Collections

ALTR Native classification uses regular expression-based (regex) classifiers to identify sensitive data in your Snowflake database. Define classifiers using regex patterns and organize them into collections .

Use this page to

Learn about each field

Name	Description
+ (Create a new collection)	Click to create a new, custom collection.
Add Classifier	Click and select either Create new to create a custom classifier and add it to the collection you’re in Add existing to add a classifier that already exists to the collection you’re in. Available for custom classifiers only.
Add to Collection	Available when you select one or more classifiers from the All Classifiers list. Click to add the selected classifiers to a collection.
Classifier Name	Unique name that identifies the classifier. Cannot begin with “ALTR” because that is reserved for ALTR Managed classifiers. Once the classifiers is created, the Classifier Name cannot be edited.
Collections	Number of collections the classifier belongs to.
Create new	Available on the All Classifiers list. Click to create a new, custom classifier.
Default Collections	Click to open the Default Collections page, which shows a card for each pre-built collection that ALTR maintains. Learn more
Delete classifier	Click to delete a custom classifier (i.e., a classifier you created) from ALTR if it is no longer needed. It is removed from any collection it is part of and deleted from ALTR. ALTR-managed classifiers cannot be deleted.
Description	Brief description of the classifier or collection, such as what type of data the pattern detects or the type of data in the collection. Unable to edit on ALTR Managed classifiers. Unable to edit on ALTR Managed classifiers.
Duplicate collection	Click to create a copy of the collection, including all of its classifiers. Learn more .
Import	Available on each card on the Default Collections page. Click to import that default collection into your organization.
Import All	Available on the Default Collections page. Click to import every default collection. Disabled when every default collection is already imported.
Minimum Match Threshold	Minimum percentage of the sampled data that must match the classifier pattern for the column to display in the classification report. The default value is 75%. Unable to edit on ALTR Managed classifiers.
Pattern	Valid RE2 regex pattern. Learn more . The classifier pattern is used to match results contained anywhere in the column data during a classification scan. Unable to edit on ALTR Managed classifiers.
Remove from collection	Click to remove a classifier from the collection if it is no longer needed, but it may still be in another collection or you don’t want to delete it from ALTR.
Sample by	Sample size measured by either a fraction of the table (table %) or an exact number of rows (row count). The default is to sample by row count with the default value of 1000 rows. When sampling by table %, the default value is 10% of the table. Unable to edit on ALTR Managed classifiers.
Search	Search on Classifier Name only using the first few letters. For example, start with “ALTR Managed -” to find the system classifiers.
Sync	Available on an imported default collection. Click to add the classifiers ALTR has released to the collection since your last import or sync. Disabled when the collection is up to date.