Unique

Overview

You can use this Snap to eliminate duplicate documents in a document stream, such as duplicate rows in a CSV file. Learn more about deduplicating the records.



Limitations

Does not support Ultra tasks.

Snap views

View Description Examples of upstream and downstream Snaps
Input

Any Reader Snap followed by any File Parser Snap.

 Document input, likely with duplicate data.
Output

Any file Formatter Snap followed by a Writer Snap.

 Unique document data.
Error

Error handling is a generic way to handle errors without losing data or failing the Snap execution. You can handle the errors that the Snap might encounter when running the pipeline by choosing one of the following options from the When errors occur list under the Views tab. The available options are:

  • Stop Pipeline Execution Stops the current pipeline execution when an error occurs.
  • Discard Error Data and Continue Ignores the error, discards that record, and continues with the remaining records.
  • Route Error Data to Error View Routes the error data to an error view without stopping the Snap execution.

Learn more about Error handling in Pipelines.

Snap settings

Legend:
  • Expression icon (): Allows using pipeline parameters to set field values dynamically (if enabled). SnapLogic Expressions are not supported. If disabled, you can provide a static value.
  • SnapGPT (): Generates SnapLogic Expressions based on natural language using SnapGPT. Learn more.
  • Suggestion icon (): Populates a list of values dynamically based on your Snap configuration. You can select only one attribute at a time using the icon. Type into the field if it supports a comma-separated list of values.
  • Upload : Uploads files. Learn more.
Learn more about the icons in the Snap settings dialog.
Field / Field set Type Description
Label String

Required. Specify a unique name for the Snap. Modify this to be more appropriate, especially if more than one of the same Snaps is in the pipeline.

Default value: Unique

Example: Deduplicate Emp IDs
Minimum memory (MB) String/Expression If the available memory is less than this property value while processing input documents, the Snap stops fetching the next input document until more memory is available. This feature is disabled if this property value is 0.

Default value: 500

Example: 750
Minimum free disk space (MB) String/Expression If the free disk space is less than this property value, the Snap stops processing input documents until more free disk space is available. This feature is disabled if this property value is 0.

Default value: 500

Example: 750
Out-of-resource timeout (minutes) String/Expression If the Snap pauses longer than this property value while waiting for more memory available, it throws an exception to prevent the system from running out of memory or disk space.

Default value: 30

Example: 20
Snap execution Dropdown list
Choose one of the three modes in which the Snap executes. Available options are:
  • Validate & Execute: Performs limited execution of the Snap and generates a data preview during pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during pipeline runtime.
  • Execute only: Performs full execution of the Snap during pipeline execution without generating preview data.
  • Disabled: Disables the Snap and all Snaps that are downstream from it.

Default value: Execute only

Example: Validate & Execute

Example

Remove duplicate records