fix(repr): allow ops.TableNode in fmt_value

Fixes a minor regression in the new repr

ibis/expr/format.py

@@ -568,6 +568,18 @@ def _fmt_value_physical_table(op: ops.PhysicalTable, **_: Any) -> str:
     return op.name
 
 
+@fmt_value.register
+def _fmt_value_table_node(
+    op: ops.TableNode, *, aliases: Aliases, **_: Any
+) -> str:
+    """Format a table as value.
+
+    This function is called when a table is used in a value expression. An
+    example is `table.count()`.
+    """
+    return f"{aliases[op.table.op()]}"
+
+
 @fmt_value.register
 def _fmt_value_string_sql_like(
     op: ops.StringSQLLike, *, aliases: Aliases

ibis/tests/expr/test_format.py

@@ -270,6 +270,11 @@ def test_tables_have_format_rules(cls):
     assert cls in ibis.expr.format.fmt_table_op.registry
 
 
+@pytest.mark.parametrize("cls", [ops.PhysicalTable, ops.TableNode])
+def test_tables_have_format_value_rules(cls):
+    assert cls in ibis.expr.format.fmt_value.registry
+
+
 def test_window_no_group_by():
     t = ibis.table(dict(a="int64", b="string"), name="t")
     expr = t.a.mean().over(ibis.window(preceding=0))