Class Analyze

java.lang.Object

org.h2.command.Prepared

org.h2.command.ddl.DefineCommand

org.h2.command.ddl.Analyze

public class Analyze
extends DefineCommand

This class represents the statements ANALYZE and ANALYZE TABLE

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	Analyze.SelectivityData

Field Summary

Fields

Modifier and Type	Field	Description
private int	sampleRows	The sample size.
private Table	table	used in ANALYZE TABLE...

Fields inherited from class DefineCommand

transactional

Fields inherited from class Prepared

create, parameters, prepareAlways, session, sqlStatement, sqlTokens

Constructor Summary

Constructors

Constructor	Description
Analyze(SessionLocal session)

Method Summary

Modifier and Type	Method	Description
static void	analyzeTable(SessionLocal session, Table table, int sample, boolean manual)	Analyze this table.
int	getType()	Get the command type as defined in CommandInterface
void	setTable(Table table)
void	setTop(int top)
long	update()	Execute the statement.

Methods inherited from class DefineCommand

isReadOnly, isTransactional, queryMeta, setTransactional

Methods inherited from class Prepared

checkCanceled, checkParameters, collectDependencies, getCteCleanups, getCurrentRowNumber, getObjectId, getParameters, getPersistedObjectId, getPlanSQL, getSession, getSimpleSQL, getSQL, getSQLTokens, isCacheable, isQuery, needRecompile, prepare, query, setCommand, setCteCleanups, setCurrentRowNumber, setParameterList, setPersistedObjectId, setPrepareAlways, setRow, setSession, setSQL, toString

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

sampleRows

private int sampleRows

The sample size.

table

private Table table

used in ANALYZE TABLE...

Constructor Details

Analyze

public Analyze(SessionLocal session)

Method Details

setTable

public void setTable(Table table)

update

public long update()

Description copied from class: Prepared

Execute the statement.

Overrides:

update in class Prepared

Returns:

the update count

analyzeTable

public static void analyzeTable(SessionLocal session,
 Table table,
 int sample,
 boolean manual)

Analyze this table.

Parameters:

session - the session

table - the table

sample - the number of sample rows

manual - whether the command was called by the user

setTop

public void setTop(int top)

getType

public int getType()

Description copied from class: Prepared

Get the command type as defined in CommandInterface

Specified by:

getType in class Prepared

Returns:

the statement type