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# Resource: Items

# Type: WixDataAggregatePipelineStages

# Action: unwind

# Link: https://dev.wix.com/docs/sdk/business-solutions/data/items/wix-data-aggregate-pipeline-stages/unwind.md

## Description: Adds an unwind stage to the aggregation pipeline.

The `unwind()` method adds a pipeline stage that unwinds an array field by creating a new result item for each array element. Each result contains the array element and all other fields from the original item.

## Schema:

```json
 Method: unwind(arrayFieldName)
 Description: Adds an unwind stage to the aggregation pipeline.  The `unwind()` method adds a pipeline stage that unwinds an array field by creating a new result item for each array element. Each result contains the array element and all other fields from the original item.
 Method parameters:
   param name:  arrayFieldName | type: string | description:  Array field to unwind. Use dot notation to specify a nested array. For example, `user.products` or `product.colors`.  Learn more about [field keys](https://support.wix.com/en/article/cms-formerly-content-manager-about-your-collection-fields#field-id-velo-by-wix-only). 
 Return type: REFERENCE<UnwindStage>

```