DataStreamWriter.OutputMode Method

Definition

Namespace:

Microsoft.Spark.Sql.Streaming

Assembly:

Microsoft.Spark.dll

Package:

Microsoft.Spark v1.0.0

Overloads

OutputMode(OutputMode)	Specifies how data of a streaming DataFrame is written to a streaming sink.
OutputMode(String)	Specifies how data of a streaming DataFrame is written to a streaming sink.

OutputMode(OutputMode)

Specifies how data of a streaming DataFrame is written to a streaming sink.

public Microsoft.Spark.Sql.Streaming.DataStreamWriter OutputMode (Microsoft.Spark.Sql.Streaming.OutputMode outputMode);

member this.OutputMode : Microsoft.Spark.Sql.Streaming.OutputMode -> Microsoft.Spark.Sql.Streaming.DataStreamWriter

Public Function OutputMode (outputMode As OutputMode) As DataStreamWriter

Parameters

outputMode

OutputMode

Output mode enum

Returns

DataStreamWriter

This DataStreamWriter object

OutputMode(String)

Specifies how data of a streaming DataFrame is written to a streaming sink.

public Microsoft.Spark.Sql.Streaming.DataStreamWriter OutputMode (string outputMode);

member this.OutputMode : string -> Microsoft.Spark.Sql.Streaming.DataStreamWriter

Public Function OutputMode (outputMode As String) As DataStreamWriter

Parameters

outputMode

String

Output mode name

Returns

DataStreamWriter

This DataStreamWriter object

Remarks

The following mode is supported: "append": Only the new rows in the streaming DataFrame/Dataset will be written to the sink. "complete": All the rows in the streaming DataFrame/Dataset will be written to the sink every time there are some updates. "update": Only the rows that were updated in the streaming DataFrame will be written to the sink every time there are some updates. If the query doesn't contain aggregations, it will be equivalent to `append` mode.