chore(deps): bump polars to 0.20.20 (#8960)

Bump polars to 0.20.20 to pick up some changes that allow more `.sql` expressions to work.

ibis/backends/polars/compiler.py

@@ -852,7 +852,7 @@ def temporal_truncate(op, **kw):
     arg = translate(op.arg, **kw)
     unit = "mo" if op.unit.short == "M" else op.unit.short
     unit = f"1{unit.lower()}"
-    return arg.dt.truncate(unit, "-1w")
+    return arg.dt.truncate(unit).dt.offset_by("-1w")
 
 
 def _compile_literal_interval(op):
@@ -879,7 +879,9 @@ def timestamp_bucket(op, **kw):
         arg = arg.dt.offset_by(neg_offset)
     else:
         offset = None
-    res = arg.dt.truncate(interval, offset)
+    res = arg.dt.truncate(interval)
+    if offset is not None:
+        res = res.dt.offset_by(offset)
     return res
 
 
@@ -1226,6 +1228,7 @@ def execute_arg_min(op, **kw):
 
 @translate.register(ops.SQLStringView)
 def execute_sql_string_view(op, *, ctx: pl.SQLContext, **kw):
+    translate(op.child, ctx=ctx, **kw)
     return ctx.execute(op.query)
 
 

ibis/backends/tests/test_dot_sql.py

@@ -77,11 +77,6 @@ def test_con_dot_sql(backend, con, schema):
     backend.assert_series_equal(result.astype(expected.dtype), expected)
 
 
-@pytest.mark.notyet(
-    ["polars"],
-    raises=PolarsComputeError,
-    reason="polars doesn't support quoted identifiers referencing CTEs",
-)
 @pytest.mark.notyet(
     ["bigquery"], raises=GoogleBadRequest, reason="requires a qualified name"
 )
@@ -123,10 +118,11 @@ def test_table_dot_sql(backend):
     assert pytest.approx(result) == expected
 
 
+@dot_sql_never
 @pytest.mark.notyet(
     ["polars"],
     raises=PolarsComputeError,
-    reason="polars doesn't support quoted identifiers referencing CTEs",
+    reason="polars doesn't support aliased tables",
 )
 @pytest.mark.notyet(
     ["bigquery"], raises=GoogleBadRequest, reason="requires a qualified name"
@@ -139,7 +135,6 @@ def test_table_dot_sql(backend):
     OracleDatabaseError,
     reason="oracle doesn't know which of the tables in the join to sort from",
 )
-@dot_sql_never
 def test_table_dot_sql_with_join(backend):
     alltypes = backend.functional_alltypes
     t = (
@@ -152,7 +147,7 @@ def test_table_dot_sql_with_join(backend):
             """,
             dialect="duckdb",
         )
-        .alias("ft")
+        .alias("ft2")
         .group_by("s")  # group by a column from SQL
         .aggregate(fancy_af=lambda t: t.new_col.mean())
         .alias("awesome_t")  # create a name for the aggregate
@@ -162,7 +157,7 @@ def test_table_dot_sql_with_join(backend):
               "l"."fancy_af" AS "yas",
               "r"."s" AS "s"
             FROM "awesome_t" AS "l"
-            LEFT JOIN "ft" AS "r"
+            LEFT JOIN "ft2" AS "r"
             ON "l"."s" = "r"."s"
             """,  # clickhouse needs the r.s AS s, otherwise the column name is returned as r.s
             dialect="duckdb",
@@ -185,7 +180,6 @@ def test_table_dot_sql_with_join(backend):
     backend.assert_frame_equal(result, expected)
 
 
-@pytest.mark.notyet(["polars"], raises=PolarsComputeError)
 @pytest.mark.notyet(["druid"], reason="druid doesn't respect column name case")
 @pytest.mark.notyet(
     ["bigquery"], raises=GoogleBadRequest, reason="requires a qualified name"
@@ -242,7 +236,6 @@ def test_dot_sql_reuse_alias_with_different_types(backend, alltypes, df):
 
 
 @pytest.mark.parametrize("dialect", dialects)
-@pytest.mark.notyet(["polars"], raises=PolarsComputeError)
 @dot_sql_never
 @pytest.mark.notyet(["druid"], reason="druid doesn't respect column name case")
 def test_table_dot_sql_transpile(backend, alltypes, dialect, df):
@@ -323,11 +316,6 @@ def mem_t(con):
 
 
 @dot_sql_never
-@pytest.mark.notyet(
-    ["polars"],
-    raises=PolarsComputeError,
-    reason="polars doesn't support selecting from quoted identifiers referencing CTEs",
-)
 @pytest.mark.notyet(
     ["druid"],
     raises=KeyError,

requirements-dev.txt

@@ -154,7 +154,7 @@ poetry-core==1.9.0 ; python_version >= "3.9" and python_version < "4.0"
 poetry-dynamic-versioning==1.2.0 ; python_version >= "3.9" and python_version < "4.0"
 poetry-plugin-export==1.7.1 ; python_version >= "3.9" and python_version < "4.0"
 poetry==1.8.2 ; python_version >= "3.9" and python_version < "4.0"
-polars==0.20.19 ; python_version >= "3.9" and python_version < "4.0"
+polars==0.20.20 ; python_version >= "3.9" and python_version < "4.0"
 pprintpp==0.4.0 ; python_version >= "3.9" and python_version < "4.0"
 pre-commit==3.7.0 ; python_version >= "3.9" and python_version < "4.0"
 prompt-toolkit==3.0.43 ; python_version >= "3.9" and python_version < "4.0"