# Relationalize class
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize"></a>

Flattens a nested schema in a `DynamicFrame` and pivots out array columns from the flattened frame.

## Example
<a name="pyspark-Relationalize-example"></a>

We recommend that you use the [`DynamicFrame.relationalize()`](aws-glue-api-crawler-pyspark-extensions-dynamic-frame.md#aws-glue-api-crawler-pyspark-extensions-dynamic-frame-relationalize) method to relationalize a `DynamicFrame`. To view a code example, see [Example: Use relationalize to flatten a nested schema in a `DynamicFrame`](aws-glue-api-crawler-pyspark-extensions-dynamic-frame.md#pyspark-relationalize-example).

## Methods
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-_methods"></a>
+ [\$1\$1call\$1\$1](#aws-glue-api-crawler-pyspark-transforms-Relationalize-__call__)
+ [apply](#aws-glue-api-crawler-pyspark-transforms-Relationalize-apply)
+ [name](#aws-glue-api-crawler-pyspark-transforms-Relationalize-name)
+ [describeArgs](#aws-glue-api-crawler-pyspark-transforms-Relationalize-describeArgs)
+ [describeReturn](#aws-glue-api-crawler-pyspark-transforms-Relationalize-describeReturn)
+ [describeTransform](#aws-glue-api-crawler-pyspark-transforms-Relationalize-describeTransform)
+ [describeErrors](#aws-glue-api-crawler-pyspark-transforms-Relationalize-describeErrors)
+ [describe](#aws-glue-api-crawler-pyspark-transforms-Relationalize-describe)

## \$1\$1call\$1\$1(frame, staging\$1path=None, name='roottable', options=None, transformation\$1ctx = "", info = "", stageThreshold = 0, totalThreshold = 0)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-__call__"></a>

Relationalizes a `DynamicFrame` and produces a list of frames that are generated by unnesting nested columns and pivoting array columns. You can join a pivoted array column to the root table by using the join key that is generated in the unnest phase.
+ `frame` – The `DynamicFrame` to relationalize (required).
+ `staging_path` – The path where the method can store partitions of pivoted tables in CSV format (optional). Pivoted tables are read back from this path.
+ `name` – The name of the root table (optional).
+ `options` – A dictionary of optional parameters. Currently unused. 
+ `transformation_ctx` – A unique string that is used to identify state information (optional).
+ `info` – A string associated with errors in the transformation (optional).
+ `stageThreshold` – The maximum number of errors that can occur in the transformation before it errors out (optional). The default is zero.
+ `totalThreshold` – The maximum number of errors that can occur overall before processing errors out (optional). The default is zero.

## apply(cls, \$1args, \$1\$1kwargs)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-apply"></a>

Inherited from `GlueTransform` [apply](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-apply).

## name(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-name"></a>

Inherited from `GlueTransform` [name](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-name).

## describeArgs(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-describeArgs"></a>

Inherited from `GlueTransform` [describeArgs](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeArgs).

## describeReturn(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-describeReturn"></a>

Inherited from `GlueTransform` [describeReturn](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeReturn).

## describeTransform(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-describeTransform"></a>

Inherited from `GlueTransform` [describeTransform](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeTransform).

## describeErrors(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-describeErrors"></a>

Inherited from `GlueTransform` [describeErrors](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeErrors).

## describe(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-Relationalize-describe"></a>

Inherited from `GlueTransform` [describe](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describe).