Github user njayaram2 commented on a diff in the pull request:
https://github.com/apache/incubator-madlib/pull/69#discussion_r81263168
--- Diff: src/ports/postgres/modules/elastic_net/elastic_net.py_in ---
@@ -369,6 +378,37 @@ def elastic_net_train(schema_madlib, tbl_source,
tbl_result, col_dep_var,
# ========================================================================
+def _get_grouping_col_str(schema_madlib, source_table, grouping_col):
+ if grouping_col and grouping_col.lower() != 'null':
+ cols_in_tbl_valid(source_table,
+ _string_to_array_with_quotes(grouping_col),
+ 'elastic_net')
+ intersect = frozenset(
+ _string_to_array(grouping_col)).intersection(
+ frozenset(
+ ('coef', 'random_feature_data',
+ 'random_feature_data', 'loss'
+ 'num_rows_processed', 'num_rows_skipped',
+ 'norm_of_gradient', 'num_iterations')))
--- End diff --
Must discuss what must go in the frozenset for elastic net.
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