kosiew commented on code in PR #1016:
URL:
https://github.com/apache/datafusion-python/pull/1016#discussion_r1945827785
##########
python/tests/test_view.py:
##########
@@ -0,0 +1,34 @@
+from datafusion import SessionContext, col, literal
+
+
+def test_register_filtered_dataframe():
+ ctx = SessionContext()
+
+ data = {"a": [1, 2, 3, 4, 5], "b": [10, 20, 30, 40, 50]}
+
+ df = ctx.from_pydict(data, "my_table")
+
+ df_filtered = df.filter(col("a") > literal(2))
+ view = df_filtered.into_view()
+
+ assert view.kind == "view"
+
+ ctx.register_table("view1", view)
Review Comment:
This is modelled after how into_view is used in
[datafusion](https://github.com/apache/datafusion/blob/bab0f54daa99830339c0000a19c1b4e3489278ad/datafusion/core/tests/dataframe/mod.rs#L1670-L1677):
```
async fn with_column_renamed_ambiguous() -> Result<()> {
let df = test_table().await?.select_columns(&["c1", "c2", "c3"])?;
let ctx = SessionContext::new();
let table = df.into_view();
ctx.register_table("t1", table.clone())?;
ctx.register_table("t2", table)?;
```
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