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
18,710 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
1,076 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
• 69,190 points
3,188 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
• 65,850 points
2,353 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
52,914 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
7,857 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
16,750 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
305 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
4,305 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
• 65,850 points
80,006 views
webinar REGISTER FOR FREE WEBINAR X
Send OTP
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP