Use static shape in join_nonshared_inputs

Author: ricardoV94

pymc/pytensorf.py

@@ -563,13 +563,13 @@ def join_nonshared_inputs(
         raise ValueError("Empty list of input variables.")
 
     raveled_inputs = pt.concatenate([var.ravel() for var in inputs])
+    size = sum(point[var_name].size for var_name in point)
 
     if not make_inputs_shared:
-        tensor_type = raveled_inputs.type
-        joined_inputs = tensor_type("joined_inputs")
+        joined_inputs = pt.tensor("joined_inputs", shape=(size,), dtype=raveled_inputs.dtype)
     else:
         joined_values = np.concatenate([point[var.name].ravel() for var in inputs])
-        joined_inputs = pytensor.shared(joined_values, "joined_inputs")
+        joined_inputs = pytensor.shared(joined_values, "joined_inputs", shape=(size,))
 
     if pytensor.config.compute_test_value != "off":
         joined_inputs.tag.test_value = raveled_inputs.tag.test_value