c

pola-rs · Nov 14, 2024 · a5f53e1 · a5f53e1
1 parent 678355a
commit a5f53e1
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/py-polars/tests/unit/operations/test_join.py b/py-polars/tests/unit/operations/test_join.py
@@ -1113,3 +1113,13 @@ def test_join_key_type_coercion_19597() -> None:
         left.join(
             right, left_on=pl.col("a") * 2, right_on=pl.col("a") * 2
         ).collect_schema()
+
+
+def test_array_explode_join_19763() -> None:
+    q = pl.LazyFrame().select(
+        pl.lit(pl.Series([[1], [2]], dtype=pl.Array(pl.Int64, 1))).explode().alias("k")
+    )
+
+    q = q.join(pl.LazyFrame({"k": [1, 2]}), on="k")
+
+    assert_frame_equal(q.collect().sort("k"), pl.DataFrame({"k": [1, 2]}))