[GitHub] [carbondata] Pandahunter-cloud commented on a change in pull request #4197: [CARBONDATA-4267][Doc][summer-2021]Update and modify some content in quick-start-guide.md

[GitBox <gi...@apache.org>]

Pandahunter-cloud commented on a change in pull request #4197:
URL: https://github.com/apache/carbondata/pull/4197#discussion_r684726595



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File path: docs/quick-start-guide.md
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@@ -161,12 +161,23 @@ Start Spark shell by running the following command in the Spark directory:
 ```
 ./bin/spark-shell --conf spark.sql.extensions=org.apache.spark.sql.CarbonExtensions --jars <carbondata assembly jar path>
 ```
+
+In this shell, SparkSession is readily available as `spark` and Spark context is readily available as `sc`.
+
+In order to create a SparkSession we will have to configure it explicitly in the following manner :
+
+* Import the following :
+
+```
+import org.apache.spark.sql.SparkSession
+```
+
 **NOTE** 
  - In this flow, we can use the built-in SparkSession `spark` instead of `carbon`.
    We also can create a new SparkSession instead of the built-in SparkSession `spark` if need. 
    It need to add "org.apache.spark.sql.CarbonExtensions" into spark configuration "spark.sql.extensions". 
    ```
-   SparkSession newSpark = SparkSession
+   val newSpark : SparkSession = SparkSession

Review comment:
       In Option 2, an error will be reported when I use this method to declare a new sparksession object in spark-shell.
   ![image](https://user-images.githubusercontent.com/74487288/128623742-0127218b-2205-43ed-879c-7a6f2988817c.png)
   
   




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