WHY LOOKUP FUNCTION IS SLOW COMPARED TO APPLY MAP FUNCTION? I WANT ANY 2 REASONS

[#1]

WHY LOOKUP FUNCTION IS SLOW COMPARED TO APPLY MAP FUNCTION? I WANT ANY 2 REASONS

[#2]

I DNT KNW CHECK HELP FILE QV tHXZ

[#3]

Are you demanding two reasons for your question?

[#4]

Este documento es un gran lugar para apprender mas en qlikcommunity.

QlikCommunity Tip: How to get answers to your post?

[rbecher · Accepted solution]

My guess:

1. Mapping Load creates an unique index field (first field) and has only one returning field

2. lookup works on several fields per table, also with duplicate values