Question: Why is it advised not to rely too heavily on User Defined Functions ( UDF ' s ) ? Spark provides all the functionality if

Why is it advised not to rely too heavily on User Defined Functions (UDF's)?
Spark provides all the functionality if you know it well enough
UDF's do not conform to actual Spark best practices
UDF's are inherently more computationally intensive
To Spark, UDF's are black boxes, and Spark cannot fully optimise UDF's

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

Q:

Consider a Pb-15% Sn alloy. During solidification, determine (a) The composition of the first solid to form; (b) The liquids temperature, solidus temperature, solvus temperature, and freezing range...

Q:

This is a review of an actual project plan for an MIS project: the Minnesota GeospatialCommons - Test Implementation. Based on the project plan,does the Minnesota Geospatial Commons project follow...

Q:

This is a review of an actual project plan for an MIS project: the Minnesota GeospatialCommons - Test Implementation. Based on the project plan,does the Minnesota Geospatial Commons project follow...

Q:

Answer the questions below for this year and last year, using your SEC 10-K: Category: Operating Activities 1. Net income versus total for operating activities: report these values. 2. Items of...

Q:

Answer the questions below for this year and last year, using your SEC 10-K: Category: Operating Activities 1. Net income versus total for operating activities: report these values. 2. Items of...

Q:

Please read the question Question : What strategies have you used to communicate in a language you were acquiring? What strategies do you think emergent bilinguals use? 3 How Do People Learn and How...

Q:

This text was adapted by The Saylor Foundation under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License without attribution as requested by the work's original creator or licensee. 1...

Q:

ITM 309: Business Information Technology and Systems Spring 2016 Watson and the new era of cognitive systems Jerry Haan IBM Cloud Ecosystem Development January 27, 2016 2013 International Business...

Q:

Mates Rates Rent-A-Car ( just do the part a) using visual studio code (C#) Criteria sheet - Par A Example supplementary files (readme.pdf) Example supplementary files (class-diagram.pdf) Assignment...

Q:

Tips from The Stuff of Heroes! The following is an excerpt from The Stuff of Heroes, by William Cohen, a retired Air Force major general. In the book Cohen includes dozens of inspiring stories from...

Q:

Post-mortem of the first phase: 4. How were the new roles defined, communicated, understood? This case presents two phases of a large business transformation project involving the implementation of...

Q:

The dealer's quote (bid-ask) for the dollar price of euros (quoted as dollars per euro) is $1.30 - $1.34. What will be the spread expressed in percentage terms? British pounds are trading at $1.32...

Q:

What are the advantages and disadvantages of using consumer panels?

Q:

According to the basic DCF stock valuation model, the value an investor should avign to a share of stock is dependent on the tength of time lie or the phens to hold the stook. True False

Q:

Consider the demand for peanut butter an increase in the demand for peanut butter a decrease in the income of consumers a chance in the expectations of consumers about their future income Are the 3...