RealRowResultSetStatistics
, RealScalarAggregateStatistics
, RealScrollInsensitiveResultSetStatistics
, RealSetOpResultSetStatistics
, RealSortStatistics
, RealTableScanStatistics
, RealUnionResultSetStatistics
, RealUpdateResultSetStatistics
, RealVTIStatistics
, RealWindowResultSetStatistics
public interface ResultSetStatistics extends XPLAINable
This interface extends Formatable so that all objects which implement this interface can be easily saved to the database.
Modifier and Type | Method | Description |
---|---|---|
double |
getEstimatedRowCount() |
Get the estimated row count for the number of rows returned
by the associated query or statement.
|
java.lang.String |
getScanStatisticsText(java.lang.String tableName,
int depth) |
Return information on the scan nodes from the statement execution
plan as a String.
|
java.lang.String |
getStatementExecutionPlanText(int depth) |
Return the statement execution plan as a String.
|
accept, getResultSetDescriptor, getResultSetTimingsDescriptor, getRSXplainDetails, getRSXplainType, getScanPropsDescriptor, getSortPropsDescriptor
java.lang.String getStatementExecutionPlanText(int depth)
depth
- Indentation level.java.lang.String getScanStatisticsText(java.lang.String tableName, int depth)
depth
- Indentation level.tableName
- if not NULL then return information for this table onlydouble getEstimatedRowCount()
Apache Derby V10.14 Internals - Copyright © 2004,2018 The Apache Software Foundation. All Rights Reserved.