You can use the menus available in a column context menu to perform a variety of actions on the column or columns. Column menus are available in the following pages:
Depending on the data type of the column, the available options may vary.
NOTE: In the Column Browser panel, you can select multiple columns at the same time. The displayed column menu items are only the ones that apply to columns of all data types.
Data Type Menu
On the left side of the column header, in the Data Grid you can click the data type icon to review and select a different data type for the column. For more information, see Supported Data Types.You can also create custom data types for use in the Trifacta® platform. See Custom Type Dialog.
On the right side of the column header, select the drop-down caret to choose one of the following actions.
- Some options are available only for specific data types.
- In most cases, these actions result in a new step being inserted at the current location in your recipe. Before you apply one, you should verify that you are at the proper position in the recipe to apply this step.
Show in Grid
When a single column is selected in the Column Browser panel, you can use this option to select the data grid and change its focus to display the selected column.
Tip: Use the Column Browser panel to quickly locate and select columns for display or other actions. See Column Browser Panel.
Rename the column.
Tip: To prevent potential issues with downstream systems, you should limit your column lengths to no more than 128 characters.
Change the data type of the column. See Supported Data Types.
Move the column to the beginning or end or to a specified location in the dataset.
Hide this column from display in the application. To redisplay this column, you must select it in the Visible Columns panel. See Visible Columns Panel.
NOTE: Hide/Show commands do not create transform steps. Hidden columns still exist in the output.
NOTE: When a column is hidden from a dataset, it is hidden for all users. You should check the column browser for hidden columns in shared datasets.
Sort: Sort the values in the column by ascending or descending value. This command does not apply to some data types.
NOTE: Sort is intended primarily for display purposes in the Transformer page. For more information on its limitations at scale, see Sort Transform.
When a column is sorted in ascending order, the bottom values are mismatched and null values, in that order. These values appear at the top of the column when sorted in descending order.
Format the values in the column according to the selection.
NOTE: This menu is available only for columns of String and Datetime type.
Calculate a new column containing the values computed from the source column based on the selected function. This command does not apply to all data types.
Summarize as new column
Summarize values in the selected column using an aggregation formula, optionally grouping the values according to values in the column.
Summarize with Pivot
Generate summary table based on computations aggregated across groups.
Replace values in the selected column with based on text values, patterns, or delimiters.
Extract values from the selected column based on text values, specific types of data, or patterns in the data. Optionally, extracted data can be removed from the source.
Split the column into separate columns based on patterns, delimiters, positions in the value, or regular intervals throughout the value.
Explore the interactive profile of the column details. See Column Details Panel.
Show related Steps in Recipe
Highlight steps in the recipe panel where the selected column is referenced.
- If another column is dependent on the selected column, all steps pertaining to that column are highlighted as well.
- To dismiss the highlighting, click Clear at the top of the recipe panel.
For more information on disabling this feature, see Miscellaneous Configuration.
Perform a lookup of the column values against a set of values in another column of another dataset. See Lookup Wizard.
Remove the column from the dataset.
Tip: You can also select Hide to remove the column from display in the data grid. The column does remain as part of the dataset and is included in any generated results.
Delete the columns other than the selected column(s) from the dataset.
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