# InputSchemaUpdate
<a name="API_InputSchemaUpdate"></a>

Describes updates for an SQL-based Kinesis Data Analytics application's input schema.

## Contents
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 ** RecordColumnUpdates **   <a name="APIReference-Type-InputSchemaUpdate-RecordColumnUpdates"></a>
A list of `RecordColumn` objects. Each object describes the mapping of the streaming source element to the corresponding column in the in-application stream.  
Type: Array of [RecordColumn](API_RecordColumn.md) objects  
Array Members: Minimum number of 1 item. Maximum number of 1000 items.  
Required: No

 ** RecordEncodingUpdate **   <a name="APIReference-Type-InputSchemaUpdate-RecordEncodingUpdate"></a>
Specifies the encoding of the records in the streaming source; for example, UTF-8.  
Type: String  
Length Constraints: Fixed length of 5.  
Pattern: `UTF-8`   
Required: No

 ** RecordFormatUpdate **   <a name="APIReference-Type-InputSchemaUpdate-RecordFormatUpdate"></a>
Specifies the format of the records on the streaming source.  
Type: [RecordFormat](API_RecordFormat.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/kinesisanalyticsv2-2018-05-23/InputSchemaUpdate) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kinesisanalyticsv2-2018-05-23/InputSchemaUpdate) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kinesisanalyticsv2-2018-05-23/InputSchemaUpdate)