I'm a new spark user, and previously I'm from pandas background. Here's my Spark Dataframe

```
In[75]:  spDF
Out[75]: DataFrame[customer_id: string, name: string]

```

and when I `show` them

```
In[75]:  spDF.show()
Out[75]:

+-----------+-----------+
|customer_id|       name|
+-----------+-----------+
|      25620| MCDonnalds|
|      25620|  STARBUCKS|
|      25620|        nan|
|      25620|        nan|
|      25620| MCDonnalds|
|      25620|        nan|
|      25620| MCDonnalds|
|      25620|DUNKINDONUT|
|      25620|   LOTTERIA|
|      25620|        nan|
|      25620| MCDonnalds|
|      25620|DUNKINDONUT|
|      25620|DUNKINDONUT|
|      25620|        nan|
|      25620|        nan|
|      25620|        nan|
|      25620|        nan|
|      25620|   LOTTERIA|
|      25620|   LOTTERIA|
|      25620|  STARBUCKS|
+-----------+-----------+
only showing top 20 rows

```

Then I try querying columns only

```
In[76]:  spDF['name']
Out[76]: Column<b'name'>

```

But when I show them, I get the following error.

```
In[79]: spDF['name'].show()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-79-f6676d5e5ca2> in <module>()
----> 1 spDF['name'].show()

TypeError: 'Column' object is not callable

```

Anyone has an idea, what is this error?