Teradata Package for Python Function Reference | 20.00 - array_compact - 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 - 20.00

Deployment
VantageCloud
VantageCore
Edition
VMware
Enterprise
IntelliFlex
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_Enterprise_2000
Product Category
Teradata Vantage
teradataml.dataframe.sql.DataFrameColumn.array_compact = array_compact(self)
DESCRIPTION:
    Remove null values from the array.
 
PARAMETERS:
    None
 
RETURNS:
    ColumnExpression
 
EXAMPLES:
    >>> from teradataml import *
    >>> load_example_data("array", "array_table")
 
    # Create a DataFrame on 'array_table'.
    >>> df = DataFrame("array_table")
    >>> df
                     arr1                   arr2                        arr3
    id                                                                      
    1    (10,20,30,40,50)     (23,200,215,40,21)  ('ab','bc','cd','ab','ef')
    4   (180,28,38,48,58)  (30,NULL,NULL,250,27)  ('mn','no',NULL,'op','pq')
    2   (150,25,35,45,55)       (28,50,95,90,26)  ('xy','yz','za','ab','xy')
    6   (16,261,36,46,56)     (29,170,160,46,25)  ('uv','xy','ab','xy','yz')
    3   (12,22,320,42,52)     (25,22,140,200,23)  ('pq','ab','ab','st','tu')
    5    (14,24,34,44,54)  (26,NULL,NULL,180,24)  ('ij','jk',NULL,'kl','lm')
 
    # Example 1: Remove NULL values from array column 'arr2'.
    >>> res = df.assign(compact_arr = df.arr2.array_compact())
    >>> res
                     arr1                   arr2                        arr3         compact_arr
    id                                                                                          
    2   (150,25,35,45,55)       (28,50,95,90,26)  ('xy','yz','za','ab','xy')    (28,50,95,90,26)
    4   (180,28,38,48,58)  (30,NULL,NULL,250,27)  ('mn','no',NULL,'op','pq')         (30,250,27)
    3   (12,22,320,42,52)     (25,22,140,200,23)  ('pq','ab','ab','st','tu')  (25,22,140,200,23)
    6   (16,261,36,46,56)     (29,170,160,46,25)  ('uv','xy','ab','xy','yz')  (29,170,160,46,25)
    1    (10,20,30,40,50)     (23,200,215,40,21)  ('ab','bc','cd','ab','ef')  (23,200,215,40,21)
    5    (14,24,34,44,54)  (26,NULL,NULL,180,24)  ('ij','jk',NULL,'kl','lm')         (26,180,24)