# Metadata structure of stream

## ![](/files/zzgbmv15Qa3lpUr7QEfc) Metadata structure of stream

### Description <a href="#description" id="description"></a>

The Metadata Structure Of Stream transform produces the metadata structure of the input fields of this transform as output.

Before producing this output the transform reads and discards (or eats) all input rows.

| Hop Engine | <sup>✓</sup> |
| ---------- | ------------ |
| Spark      | ?            |
| Flink      | ?            |
| Dataflow   | ?            |

### Options

| Option                     | Description                                                               |
| -------------------------- | ------------------------------------------------------------------------- |
| Transform name             | Name of the transform.                                                    |
| Output row count           | Include the number of rows eaten by this transform in the output          |
| Field for row count        | The name of the field containing the number of rows eaten                 |
| Include position field?    | Include the field position in the transform’s output                      |
| Field for position         | The name of the field containing position                                 |
| Include field name field?  | Include the field name in the transform’s output                          |
| Field for field name       | The name of the field containing field’s name                             |
| Include comment field?     | Include the field comment in the transform’s output                       |
| Field for comments         | The name of the field containing the comment                              |
| Include type field?        | Include the field data type in the transform’s output                     |
| Field for type             | The name of the field containing the data type                            |
| Include format mask field? | Include the format mask field containing the format mask used on the data |
| Field for format mask      | The name of the field containing the format mask                          |
| Include length field?      | Include the field length in the transform’s output                        |
| Field for length           | The name of the field containing the data length                          |
| Include precision field?   | Include the field precision in the transform’s output                     |
| Field for precision        | The name of the field containing precision (if value is numeric)          |
| Include origin field?      | Include the field origin in the transform’s output                        |
| Field for origin           | The name of the field containing field’s origin                           |


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