com.aliyun.odps.task

Class MergeTask

java.lang.Object

com.aliyun.odps.Task

com.aliyun.odps.task.MergeTask

public class MergeTask
extends Task

表示执行一个Merge查询的任务。

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MergeTask.CompactType

Nested classes/interfaces inherited from class com.aliyun.odps.Task

Task.Properties, Task.Property

Constructor Summary

Constructors

Constructor and Description
MergeTask(String name) 使用给定任务名构造一个MergeTask实例。
MergeTask(String name, String table) 使用给定任务名和查询语句构造一个MergeTask实例。

Method Summary

Modifier and Type	Method and Description
String	getTable() Deprecated.
List<String>	getTables() Get tables (or partitions) to merge.
static boolean	isCompactCommand(String sql)
static Instance	parseMergeTask(Odps odps, String sql, SQLTaskOption option)
static Instance	run(Odps odps, String tableId, Map<String,String> hints)
void	setTable(String table) Deprecated.
void	setTables(List<String> tables) Set tables (or partitions) to merge.

Methods inherited from class com.aliyun.odps.Task

getCommandText, getComment, getName, getProperties, setComment, setName, setProperties, setProperty

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MergeTask

public MergeTask(String name)

使用给定任务名构造一个MergeTask实例。

Parameters:

name - 任务名。

MergeTask

public MergeTask(String name,
                 String table)

使用给定任务名和查询语句构造一个MergeTask实例。

Parameters:

name - 任务名。

table - 表、分区信息。

Method Detail

getTable

@Deprecated
public String getTable()

Deprecated.

Get table (or partition) to merge.

Returns:

Table (or partition) to merge.

setTable

@Deprecated
public void setTable(String table)

Deprecated.

Set table (or partition) to merge.

Parameters:

table - Table (or partition) to merge. For non-partitioned table, the param should be the table name. For partitioned tables, the param should be in the following format: [tbl_name] partition([pt_col]=[pt_val], ...). [tbl_name], [pt_col] and [pt_val] should be replaced with real table name, partition column name and partition column value respectfully.

getTables

public List<String> getTables()

Get tables (or partitions) to merge.

Returns:

List of tables (or partitions).

setTables

public void setTables(List<String> tables)

Set tables (or partitions) to merge.

Parameters:

tables - List of tables (or partitions). For non-partitioned table, list entry should be the table name. For partitioned tables, list entry should be in the following format: [tbl_name] partition([pt_col]=[pt_val], ...). [tbl_name], [pt_col] and [pt_val] should be replaced with real table name, partition column name and partition column value respectfully.

isCompactCommand

public static boolean isCompactCommand(String sql)

parseMergeTask

public static Instance parseMergeTask(Odps odps,
                                      String sql,
                                      SQLTaskOption option)
                               throws OdpsException

Throws:

OdpsException

run

public static Instance run(Odps odps,
                           String tableId,
                           Map<String,String> hints)
                    throws OdpsException

Throws:

OdpsException