DataStreamWriter.OutputMode Method
Definition
Important
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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.DataStreamWriterPublic Function OutputMode (outputMode As OutputMode) As DataStreamWriterParameters
- outputMode
- OutputMode
Output mode enum
Returns
This DataStreamWriter object
Applies to
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.DataStreamWriterPublic Function OutputMode (outputMode As String) As DataStreamWriterParameters
- outputMode
- String
Output mode name
Returns
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.