java.lang.Object
- org.h2.engine.QueryStatisticsData.QueryEntry

Enclosing class:: QueryStatisticsData

public static final class QueryStatisticsData.QueryEntry
extends java.lang.Object

The collected statistics for one query.

Field Summary

Fields
Modifier and Type	Field	Description
`int`	`count`	The number of times the statement was executed.
`long`	`executionTimeCumulativeNanos`	The total execution time.
`private double`	`executionTimeM2Nanos`
`long`	`executionTimeMaxNanos`	The maximum execution time, in nanoseconds.
`double`	`executionTimeMeanNanos`	The mean execution time.
`long`	`executionTimeMinNanos`	The minimum execution time, in nanoseconds.
`long`	`lastUpdateTime`	The last time the statistics for this entry were updated, in milliseconds since 1970.
`long`	`rowCountCumulative`	The total number of rows.
`private double`	`rowCountM2`
`long`	`rowCountMax`	The maximum number of rows.
`double`	`rowCountMean`	The mean number of rows.
`long`	`rowCountMin`	The minimum number of rows.
`java.lang.String`	`sqlStatement`	The SQL statement.

Constructor Summary

Constructors
Constructor Description

QueryEntry(java.lang.String sql)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getExecutionTimeStandardDeviation()`
`double`	`getRowCountStandardDeviation()`
`(package private) void`	`update(long timeNanos, long rows)`	Update the statistics entry.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - sqlStatement
```
public final java.lang.String sqlStatement
```
    The SQL statement.
  - count
```
public int count
```
    The number of times the statement was executed.
  - lastUpdateTime
```
public long lastUpdateTime
```
    The last time the statistics for this entry were updated, in milliseconds since 1970.
  - executionTimeMinNanos
```
public long executionTimeMinNanos
```
    The minimum execution time, in nanoseconds.
  - executionTimeMaxNanos
```
public long executionTimeMaxNanos
```
    The maximum execution time, in nanoseconds.
  - executionTimeCumulativeNanos
```
public long executionTimeCumulativeNanos
```
    The total execution time.
  - rowCountMin
```
public long rowCountMin
```
    The minimum number of rows.
  - rowCountMax
```
public long rowCountMax
```
    The maximum number of rows.
  - rowCountCumulative
```
public long rowCountCumulative
```
    The total number of rows.
  - executionTimeMeanNanos
```
public double executionTimeMeanNanos
```
    The mean execution time.
  - rowCountMean
```
public double rowCountMean
```
    The mean number of rows.
  - executionTimeM2Nanos
```
private double executionTimeM2Nanos
```
  - rowCountM2
```
private double rowCountM2
```
- Constructor Detail
  - QueryEntry
```
public QueryEntry(java.lang.String sql)
```
- Method Detail
  - update
```
void update(long timeNanos,
            long rows)
```
    Update the statistics entry.
    
    Parameters:
    
    timeNanos - the execution time in nanos
    
    rows - the number of rows
  - getExecutionTimeStandardDeviation
```
public double getExecutionTimeStandardDeviation()
```
  - getRowCountStandardDeviation
```
public double getRowCountStandardDeviation()
```

Class QueryStatisticsData.QueryEntry

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

sqlStatement

count

lastUpdateTime

executionTimeMinNanos

executionTimeMaxNanos

executionTimeCumulativeNanos

rowCountMin

rowCountMax

rowCountCumulative

executionTimeMeanNanos

rowCountMean

executionTimeM2Nanos

rowCountM2

Constructor Detail

QueryEntry

Method Detail

update

getExecutionTimeStandardDeviation

getRowCountStandardDeviation