Data Profiling

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View tree previewer for hierarchical columns

You can view the tree previewer (

) for a profile run that includes hierarchical columns from Avro and Parquet source objects in the

Results

tab. Hierarchical columns are classified as columns of data types such as an array, struct, map, or union. Use the tree previewer to view all the nested hierarchical columns within the hierarchical columns.

The Results
tab contains a header area with profile run details, tree previewer area, filter and sort area, profile results area, and details area.

The following image shows the areas on the

Results

tab:

Header

Tree previewer

Filter and sort

Profile results

Details

Tree previewer: The tree previewer area displays the hierarchical and nested hierarchical columns. To view profile results for nested columns, click the tree previewer icon ( ), and then click the hierarchical column name or nested hierarchical column name from the tree previewer window.

The following image shows the sample tree previewer window:

Hierarchical column

Nested hierarchical column

Expand and collapse view

Profile results: The profile results area, by default, shows the profile results for all the columns in the summary view. When you click a non-hierarchical column, a detailed view of the profile results for the column appears. To view details of a hierarchical column, click the hierarchical column name. The hierarchical columns details view can include nested columns and other nested hierarchical columns. When you click the nested column name, a detailed view of the profile results for the nested column appears.

The following image shows the hierarchical columns in the

Results

tab: