Teradata Package for Python Function Reference on VantageCloud Lake - prune_filters - Teradata Package for Python - Look here for syntax, methods and examples for the functions included in the Teradata Package for Python.
Teradata® Package for Python Function Reference on VantageCloud Lake
- Deployment
- VantageCloud
- Edition
- Lake
- Product
- Teradata Package for Python
- Release Number
- 20.00.00.11
- Published
- August 2026
- ft:locale
- en-US
- ft:lastEdition
- 2026-08-13
- dita:id
- TeradataPython_FxRef_Lake_2000
- Product Category
- Teradata Vantage
- teradataml.store.feature_store.models.FilterManager.prune_filters = prune_filters(self, filter_id)
- DESCRIPTION:
Removes all filters with IDs lower than filter_id and reassigns
sequential IDs starting from 1 to the remaining filters.
PARAMETERS:
filter_id:
Required Argument.
Specifies the filter ID used as a threshold to prune filters.
Notes:
* The remaining filters with filter_id >= specified filter_id will be retained
and reassigned new filter_ids starting from 1.
* The 'filter_id' must exist in the filter artifact's table.
Types: int
RETURNS:
bool: True if the filters are deleted successfully.
RAISES:
TeradataMlException
EXAMPLES:
>>> load_example_data('dataframe', 'admissions_train')
>>> df = DataFrame("admissions_train")
# Create a FeatureStore.
>>> from teradataml import FeatureStore, FilterManager
>>> fs = FeatureStore(repo='vfs_v1', data_domain='sales')
Repo vfs_v1 does not exist. Run FeatureStore.setup() to create the repo and setup FeatureStore.
>>> fs.setup()
# Example 1: Create a FilterManager, load filter definitions, and prune filters with filter_id < 2.
# Create an instance of FilterManager and load filter definitions.
>>> fm = FilterManager(repo='vfs_v1', name='stats_filter_manager')
Filter Manager 'stats_filter_manager' does not exist. Run FilterManager.load_filter() to create it.
>>> fm.load_filter(df=df.groupby('stats').count()[['stats']])
True
>>> fm.list_filters()
stats
filter_id
3 Novice
2 Beginner
1 Advanced
# Prune filters with filter_id < 2, keeping only filters with filter_id >= 2.
>>> fm.prune_filters(2)
True
>>> fm.list_filters()
stats
filter_id
2 Novice
1 Beginner