diff --git a/ibis/backends/tests/test_client.py b/ibis/backends/tests/test_client.py
index edeeadcf119c4..0bb6bdc4b4cc5 100644
--- a/ibis/backends/tests/test_client.py
+++ b/ibis/backends/tests/test_client.py
@@ -84,7 +84,7 @@ def _create_temp_table_with_schema(backend, con, temp_table_name, schema, data=N
     ],
     ids=["no_schema", "schema"],
 )
-@pytest.mark.notimpl(["dask", "druid"])
+@pytest.mark.notimpl(["druid"])
 @pytest.mark.notimpl(
     ["flink"],
     reason="Flink backend supports creating only TEMPORARY VIEW for in-memory data.",
@@ -520,11 +520,6 @@ def test_insert_overwrite_from_dataframe(
 
 
 @pytest.mark.notimpl(["polars", "pandas"], reason="`insert` method not implemented")
-@pytest.mark.notyet(
-    ["risingwave"],
-    raises=PsycoPg2InternalError,
-    reason="truncate not supported upstream",
-)
 def test_insert_no_overwrite_from_expr(
     backend, con, employee_empty_temp_table, employee_data_2_temp_table
 ):
@@ -549,6 +544,11 @@ def test_insert_no_overwrite_from_expr(
     raises=TrinoUserError,
     reason="requires a non-memory connector for truncation",
 )
+@pytest.mark.notyet(
+    ["risingwave"],
+    raises=PsycoPg2InternalError,
+    reason="truncate not supported upstream",
+)
 def test_insert_overwrite_from_expr(
     backend, con, employee_data_1_temp_table, employee_data_2_temp_table
 ):
@@ -594,7 +594,7 @@ def _emp(a, b, c, d):
 
 
 @pytest.mark.notimpl(
-    ["polars", "pandas"],
+    ["polars", "dask", "pandas"],
     raises=AttributeError,
     reason="`insert` method not implemented",
 )
@@ -613,7 +613,7 @@ def test_insert_from_memtable(con, temp_table):
 
 
 @pytest.mark.notyet(
-    ["bigquery", "oracle", "exasol", "polars", "pandas", "druid"],
+    ["bigquery", "oracle", "dask", "exasol", "polars", "pandas", "druid"],
     raises=AttributeError,
     reason="doesn't support the common notion of a database",
 )
diff --git a/ibis/backends/trino/tests/conftest.py b/ibis/backends/trino/tests/conftest.py
index 77fb646ddf45d..7b1d256e80102 100644
--- a/ibis/backends/trino/tests/conftest.py
+++ b/ibis/backends/trino/tests/conftest.py
@@ -128,9 +128,7 @@ def load_tpch(self) -> None:
     def _tpch_table(self, name: str):
         from ibis import _
 
-        table = self.connection.table(
-            self.default_identifier_case_fn(name), schema="ibis_sf1", database="hive"
-        )
+        table = self.connection.table(name, schema="ibis_sf1", database="hive")
         table = table.mutate(s.across(s.of_type("double"), _.cast("decimal(15, 2)")))
         return table