How to find the number of elements present in the array in a Spark DataFame column

0 votes
I have a Spark DataFrame, where the second column contains the array of string. How can I write a program to retrieve the number of elements present in each array?
Jun 6, 2018 in Apache Spark by code799
20,816 views

1 answer to this question.

+1 vote

You can select the column and apply size method to find the number of elements present in array:

df.select(size($"col1"))
answered Jun 6, 2018 by Shubham
• 13,490 points

Related Questions In Apache Spark

0 votes
1 answer

How to get the number of elements in partition?

rdd.mapPartitions(iter => Array(iter.size).iterator, true) This command will ...READ MORE

answered May 8, 2018 in Apache Spark by kurt_cobain
• 9,390 points
1,590 views
0 votes
1 answer

How to find the number of null contain in dataframe?

Hey there! You can use the select method of the ...READ MORE

answered May 3, 2019 in Apache Spark by Omkar
• 69,210 points
4,073 views
0 votes
1 answer

How to remove the elements with a key present in any other RDD?

Hey, You can use the subtractByKey () function to ...READ MORE

answered Jul 22, 2019 in Apache Spark by Gitika
• 65,910 points
3,392 views
+1 vote
8 answers

How to print the contents of RDD in Apache Spark?

Save it to a text file: line.saveAsTextFile("alicia.txt") Print contains ...READ MORE

answered Dec 10, 2018 in Apache Spark by Akshay
58,872 views
+1 vote
2 answers
0 votes
3 answers

How to connect Spark to a remote Hive server?

JDBC is not required here. Create a hive ...READ MORE

answered Mar 8, 2019 in Big Data Hadoop by Vijay Dixon
• 190 points
11,288 views
0 votes
3 answers

How to transpose Spark DataFrame?

Please check the below mentioned links for ...READ MORE

answered Jan 1, 2019 in Apache Spark by anonymous
18,115 views
0 votes
1 answer

Different Spark Ecosystem

Spark has various components: Spark SQL (Shark)- for ...READ MORE

answered Jun 4, 2018 in Apache Spark by kurt_cobain
• 9,390 points
538 views
0 votes
2 answers

In a Spark DataFrame how can I flatten the struct?

// Collect data from input avro file ...READ MORE

answered Jul 4, 2019 in Apache Spark by Dhara dhruve
5,179 views
0 votes
5 answers

How to change the spark Session configuration in Pyspark?

You aren't actually overwriting anything with this ...READ MORE

answered Dec 14, 2020 in Apache Spark by Gitika
• 65,910 points
110,205 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP